WO2007083563A1 - 組成成分の算出に用いられた身体部位を認識できる体組成計 - Google Patents
組成成分の算出に用いられた身体部位を認識できる体組成計 Download PDFInfo
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- WO2007083563A1 WO2007083563A1 PCT/JP2007/050240 JP2007050240W WO2007083563A1 WO 2007083563 A1 WO2007083563 A1 WO 2007083563A1 JP 2007050240 W JP2007050240 W JP 2007050240W WO 2007083563 A1 WO2007083563 A1 WO 2007083563A1
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- impedance
- whole body
- body composition
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/053—Measuring electrical impedance or conductance of a portion of the body
- A61B5/0537—Measuring body composition by impedance, e.g. tissue hydration or fat content
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
- A61B2560/04—Constructional details of apparatus
- A61B2560/0456—Apparatus provided with a docking unit
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
- A61B2560/04—Constructional details of apparatus
- A61B2560/0462—Apparatus with built-in sensors
- A61B2560/0468—Built-in electrodes
Definitions
- Body composition meter that can recognize body parts used for calculating composition components
- the present invention relates to a body composition meter, and more particularly to a body composition meter capable of calculating a body composition component (body composition) by a bioelectrical impedance method.
- Patent Document 1 Japanese Unexamined Patent Publication No. 2005-230120 (hereinafter referred to as Patent Document 1), a current applying electrode and a voltage measuring electrode are arranged in both hands and both feet, and the impedance of each part of a living body is measured.
- the body composition meter for calculating the body composition of the subject means for determining the measurement state of each part based on the measured impedance of each part, and mode switching means for switching the impedance measurement mode based on the measurement state
- An apparatus for measuring body composition has been proposed. According to this, it is possible to automatically select a measurement mode suitable for the subject and obtain highly reliable body composition data by a simple operation.
- Patent Document 1 Japanese Patent Laid-Open No. 2005-230120
- Patent Document 1 does not disclose notifying the subject of which measurement mode or in which part the measurement result is obtained. For this reason, the subject has a body composition calculated using different measurement modes or impedances of different parts, and the body composition calculated using the impedance measured under the same conditions. There is a risk of confusion.
- the present invention has been made in order to solve the above-described problems, and the purpose of the present invention is to determine the body part to be detected for the potential difference used for the calculation of the whole body composition.
- An object is to provide a body composition meter that can be easily recognized by a subject.
- a body composition meter includes a plurality of hand electrodes, a plurality of foot electrodes, and a plurality of bodies including the whole body of a subject, both hands and both feet using the hand electrodes and the foot electrodes. Based on the detection unit for detecting a plurality of potential differences in each part, at least one of the potential differences detected by the detection unit, and the body information of the subject, the body composition of the whole body of the subject is calculated. A body composition calculating unit for detecting the potential difference, and a reporting unit for reporting information on the body part of the potential difference detection target used for calculating the body composition of the whole body.
- the body composition meter is provided with a hand electrode, a detection unit, and a body composition calculation unit, and is provided with a first unit that can be grasped with both hands of the subject and a foot electrode, and both feet of the subject.
- a cable for electrically connecting the first unit and the second unit the cable being connected to the first unit or the second unit. It is detachable and determines the body part to be detected based on the detection result of the connection detection unit and the connection detection unit for detecting whether the cable is connected to the first unit or the second unit.
- a discriminator for detecting that the body part to be detected is a whole body and detecting that the body is not connected by the connection detector.
- the body part to be detected The rank is determined as both hands.
- a storage detection unit for detecting whether or not the first unit is stored in the storage unit, a cable for electrically connecting the first unit and the second unit, and a storage detection unit And a discriminating unit for discriminating the body part to be detected based on the detection result of the detection unit, and when the discriminating unit detects that the body part is stored by the storage detection unit, the body part to be detected is When it is determined that the storage detection unit detects that the body is not stored, it is preferable to determine that the body part to be detected is the whole body.
- the body composition calculation unit includes a first calculation unit for calculating the body composition of the first whole body using the whole body impedance based on the first potential difference in the whole body, and Using the correction part for correcting the impedance of the limb based on the second potential difference at the body part and the impedance of the limb after correction by the correction part, the second body composition for calculating the body composition of the second body is calculated. 2 calculation units.
- the first calculation unit is based on the whole body impedance, the body information of the subject, and a predetermined first estimation expression indicating the relationship between the whole body impedance, the body information, and the body composition of the whole body.
- the body composition of the first whole body of the subject is calculated, the impedance of the two limbs based on the second potential difference detected during the first potential difference detection, the body information of the subject, the impedance of the two limbs, A third calculation unit for calculating a third body composition of the subject based on a predetermined second estimation formula indicating the relationship between the body information and the body composition of the whole body;
- a correction value calculation unit for calculating the correction value of the impedance of the limb so that the body composition matches the body composition of the third whole body, and a memory for storing the correction value data as correlation information And a section.
- the correction unit corrects the limb impedance based on the correction value data, and the second calculation unit calculates the corrected limb impedance, the subject's physical information, and the second estimation formula. Based on the above, it is desirable to calculate the body composition of the second whole body of the subject.
- the first calculation unit is based on the whole body impedance, the body information of the subject, and a predetermined estimation formula indicating the relationship between the whole body impedance, the body information, and the body composition of the whole body, Correlation to calculate the body composition of the first whole body of the subject and to calculate the correlation between the whole body impedance and the impedance of the two limbs based on the second potential difference detected at the time of detecting the first potential difference
- the correlation calculation unit and the correlation data representing the correlation are A storage unit for storing the information as information.
- the correction unit corrects the limb impedance based on the correlation data, and the second calculation unit is based on the corrected limb impedance, the physical information of the subject, and the estimation formula. V, prefer to calculate the body composition of the second whole body.
- the body composition calculation unit includes a first calculation unit for calculating a body composition of the first whole body using a whole body impedance based on the first potential difference in the whole body, and a body other than the whole body.
- the second calculation unit for calculating the body composition of the second whole body using the impedance of the limb based on the second potential difference in the body part, and the calculated body composition of the second whole body as the first body
- a correction unit for correcting based on the correlation information indicating the relationship between the whole body composition and the second whole body composition.
- the first calculation unit is based on the whole body impedance, the body information of the subject, and a predetermined first estimation expression indicating the relationship between the whole body impedance, the body information, and the body composition of the whole body.
- the body composition of the first whole body of the subject is calculated, and the second calculation unit calculates the relationship between the impedance of the limb, the body information of the subject, the impedance of the limb, the body information, and the body composition of the whole body.
- the body composition of the second whole body of the subject is calculated based on the predetermined second estimation formula shown, and the body composition meter is detected when the first whole body composition and the first potential difference are detected.
- a correlation calculation unit for calculating a correlation with the second body composition based on the second potential difference; and a storage unit for storing correlation data representing the correlation as correlation information.
- the body composition meter further includes a display unit for displaying a calculation result of the whole body composition, and the notification unit displays information on the body part to be detected on the display unit.
- the body composition meter further includes a sound output unit for outputting sound, and the notification unit outputs information on the body part to be detected to the sound output unit by sound.
- the body composition meter further includes a storage unit for storing the calculated body composition of the whole body and information on the body part to be detected in association with each other.
- the body composition meter further includes a reading unit for reading the whole body composition stored in the storage unit, and the notification unit includes the read whole body composition and the whole body body. Information on the body part to be detected stored in association with the composition is simultaneously notified.
- the subject can easily recognize which body part has the whole body composition calculated based on the potential difference. As a result, it is possible to prevent confusion as if the applied force is a result calculated based on the potential difference in the same body part.
- FIG. 2 is a block diagram showing a hardware configuration of a body composition monitor according to Embodiments 1 to 3 of the present invention.
- FIG. 4 is a diagram showing an example of a data structure of a memory in the body composition monitor according to the first embodiment of the present invention.
- FIG. 6 is a flowchart showing mode discrimination processing in the first to third embodiments of the present invention.
- FIG. 8 is a flowchart showing whole body measurement processing in Embodiments 1 to 3 of the present invention.
- FIG. 9 is a diagram showing an example of a display screen in step S120 of FIG.
- FIG. 10 is a flowchart showing a first setting process in the first embodiment of the present invention.
- FIG. 11 is a flowchart showing a second setting process in the first embodiment of the present invention.
- FIG. 12 is a flowchart showing hand measurement processing in Embodiments 1 to 3 of the present invention.
- FIG. 13 is a flowchart showing a first body composition calculation process in the first embodiment of the present invention.
- FIG. 14 is a diagram showing an example of a display screen in step S314 of FIG.
- FIG. 15 is a flowchart showing a hand measurement process in the first to third embodiments of the present invention.
- FIG. 16 is a flowchart showing a second body composition calculation process in the first embodiment of the present invention.
- FIG. 17 is a diagram showing an example of a display screen in step S514 of FIG.
- FIG. 18 is a flowchart showing a memory read-out display process in a modification of the first embodiment of the present invention.
- FIG. 19 is a diagram showing an example of a display screen in step S 908 in FIG. 18.
- FIG. 20 is a functional block diagram of a body composition analyzer in the second embodiment of the present invention.
- ⁇ 21 A diagram showing an example of a data structure of a memory in the body composition monitor according to the second embodiment of the present invention.
- FIG. 22 A flowchart showing a first setting process according to the second embodiment of the present invention.
- FIG. 23 A flowchart showing a second setting process according to the second embodiment of the present invention.
- FIG. 24 is a flowchart showing a first body composition calculation process in the second embodiment of the present invention.
- FIG. 26 is a functional block diagram of a body composition monitor in the third embodiment of the present invention.
- FIG. 27 is a diagram showing an example of a data structure of a memory in the body composition monitor according to the third embodiment of the present invention.
- FIG. 28 is a flowchart showing a first setting process in the third embodiment of the present invention.
- FIG. 29 is a flowchart showing a second setting process in the third embodiment of the present invention.
- FIG. 30 is a flowchart showing a first body composition calculation process in the third embodiment of the present invention.
- FIG. 31 is a flowchart showing a second body composition calculation process in the third embodiment of the present invention.
- FIG. 1 is a diagram showing an example of the appearance of body composition monitor 100 according to Embodiment 1 of the present invention.
- body composition meter 100 includes an upper limb unit 1 on which a subject can hold with both hands, a lower limb unit 2 on which both feet of the subject can be placed, upper limb unit 1 and lower limb unit 2. And a cable 3 for electrical connection.
- the upper limb unit 1 includes a main body 10a and grips 1 Ob and 10c provided on the left and right of the main body 10a.
- the main body unit 10a is provided with a display unit 15 for displaying measurement results and various information, and an operation unit 16 that is operated by the subject to receive instructions from the subject and input of various information.
- the grips 10b, 10c are provided with a plurality of electrodes El1, E12, E13, E14.
- the grips 10b and 10c are configured so that the subject can hold with both hands.
- the left hand grip 10b is provided with electrodes Ell and E13, and the right hand grip 10c is provided with electrodes E12 and E14.
- Electrodes El l and E12 provided on the upper sides of the grips 10b and 10c are current application electrodes, respectively, and electrodes E13 provided on the lower sides of the grips 10b and 10c, respectively.
- E14 is a voltage detection electrode.
- the upper limb unit 1 is described as including the grips 10b and 10c configured in a handle shape, but is not limited to such a form. It is only necessary that the subject can hold the upper limb unit 1 with both hands and the electrodes E11 to E14 are arranged on the part to be held with both hands. That is, electrodes El l, E13 are placed on the subject's left hand and the right hand The electrodes El 2 and E 14 may be in contact with each other.
- a plurality of electrodes E21, E22, E23, E24 are provided on the upper surface of the lower limb unit 2 (the surface on which the subject places both feet).
- the electrodes E21 and E22 provided on the front side of the lower limb unit 2 are current application electrodes, respectively, and the rear side of the lower limb unit 2 (the subject in the measurement posture).
- Electrodes E23 and E24 provided on the heel side) are voltage detection electrodes.
- the lower limb unit 2 includes a storage unit 20 for storing the upper limb unit 1. Further, the lower limb unit 2 is preferably provided with a storage detection unit 21 for detecting the storage of the upper limb unit 1 in the storage unit 20.
- the storage detector 21 is constituted by a sensor, for example.
- a connector 31 for enabling attachment to the connector 18 incorporated in the upper limb unit 1 is provided at the end of the cable 3.
- the upper limb unit 1 and the cable 3 are detachable.
- the lower limb unit 2 and the cable 3 may be detachable.
- the electrodes E11 to E14 are collectively referred to as “hand electrode E10”, and the electrodes E21 to E24 are collectively referred to as “foot electrode E20” t.
- FIG. 2 is a block diagram showing a hardware configuration of body composition monitor 100 according to Embodiment 1 of the present invention.
- the upper limb unit 1 covers the hand electrode E10, the display unit 15, the operation unit 16, and the connector 18, and the current is applied between the limbs of the subject by both the hand electrode E10 and the foot electrode E20.
- a potential difference between the limbs (whole body) is detected, and the subject's whole body (both hands and both legs), both hands (right and left hands),
- a detection unit 11 for detecting a plurality of potential differences in each of a plurality of body parts including a right foot and a left foot
- a control unit 12 for controlling the whole body composition meter 100, a timer 13 for measuring the date and time, Further, it further includes a memory 14 for storing various data and programs, a power supply unit 17 for supplying power to the control unit 12, and a sensor 19 for detecting attachment / detachment of the cable 3 and the upper limb unit 1.
- the detection unit 11 is controlled by the control unit 12 to switch electrodes. Information about the detected potential difference is output to the control unit 12.
- the detection unit 11 includes, for example, the hand electrode E10 and the foot Connected to all of the electrodes E20.
- the detection unit 11 causes a constant current to flow through a switching switch (not shown) for switching electrodes in accordance with an instruction from the control unit 12 and at least one pair of current electrodes selected by the switching switch.
- a constant current generator (not shown), and in a state where a constant current is applied to the subject via the current electrode, it is selected by the switching switch! And at least one pair of voltage electrodes Detect potential difference.
- the impedance based on the potential difference detected by the detection unit 11 using both the hand electrode E10 and the foot electrode E20 is referred to as “whole body impedance”.
- the impedance based on the potential difference detected by the detection unit 11 using only the hand electrode E10 is ⁇ impedance between both hands ''
- the impedance based on the potential difference detected by the detection unit 11 using only the foot electrode E20 is ⁇ impedance between both feet ''.
- impedance in body parts other than the whole body both hands, both feet, right hand, left foot, etc.
- impedance between both hands and impedance between both feet is also referred to as “impedance of two limbs”.
- the control unit 12 is configured by, for example, a CPU (Central Processing Unit).
- the memory 14 is constituted by a nonvolatile memory, for example, a flash memory.
- the display unit 15 is composed of, for example, a liquid crystal.
- the operation unit 16 includes a power switch 16.1 for inputting a power ONZOFF instruction, a measurement start switch 16.2 for instructing a measurement start, and the like.
- Body composition meter 100 in the present embodiment is an apparatus for measuring the whole body composition of a subject.
- the body composition meter 100 has a “whole body measurement mode” for measuring the body composition of the whole body based on the whole body impedance (denoted as “Zw”), the impedance of the two limbs, ie, the impedance between both hands (denoted as “Zh”) It has a “simple measurement mode” that measures the body composition of the whole body based on the impedance between them (denoted as “Zf”).
- the simple measurement mode includes the “hand simple measurement mode” that measures the whole body composition based on the impedance between both hands Zh and the “foot-simple measurement mode” that measures the whole body composition based on the impedance Zf between both feet. .
- the test posture of the subject is such that both the hands and both feet of the subject are in contact with the hand electrode E10 and the foot electrode E20, respectively.
- the measurement posture of the subject when measuring the whole body composition in the simple measurement mode is such that both hands of the subject are in contact with the hand electrode E10.
- the measurement posture of the subject when measuring the whole body composition in the simple leg measurement mode is such that both feet of the subject are in contact with the foot electrode E10.
- Embodiment 1 of the present invention information on the body part (hereinafter referred to as “measurement part” !, U) to be detected for the potential difference used for calculation of the body composition of the whole body is notified to the subject.
- the “information on the measurement site” may be, for example, information representing the measurement site itself, or information indirectly representing the measurement site such as a mode name.
- FIG. 3 is a functional block diagram of body composition monitor 100 according to Embodiment 1 of the present invention.
- control unit 12 includes a whole body impedance measurement unit 101 for measuring whole body impedance, a two limb impedance measurement unit 102 for measuring the impedance of the two limbs, and a whole body impedance measurement unit 101.
- correction unit for correcting the first ⁇ composition calculating unit 103 for calculating the body composition of the whole body based on the whole body impedance measured, the impedance of the two limbs which is measured by the two limbs impedance measuring unit 102 by 104 And a second body thread and composition calculation unit 105 for calculating the body composition of the whole body based on the impedance of the limb corrected by the correction unit 104, and a correlation setting unit 106 for setting correlation information A discriminating unit 107 for discriminating the measurement site, and an informing unit 108 for informing information on the measurement site discriminated by the discriminating unit 107.
- the correlation information is data of the correction value of the impedance of the limb in the first embodiment of the present invention.
- Whole-body impedance measurement unit 101 controls whole-body impedance by controlling detection unit 11 in the whole-body measurement mode. Specifically, when a current is applied from the electrodes El l, E12 to the electrodes E21, E2 2 and the current is applied to the whole body of the subject, the potential difference between the electrodes E13, E14 and the electrodes E23, E24 (hereinafter referred to as ⁇ Controls to detect “whole body potential difference”). Based on the whole body potential difference thus detected, the whole body impedance Zw is calculated (measured). When measuring whole body impedance, it is preferable to short-circuit electrodes E11 and E12, electrodes E21 and E22, electrodes E13 and E14, and electrodes E23 and E24, respectively.
- the limb impedance measurement unit 102 controls the detection unit 11 and measures the limb impedance in each of the whole body measurement mode and the simple measurement mode.
- the whole-body measurement mode both the impedance between both hands Zh and the impedance between both feet Zf are measured.
- the impedance Zh between both hands is measured, and in the foot-simple measurement mode, the impedance Zf between both feet is measured.
- the two-limb impedance measuring unit 102 passes an electric current between the electrode E11 and the electrode E12, and the electrode is applied in a state where the electric current is applied between the both hands of the subject.
- Control is performed to detect the potential difference between E13 and electrode E14 (hereinafter referred to as “the potential difference between both hands”).
- the two-limb impedance measurement unit 102 specifically supplies the current between the electrodes E21 and E22 and applies the current between both feet of the subject. And control to detect the potential difference between electrode and electrode E24 (hereinafter referred to as “potential difference between both feet”).
- First body composition calculation section 103 and second body composition calculation section 105 each calculate, for example, a body fat percentage as the whole body composition.
- the body fat percentage (%? Haccho) is calculated using the following formula (1) Is used to calculate.
- the estimation formula of the (whole body) lean mass FFM is set in advance when using the whole body impedance Zw, when using the impedance between both hands Zh, and when using the impedance between both legs Zf.
- the lean mass of the subject is estimated by the following equation (2) that represents the relationship between each impedance, body information, and lean mass, which is determined in advance by correlation with a reference measured by MRI, for example. ⁇ Calculated using (4).
- the fat free mass estimated using the whole body impedance Zw is “FFM—w”
- the fat free mass estimated using the inter-hand impedance Zh is “FFM—h”
- the impedance between both feet Zf is used.
- the estimated lean mass is expressed as “FFM-f”.
- FFM_w a * H 2 / Zw + ⁇ * W + ⁇ ⁇ ' ⁇ (2)
- coefficients in the above estimation formula may differ depending on individual attributes (age and gender).
- the first body composition calculation unit 103 calculates the whole body impedance Zw measured by the whole body impedance measurement unit 101, the body information of the subject, and the above equations (1) and (2). Based on this, the whole body composition (body fat percentage) of the subject is calculated.
- the second body composition calculation unit 105 calculates the impedance between both hands after correction by the correction unit 104 (denoted as “Z”), the body information of the subject, and the above equation (1). Based on the equation (3), the body composition of the whole body of the subject is calculated.
- the second body composition calculation unit 105 calculates the impedance between both feet after correction by the correction unit 104 (denoted as “ ⁇ ”), the body information of the subject, the above equation (1), and ( 4) Calculate the whole body composition of the subject based on the formula.
- the body composition of the whole body is calculated based on each impedance value and body information.
- the body composition of the whole body is calculated based on the body information. May be.
- the correction unit 104 correlates the impedance of the limb measured by the limb impedance measurement unit 102 with the correlation information stored in the memory 14 (data of the correction value of the limb impedance). Correct based on
- the correlation setting unit 106 includes a third body composition calculating unit 1061 for calculating the body composition of the whole body based on the impedance of the two limbs measured by the two limb impedance measuring unit 102 in the whole body measurement mode, Correction for calculating the correction value for the impedance of the two limbs so that the whole body composition calculated by the body composition calculation unit 103 matches the whole body composition calculated by the third body composition calculation unit 1061.
- a value calculation unit 1062 is calculating the third body composition calculating unit 1061 for calculating the body composition of the whole body based on the impedance of the two limbs measured by the two limb impedance measuring unit 102 in the whole body measurement mode.
- the third-body composition calculating unit 1061 specifically determines the inter-hand impedance Zh based on the inter-hand potential difference detected during the detection of the whole-body potential difference, the subject's body information, the above formulas (1) and (3 Based on the above formula, the body composition of the whole body of the subject is calculated. Furthermore, based on the impedance Zf between both feet based on the potential difference between both feet detected at the time of detecting the whole body potential difference, the physical information of the subject, and the above formulas (1) and (4), Calculate the composition.
- the “when detecting the whole body potential difference” may be at least within a period of a series of measurement processes in the whole body measurement mode.
- the discriminating unit 107 discriminates, for example, whether or not the measurement mode is corresponding to the measurement site. In other words, it is determined whether the measurement mode for the deviation is executed among the whole body measurement mode, the hand simple measurement mode, and the foot simple measurement mode. A specific determination method will be described later.
- the notification unit 108 preferably notifies information about the determined measurement site together with information on the body composition of the whole body. Specifically, the notification unit 108 performs a process of displaying information on the measurement site on the display unit 15 together with information on the whole body composition.
- information on the measurement site for example, it is assumed that data representing each measurement site (for example, data such as characters, pictures, symbols) is stored in the memory 14 in advance. Then, the notification unit 108 reads out and displays data corresponding to the determined measurement site.
- the notification unit 108 displays information on the measurement site on the display unit 15, but the notification form is not limited to this.
- a sound output unit such as a speaker (not shown) Information on the fixed part may be output by voice.
- the notification unit 108 displays the body composition of the whole body on the display unit 15 and outputs, for example, the name of the measurement site by voice when the body composition of the whole body is displayed. Or, output a different melody for each measurement site.
- control unit 12 preferably determines a time zone (for example, a morning time zone, a day time zone, a night time zone, etc.) when each potential difference is detected. That is, in the whole body measurement mode, the control unit 12 determines the time zone for detecting the whole body potential difference based on the time measurement data from the timer 13. Further, in the simple measurement mode, the control unit 12 determines the time zone for detecting the potential difference between both hands or the potential difference between both feet based on the time measurement data from the timer 13. “When detecting a potential difference between both hands or a potential difference between both feet” may be at least within a period of a series of measurement processes in the simple measurement mode.
- a time zone for example, a morning time zone, a day time zone, a night time zone, etc.
- each functional block may be realized by executing software stored in the memory 14, or at least a part thereof may be realized by hardware.
- FIG. 4 is a diagram showing an example of the data structure of the memory 14 in the body composition monitor 100 according to the first embodiment of the present invention.
- the memory 14 stores a morning time zone storage area 141 for storing measurement results in the morning time zone, and a daytime zone for storing measurement results in the daytime zone.
- a storage area 142 and a night time zone storage area 143 for storing measurement results in the night time zone are included. Which of these storage areas stores the measurement result is determined according to the time zone determined by the control unit 12.
- the time zone range may be predetermined at the time of shipment, or may be set by the user according to his / her life cycle! / ⁇ . For example, it is possible to set “morning time zone” from 5:00 to 10:00, “daytime zone” from 10:00 to 16:00, and “night time zone” from 16:00 to 4 o'clock the next day.
- the measurement results are stored in the memory 14 in units of records Ra in a storage area corresponding to the time zone at the time of measurement.
- the record Ra (Ral, Ra2, ⁇ , Ran) includes date and time data T at the time of measurement (when each potential difference is detected), height input value data ⁇ as body information, and weight value data W as body information , Gender data S as physical information, age data A as physical information, measurement mode data M, measurement results Body composition data F, correlation information Rwh, and correlation information Rwf. These data are not limited to the storage format using the record Ra as long as they are stored in each area in association with each measurement.
- a storage area is provided in advance for each time zone, but a configuration in which a storage area for each time zone is not provided may be used.
- identification data indicating the time zone may be included in the record Ra and stored in the memory 14 in the order of measurement date and time.
- the measurement mode data M is information related to the measurement site, and specifically, identification information indicating which measurement mode is executed among the whole body measurement mode, the hand simple measurement mode, and the foot simple measurement mode. It is. For example, “0” is stored in the whole body measurement mode, “1” is stored in the hand-simple measurement mode, and “2” is stored in the foot simple measurement mode.
- correlation information Rwf stores data of correction value Zr ⁇ f of impedance between two legs Zf.
- the body composition of the whole body is measured in the whole body measurement mode, it is stored in all the data power memories 14 described above.
- the whole body composition is measured by the simple measurement mode, it is stored in the data memory 14 other than the weight W, the correlation information Rwh, and the correlation information Rwf.
- the whole body composition is measured in the simple leg measurement mode, it is stored in the data force memory 14 other than the correlation information Rwh and the correlation information Rwf.
- FIG. 5 is a flowchart showing a body composition measurement process executed by control unit 12 of body composition monitor 100 according to Embodiment 1 of the present invention.
- the process shown in the flowchart of FIG. 5 is stored in advance in the memory 14 as a program, and the function of the body composition measurement process is realized by the controller 12 reading and executing this program.
- the processing shown below is started in response to pressing of the measurement start switch 16.2, for example.
- determination unit 107 determines whether or not connector 18 and connector 31 are connected based on a signal from sensor 19 (step S22). That is, it is determined whether or not the upper limb unit 1 and the cable 3 are connected. If it is determined that connector 18 and connector 31 are connected (YES in step S22), the process proceeds to step S24. On the other hand, when it is determined that connector 18 and connector 31 are not connected (NO in step S22), the process proceeds to step S26.
- step S 24 the determination unit 107 determines whether or not the upper limb unit 1 is a force stored in the storage unit 20 based on a signal from the storage detection unit 21. If it is determined that the upper limb unit 1 is not stored in the storage unit 20 (NO in step S24), the determination unit 107 determines that the measurement site is the whole body and sets the subsequent measurement processing to the whole body measurement mode. (Step S28). If it is determined that the upper limb unit 1 is stored in the storage unit 20 (YES in step S24), it is determined that the measurement site is both feet, and the subsequent measurement process is set to the foot-simple measurement mode. (Step S30).
- step S26 the determination unit 107 determines whether or not the upper limb unit 1 is stored in the storage unit 20 based on the signal from the storage detection unit 21.
- the determination unit 107 determines that the measurement site is both hands, and the subsequent measurement processing is set to the simple measurement mode. Set (Step S32).
- the mode setting error measured site cannot be determined
- test subject can automatically determine the measurement site simply by taking the measurement posture of each measurement mode, and measurement according to each measurement mode is started.
- control unit 12 determines the time zone for measurement based on the output data from timer 13 (step S4).
- control unit 12 determines the mode determined in step S 2 (step S6). If it is the whole body measurement mode, the measurement process (whole body measurement process) in the whole body measurement mode is executed (step S12). Control in hand-simple measurement mode or foot-simple measurement mode The unit 12 determines whether or not there is correlation information in the same time zone set within the past, for example, 7 days (step S8). If it is determined that there is correlation information for the same time period set within the past 7 days (YES in step S8), the process proceeds to step S14 or step S16. That is, if the mode determined in step S2 is the hand-simple measurement mode, the process proceeds to step S14.
- step S2 determines whether the mode determined in step S2 is the foot simple measurement mode. If the mode determined in step S2 is the foot simple measurement mode, the process proceeds to step S16.
- the “same time zone” represents the same time zone as the time zone determined in step S4 (that is, the time zone at the time of the current measurement).
- step S14 a measurement process (manual measurement process) in the hand simple measurement mode is executed.
- step S16 a measurement process (foot measurement process) in the foot-simple measurement mode is executed.
- step S8 when it is determined that there is no correlation information in the same time period set within the past seven days (NO in step S8), the control unit 12 prompts measurement in the whole-body measurement mode ( Step S 10). Specifically, for example, the control unit 12 performs a process of displaying a message “Measure in whole body measurement mode” on the display unit 15.
- the mode that is, the measurement site is determined based on the signals from the sensor 19 and the storage detection unit 21, but the present invention is not limited to such a method.
- a button corresponding to each mode (measurement site) may be provided on the operation unit 16 to allow the subject to select which mode (force to measure at which measurement site) to execute.
- mode discrimination processing as shown in FIG. 7 may be performed.
- FIG. 7 is a flowchart showing another example of the mode discrimination process according to Embodiment 1 of the present invention.
- the determination unit 107 determines whether or not the foot electrode E20 is in contact with both feet of the subject (step S42). If it is determined that foot electrode E20 is in contact with both feet of the subject (YES in step S42), the process proceeds to step S44.
- step S42 if it is determined that the foot electrode E20 is in contact with both feet of the subject (step S42 [KOO! / DO NO]), the process proceeds to step S46.
- step S46 the determination unit 107 determines whether or not the hand electrode E10 is in contact with both hands of the subject. If it is determined that the hand electrode E10 is in contact with both hands of the subject (YES in step S46), the discriminator 107 discriminates that the measurement site is both hands and switches the subsequent measurement process to the hand-simple measurement mode Set (Step S52). On the other hand, if it is determined that the hand electrode E10 is in contact with both hands of the subject (NO in step S46), it is determined that the mode setting error (measurement site cannot be determined) (step S54). . The mode discrimination process is thus completed.
- FIG. 8 is a flowchart showing whole body measurement processing in Embodiment 1 of the present invention.
- control unit 12 receives input of physical information (height, age, gender) from the subject (step S102).
- the control unit 12 measures the weight by the weight measurement unit 22 (step S104).
- the whole body impedance measurement unit 101 measures the whole body impedance Zw of the subject (step S106).
- the first body composition calculation unit 103 calculates the body composition of the whole body, that is, the body fat percentage (represented as “% FAT ⁇ w”) based on the whole body impedance Zw measured in step S106 (step S108). ). More specifically, first body composition calculation section 103 first calculates whole body lean mass (FFM-w) using whole body impedance Zw, subject's body information, and estimation equation (2). To do. Thereafter, the body fat percentage (% 8 T ⁇ w) is calculated using the formula (1).
- the body fat percentage is calculated directly based on the force whole body impedance Zw and the body information of the subject, after calculating the fat free mass and then calculating the body fat percentage. It may be. Alternatively, only the lean mass may be calculated.
- the two-limb impedance measuring unit 102 measures the inter-terminal impedance Zh of the subject (step S110). Further, the impedance Zf between both feet of the subject is measured (S112). Next, correlation setting section 106 performs first correlation information setting processing (step S114) and second correlation information setting processing (step S116). Details of these setting processes will be described later.
- control unit 12 writes measurement results, correlation information, and the like into the memory 14 corresponding to the time period determined in step S4 (step S118). Further, the notification unit 108 displays the measurement result (body fat percentage) and information on the measurement site on the display unit 15 (step S120). An example of the display screen in step S 120 is shown in FIG.
- the whole body fat percentage calculated in step S108 is displayed in the display region D1, and the display region D2 is, for example, “ The characters “both hands and feet” are displayed.
- the subject can recognize that the body fat percentage is calculated based on the detection result of the potential difference in the whole body (between both hands and both feet). This means that the subject has the most reliable body fat percentage. Can be grasped.
- the information on the measurement site itself is displayed as the information on the measurement site, but information indicating the mode may be displayed as “whole body measurement mode” t. Even in this case, the subject can similarly know that the body fat percentage has been calculated based on the detection result of the whole body potential difference.
- advice information regarding the evaluation of the calculation result of the body fat percentage may be displayed.
- a plurality of blocks are displayed in a predetermined area, and are associated with odd-numbered blocks step by step from the left side, with a small number (1), a small number (2), a standard (3), and a small number.
- (4) and many, (5), and letters and numbers are displayed.
- the subject can be advised to evaluate the calculation result by lighting up (filled display) up to the block corresponding to the evaluation of the leftmost block force calculation result.
- the blocks from "Small, (1)” to "Slightly more !, (4)" are lit! , Ru
- the subject can grasp that the body fat percentage is slightly higher than the standard level.
- the evaluation of the calculation result can be performed using, for example, an evaluation table (correspondence table between body fat percentage value and evaluation) prepared in advance for each age and sex.
- the advice information displayed is not limited to the mode shown in FIG. 9, but may be a message such as “Let's exercise a little more.”
- FIG. 10 is a flowchart showing the first correlation information setting process in Embodiment 1 of the present invention.
- third body composition calculating section 1061 calculates the body composition of the whole body, that is, the body fat percentage (represented as “% FAT ⁇ h”) based on the impedance between both hands Zh (step S2 02). More specifically, the third body composition calculation unit 1061 first calculates the total body lean mass (FFM-h) using the inter-hand impedance Zh, the subject's physical information, and the estimation equation (3). calculate. Thereafter, the body fat percentage (° / ⁇ 8-h) is calculated. In this case as well, the body fat percentage is calculated after calculating the lean mass, but it is not limited to such a calculation method. Next, the correlation setting unit 106 reads the data of the correction value Zr_h, which is the correlation information immediately before the same time zone, in the memory 14 (step S 204).
- the correlation setting unit 106 calculates the difference between the body fat percentage calculated in step S202 / ( ⁇ Haccho-h and the body fat percentage% calculated in step S108. It is determined whether or not the predetermined threshold V and value Th—h are exceeded! / (Step S206) If the threshold! /, Value Th—h is exceeded (YES in step S206) ), Go to step S208, but if it is determined that the threshold! /, The value Th—h is exceeded! / ⁇ (NO in step S206), go to step S212.
- the value Th ⁇ h is preferably about 0.5% because the difference due to daily fluctuation is about 1%.
- step S212 the current correction value Zr—ha is set to “0”.
- step S214 the correction value Zr-h is updated. Specifically, for example, a correction value Zr- h immediately before read out in stearyl-up S204, the present correction value Zr- ha averaging (e.g., (Zr- h + Zr- h a ) Z2) to Thus, a new correction value Zr-h is calculated.
- the first correlation information setting process is thus completed.
- FIG. 11 is a flowchart showing the second correlation information setting process in the first embodiment of the present invention.
- third body composition calculation unit 106 calculates the whole body composition, that is, the body fat percentage (represented as “% FAT_f”) based on impedance between both feet Zf (step S222). ). More specifically, the third body composition calculation unit 106 first calculates the whole body lean mass (FFM_f) using the impedance between the legs Zf, the body information of the subject, and the estimation formula (4). After that, the body fat percentage (% Haccho_ is calculated using equation (1). It is assumed that the body fat percentage is calculated after calculating, but is not limited to such a calculation method.
- FAM_f whole body lean mass
- correlation setting section 106 reads data of correction value Zr_f, which is correlation information immediately before the same time zone, in memory 14 (step S224).
- the correlation setting unit 106 calculates a difference value between the body fat percentage% 8-c-f calculated in step S222 and the body fat percentage% 8-c-w calculated in step S108. It is determined whether or not the threshold V exceeds the value Th—f! / (Step S226). If it is determined that the threshold value Th / f is exceeded (YES in step S226), the process proceeds to step S228. On the other hand, if it is determined that the threshold value! / Exceeds the value Th—f! /, N! / (NO in step S226), the process proceeds to step S232.
- This threshold Th ⁇ f is also preferably about 0.5%, for example, because the difference due to daily fluctuation is about 1%.
- correction value calculation section 1062 calculates impedance Zf ⁇ such that body fat percentage%? Chome-f and body fat percentage% FAT_w match.
- the difference between the impedance Zfa calculated in step S228 and the impedance between both feet Zf measured in step SI10 is calculated as the current correction value Zr-f ⁇ (step S230).
- step S232 the current correction value Zr-fa is set to "0".
- step S234 the correction value Zr-f is updated. Specifically, for example, a correction value Zr- f immediately before read out in Sutetsu flop S224, present correction value Zr- and fa averaging (for example, (Zr- f + Zr- f a ) Z2) As a result, a new correction value Zr-f is calculated.
- the present embodiment is not limited to such a method in which the correction value is updated by averaging the previous correction value and the current correction value. For example, all past correction values may be read and averaged. Alternatively, correction values within a predetermined period may be read and averaged. Or just calculate the current correction value without averaging! /. [0106] Also, the body fat percentage used in steps S206 and S208 in the first correlation information setting process and steps S226 and S228 in the second correlation information setting process ° / ( ⁇ Haccho-w is the whole body measurement mode. It may be an average value of a measured value at a certain period.
- FIG. 12 is a flowchart showing the hand measurement process in the first embodiment of the present invention.
- control unit 12 accepts input of physical information (height, age, sex) of the subject (step S302).
- the control unit 12 reads the previous weight from the memory 14 (step S304). Thereby, the labor of inputting the weight value by the subject can be saved.
- the weight data read out here may be data immediately before the same time zone, or simply data immediately before (regardless of the time zone).
- the two-limb impedance measurement unit 102 measures the impedance between two hands Zh (step S306).
- the control unit 12 reads from the memory 14 the correction value ZR-h, which is the correlation information immediately before (most recent) in the same time zone (step S308).
- a first body composition calculation process is executed (step S310).
- the specific process of the first body composition calculation process in step S310 will be described with reference to FIG.
- FIG. 13 is a flowchart showing the first body composition calculation process in the first embodiment of the present invention.
- correction unit 104 corrects both-hand impedance Zh measured in step S306 (step S402). Specifically, the corrected impedance Zr is calculated by adding the correction value Zr-h read as the correlation information in step S308 to the impedance between both hands Zh.
- the second body composition calculation unit 105 calculates the body composition of the whole body, that is, the body fat percentage (° / ⁇ haccho_11) based on the corrected impedance Z (step S404). More specifically, the body fat percentage is calculated based on the impedance Zh ′, the body information of the subject, and the above formulas (1) and (3).
- the control unit 12 writes the measurement results and the like into the memory 14 corresponding to the time period determined in step S4 (Ste S31 2).
- the notification unit 108 displays the measurement result (body fat percentage) and information on the measurement site on the display unit 15 (step S314).
- Example of display screen in step S314 Figure 14 shows.
- the body fat percentage of the whole body calculated in step S404 is displayed in the display area D1, and the display area D2 is, for example, information on the measurement site.
- the characters “right hand left hand” are displayed.
- the subject can recognize that the body fat percentage is calculated based on the detection result of the potential difference between both hands (the right hand and the left hand).
- the information on the measurement site itself is displayed as the information on the measurement site, but information representing the mode may be displayed such as “hand-simple measurement mode”. Even in this case, the subject can similarly know that the body fat percentage has been calculated based on the detection result of the potential difference between both hands.
- advice information on the evaluation of the calculation result of the body fat percentage may be displayed.
- FIG. 15 is a flowchart showing foot measurement processing according to Embodiment 1 of the present invention.
- control unit 12 accepts input of physical information (height, age, sex) of the subject (step S502). Next, the control unit 12 measures the body weight by the weight measurement unit 22 (step S504).
- the two-limb impedance measurement unit 102 measures the impedance Zf between both feet (step S506). Subsequently, the control unit 12 reads from the memory 14 the correction value ZR-f that is the correlation information immediately before the same time period (step S508). Subsequently, a second body composition calculation process is executed (step S510). Here, the specific process of the second body composition calculation process in step S510 will be described with reference to FIG.
- FIG. 16 is a flowchart showing a second body composition calculation process in the first embodiment of the present invention.
- correction unit 104 corrects impedance between both feet Zf measured in step S506 (step S602). Specifically, the corrected impedance Z is calculated by adding the correction value Zr-f read out as the correlation information in step S508 to the impedance Zf between both feet.
- the second body composition calculation unit 105 calculates the whole body based on the corrected impedance.
- Composition ie, body fat percentage (° / ( ⁇ Haccho_ is calculated (step S604). More specifically, based on the impedance, the physical information of the subject, and the above formulas (1) and (4), The body fat percentage is calculated.
- control unit 12 writes measurement results and the like into memory 14 corresponding to the time zone (step S512).
- the notification unit 108 displays the measurement result (body fat percentage) and information on the measurement site on the display unit 15 (step S514).
- An example of the display screen in step S514 is shown in FIG.
- the body fat percentage of the whole body calculated in step S604 is displayed in the display area D1, and for example, information on the measurement site is displayed in the display area D2.
- the characters “right foot left foot” are displayed.
- the subject can recognize that the body fat percentage is calculated based on the detection result of the potential difference between both feet (between the right foot and the left foot).
- the information on the measurement site itself is displayed as the information on the measurement site, but information indicating the mode may be displayed such as “foot-simple measurement mode”.
- the subject can similarly know that the body fat percentage has been calculated based on the detection result of the potential difference between both feet.
- advice information on the evaluation of the calculation result of the body fat percentage may be displayed.
- the correction value for the impedance of the two limbs is set as the correlation information. That is, the body composition of the whole body based on the whole body impedance calculated in the whole body measurement mode and the above estimation equation (2), The correction value of the impedance of the limb that matches the body composition is set as the correlation information. By doing so, it is possible to calculate a reliable whole body composition corresponding to the user (subject) even in the simple measurement mode.
- the correlation information is set for each time zone at the time of measurement, the influence of daily fluctuation can be absorbed.
- the body composition of the whole body based on the whole body impedance and the estimation equation (2) matches the body composition of the whole body based on the impedance of the two limbs and the estimation equations (3) and (4).
- the correction value for the impedance of the limb is set, even in the simple measurement mode, it is as accurate as the body composition of the whole body calculated based on the whole body impedance and the estimation formula (2).
- Body composition values can be estimated. Thus, even if the subject measures the body composition of the whole body in the simple measurement mode, the subject can also confirm the change in the body composition of the whole body without worrying about the effects of diurnal variation.
- the whole body measurement mode is used. It was decided to give a notice to encourage the use of However, it is not limited to such a notification method. For example, it may be notified that use in the simple measurement mode is prohibited. Alternatively, the body composition of the whole body may be calculated without performing the correction process, and the fact may be notified (the correction process is not applicable).
- the single limb measurement mode when a mode name that simply measures the body composition of the whole body using the impedance of the two limbs is called the “single limb measurement mode”, it informs that the measurement result is based on the single limb measurement mode. You can do it.
- the presence / absence of correlation information in the same time period set within a predetermined period is determined, but simply the presence / absence of correlation information in the same time period is determined. As a judgment, too.
- the physical information is input every time measurement is performed.
- the physical information once input may be stored in the memory 14, and the subsequent input may be omitted. .
- the correlation information is set for each time zone, but may be set regardless of the time zone. Alternatively, correlation information may be set for each measurement condition other than the time zone (before movement, after movement, etc.).
- the correction value of the impedance of the two limbs is obtained based on the body fat percentage% 8-c-w and the body fat percentage% FAT- h, f.
- the lean mass FFM_w and the lean mass FFM_h, f may be used as a reference.
- the correction value of the body composition (eg, lean mass) of the two limbs may be obtained as correlation information. Or, you can obtain the correction value of the potential difference between the two limbs as correlation information!
- correlation information is stored in association with a time zone, and correlation information corresponding to a time zone determined in the simple measurement mode is read out.
- the correlation information may be stored in association with the time, and the correlation information corresponding to the time zone determined in the simple measurement mode may be read out.
- information on the measurement site is notified even if the measurement site is a misaligned body part. However, if the measurement site is a body part other than the whole body (measurement Information on the measurement site may be notified only when the site is a bilimb.
- the simple measurement mode includes both the hand simple measurement mode and the foot simple measurement mode, but either one may be used.
- the “whole body measurement mode” is simply established if the connector 18 and the connector 31 are connected, and “hand-simple easy” is not established. “Measurement mode” may be determined.
- the foot-simple measurement mode it may be determined that the upper limb unit 1 is stored in the storage unit 20 as the “foot simple measurement mode”, and if not stored as the “whole body measurement mode”. .
- a mode for measuring the body composition based on the impedance between the right hand and the left foot may be further provided.
- FIG. 18 is a flowchart showing the memory read-out display process in the modification of the first embodiment of the present invention. Note that the processing shown in the flowchart of FIG. Is stored in the memory 14, and when the control unit 12 reads out and executes this program, the function of memory reading 'display processing is realized. Further, the processing shown below is started in response to pressing of a memory switch (not shown) included in the operation unit 16 for accepting an instruction to display past measurement data, for example.
- control unit 12 displays a site selection menu on display unit 15 (step S902).
- the display unit 15 displays buttons representing the whole body, both hands and both feet.
- the control unit 12 Upon receiving the instruction, the control unit 12 reads the body composition corresponding to the selected measurement site from the memory 14 (step S906). Then, the notification unit 108 displays the read measurement value in a graph on the display unit 15 and displays information related to the measurement site (step S908) o Specifically, in step S906, the control unit 12 The body composition data F associated with the measurement mode data M indicating the selected measurement site is read, for example, a predetermined number of times. In step S908, the control unit 12 plots the read measurement value in association with the time (how many times ago), thereby displaying the information of the measurement value according to the time change. An example of the display screen in step S908 is shown in FIG.
- display unit 15 displays a graph representing the trajectory (transition) of the measured value with body fat percentage (unit:%) on the vertical axis and time on the horizontal axis.
- the subject can recognize that it is a locus of body fat percentage calculated based on the detection result of the potential difference in both hands (between right hand and left hand), and confuse the measurement site (measurement mode). Can be prevented.
- the information on the measurement site itself is displayed as the information on the measurement site, but information indicating the mode may be displayed as “hand-simple measurement mode”.
- the subject can know that the body fat percentage trajectory is calculated based on the detection result of the potential difference between both hands.
- a memory switch (not shown) is pressed (for example, After displaying the body composition, a graph representing the locus of past measurement values corresponding to each measurement site may be displayed.
- a memory switch may be provided for each measurement site, and the measurement value may be read and displayed according to the selected memory switch.
- the trajectory of past measurement values is displayed in a graph.
- the measurement unit and past measurement values are displayed in association with each other (notified), the graph display can be improved. It is not limited. For example, each time a memory switch (not shown) is pressed, the measurement values corresponding to the part selected in step S904 may be read one by one and displayed together with information about the measurement part. .
- Embodiment 1 the correction value of the impedance of the two limbs is used as the correlation information.
- Embodiment 2 the correlation between the whole body composition calculated based on the whole body impedance and the whole body composition calculated based on the impedance of the two limbs is used as correlation information.
- the appearance and nodeware configuration of the body composition meter in the second embodiment are the same as those of the body composition meter 100 in the first embodiment. Therefore, here, the description will be made using the symbols shown in FIGS.
- control unit 12A includes whole body impedance measurement unit 101, limb impedance measurement unit 102, first body composition calculation unit 103, determination unit 107, and notification unit. Including 108. Further, the control unit 12A replaces the correction unit 104, the second body composition calculation unit 105, and the correlation setting unit 106 in Embodiment 1 with a second body composition calculation unit 204, a correction unit 205, and a correlation calculation unit 206. including.
- the second body composition calculating unit 204 calculates the body composition of the whole body based on the impedance of the two limbs measured by the limb impedance measuring unit 102.
- the correction unit 205 calculates the whole body composition calculated by the second body composition calculation unit 204 using the correlation information (based on the whole body impedance calculated based on the whole body impedance). The correction is based on the correlation between the body composition and the body composition of the whole body calculated based on the impedance of the limbs.
- Correlation calculation section 206 correlates the whole body composition calculated by second body composition calculation section 204 with the whole body composition calculated by first body composition calculation section 103 in the whole body measurement mode. Calculate the relationship. Specifically, the correlation calculation unit 206 calculates the correlation between the lean mass FFM-w and the lean mass FFM-h, f, for example. A detailed calculation method will be described later.
- FIG. 21 is a diagram showing an example of the data structure of the memory 14 in the body composition analyzer 100 according to the second embodiment of the present invention.
- memory 14 stores morning time zone storage area 141 for storing measurement results in the morning time zone, and measurement results in the daytime zone. And a night time zone storage area 143 for storing measurement results in the night time zone.
- the body composition data F of the whole body is the final measurement result of the body composition as in the first embodiment, and the data on the body fat percentage calculated by the first body composition calculation unit 103 or the correction. This is data on body fat percentage after correction by part 205. That is, if the measurement mode data M is “0” (whole body measurement mode), it is the calculation result data by the first body composition calculation unit 103, and the measurement mode data M is “1” or “2” (simple measurement mode). If so, it is the calculation result data by the correction unit 205.
- Whole body lean body mass data Fw is calculated by the first body composition calculation unit 103 when the measurement mode data M is "0" (whole body measurement mode). This is the data of fat free mass FFM_w calculated based on this.
- the lean body mass FFM_w is calculated when calculating the body fat percentage in step S 10 8.
- Whole body lean mass data Fh is calculated based on both-hand impedance Zh and estimation equation (3) by the second body composition calculation unit 204 when the measurement mode data M is “0” (whole body measurement mode). This is the data of fat free mass FFM—h.
- the correlation information Rwh and the correlation information Rwf store data indicating correlation coefficients ah, bh and correlation coefficients af, bf, which will be described later, respectively.
- FIG. 22 is a flow chart showing the first correlation information setting process in the second embodiment of the present invention.
- second body composition calculation section 204 calculates a whole body lean mass (FFM_h) based on both-hand impedance Zh (step S702).
- the control unit 12A determines whether or not the measurement in the whole body measurement mode has been completed in the same time zone (S704). More specifically, it is determined whether or not there is a record Rb whose mode data M is “0” among the records Rb stored in the same time zone. If determined to have been measured (YES in S704), the process proceeds to S706. On the other hand, if it is determined that the measurement has not been completed (NO in S704), the process is terminated. [0159] In step S706, the correlation calculation unit 206 stores, from the memory 14, data of the whole body lean mass (FFM—w) data Fw and whole body lean mass (FFM—h) in the same time zone. Read all data Fh.
- the correlation calculation unit 206 calculates the correlation between the whole body lean mass FFM-w and the whole body lean mass FF M-h (step S708). More specifically, based on the lean mass calculated in steps S108 and S702 and the respective lean mass read in step S706, a correlation that satisfies the following correlation equation: The numbers ah and bh are calculated.
- the calculation of the correlation coefficient can be realized from each data by using, for example, the least square method.
- FIG. 23 is a flow chart showing the second correlation information setting process in the second embodiment of the present invention.
- second body composition calculation section 204 calculates the lean body mass (FFM ⁇ f) of the whole body based on impedance between both feet Zf (step S722).
- the control unit 12A determines whether or not the measurement in the whole body measurement mode has been completed in the same time zone (S724). If determined to have been measured (YES in S724), proceed to S726. On the other hand, if it is determined that the measurement has not been completed (NO in S724), this process ends.
- step S726 correlation calculation section 206 obtains all data Fw of whole body lean mass (FFM-w) and all data Ff of whole body lean mass (FFM-f) in the same time period.
- the correlation calculation unit 206 calculates the correlation between the whole body lean mass (FFM-w) and the whole body lean mass (FFM_f) (step S728). More specifically, based on the lean mass calculated in steps S108 and S722, respectively, and the respective lean mass read in step S726, the phases satisfying the following correlation equation are satisfied. Calculate relational numbers af and bf.
- step S118 of Fig. 8 by performing the first and second correlation information setting processes as described above, in step S118 of Fig. 8, the correlation coefficients ah and bh are used as the correlation information Rwh. Correlation coefficients af and bf are stored as correlation information Rwf. Further, the body fat percentage% Haccho-W calculated in step S108 is stored as the body fat percentage data F. Step S1
- the fat free mass FFM—w, FFM_h, and FFM—f calculated in 08, S702, and S722 are stored as fat free mass data Fw, Fh, and Ff, respectively.
- FIG. 24 is a flowchart showing the first body composition calculation process in the second embodiment of the present invention.
- the correlation coefficients ah and bh immediately before the same time period are read in step S308.
- second body yarn and composition calculating unit 204 calculates a whole body lean mass FFM_h based on the two-hand impedance Zh measured in step S306 (step S422). More specifically, the lean mass is calculated based on the impedance between both hands Zh, the physical information of the subject, and the above equation (3).
- the correction unit 205 corrects the whole body lean mass FFM-h calculated in step S422 based on the correlation coefficients ah and bh read as correlation information in step S308 (step S308). S424). More specifically, the whole body lean mass FF after correction is calculated by the following formula:
- step S424 body fat percentage% 8-h is calculated by substituting the corrected lean body mass FFM- into the above equation (1).
- the body fat percentage ° / ( ⁇ Haccho-h calculated in step S424 is stored in the memory 14 as whole body composition data F in step S312.
- FIG. 25 is a flowchart showing the second body composition calculation process in the second embodiment of the present invention.
- the second body yarn composition calculation unit 204 calculates the total body lean mass FFM-f based on the impedance between both feet Zf measured in step S506 (step S622). . More specifically, the lean mass is calculated based on the impedance Zf between both legs, the physical information of the subject, and the above equation (4).
- the correction unit 205 corrects the whole body lean mass FFM-f calculated in step S622 based on the correlation coefficients af and bf read as correlation information in step S508 (step S624). ). More specifically, the corrected whole body lean mass FFM- ⁇ is calculated by the following equation.
- step S624 the fat free mass% Fc-f is calculated by substituting the corrected lean mass FFM- ⁇ into the above equation (1).
- the body fat percentage calculated in step S624. / ( ⁇ Haccho-f is stored in the memory 14 as whole body composition data F in step S512, and presented to the subject in step S514.
- Embodiment 2 of the present invention in the whole body measurement mode, the body composition of the whole body based on the whole body impedance and the whole body yarn based on the impedance of the two limbs are used as the correlation information. Set the correlation with the product. By doing so, it is possible to calculate a reliable whole body composition corresponding to the subject even in the simple measurement mode.
- steps S706 and S726 all of the lean mass data Fw and the lean mass data Fh and Ff stored in the storage area in the same time zone are read. For example, it is possible to read data within a predetermined period in the past. Alternatively, all the lean mass data Fw, Fh, Ff within a predetermined period may be further included in the record Rb. By doing so, it is only necessary to read the data immediately before the same time period.
- the correction value of the impedance of the two limbs is used as the correlation information.
- the correlation information is the correlation between the whole body composition calculated based on the whole body impedance and the whole body composition calculated based on the two-limb impedance.
- Embodiment 3 the correlation between the whole body impedance and the impedance of the two limbs is used as the correlation information.
- the appearance and the nodeware configuration of the body composition monitor in the third embodiment are the same as those of body composition monitor 100 in the first and second embodiments. Therefore, here, the description will be made using the reference numerals shown in FIGS.
- FIG. 26 is a functional block diagram of body composition monitor 100 according to Embodiment 3 of the present invention.
- the control unit in the third embodiment is different from the functions of the control unit 12 in the first embodiment and the control unit 12A in the second embodiment. Therefore, in this embodiment, it is referred to as a control unit 12B.
- the correction unit 304 calculates the impedance of the limb measured by the limb impedance measurement unit 102 using the correlation information stored in the memory 14 (correlation between the whole body impedance and the limb impedance). Correction).
- Correlation calculation section 306 correlates the whole body impedance measured by whole body impedance measurement section 101 with the limb impedance measured by two limb impedance measurement section 102 in the whole body measurement mode. Is calculated.
- FIG. 27 is a diagram showing an example of the data structure of the memory 14 in the body composition monitor 100 according to Embodiment 3 of the present invention.
- memory 14 stores morning time zone storage area 141 for storing measurement results in the morning time zone, and measurement results in the daytime zone.
- a night time zone storage area 143 for storing measurement results in the night time zone.
- the body composition data F of the whole body is the final measurement result of the body composition as in the first embodiment, and the body calculated by the first body composition calculation unit 103 or the second body composition calculation unit 105. This is fat percentage data.
- Data Iw is data indicating whole body impedance Zw measured by whole body impedance measurement unit 101 when measurement mode data M is “0” (whole body measurement mode).
- the data Ih is data indicating the inter-hand impedance Zh measured by the two-limb impedance measuring unit 102 when the measurement mode data M is “0” (whole body measurement mode).
- the data If is data indicating the impedance Zf between both feet measured by the two-limb impedance measuring unit 102 when the measurement mode data M is “0” (whole body measurement mode).
- correlation information Rwh and correlation information Rwf store data indicating correlation coefficients ch and dh and correlation coefficients cf and df, which will be described later, respectively.
- FIG. 28 is a flow chart showing the first correlation information setting process in the third embodiment of the present invention.
- control unit 12B determines whether or not the measurement in the whole-body measurement mode is completed in the same time zone (S802). More specifically, it is determined whether or not there is a record Rc whose measurement mode data M indicates the whole body measurement mode among the records Rc stored in the storage area of the same time zone. If it is determined that the measurement has been completed (YES in S802), the process proceeds to S804. On the other hand, if it is determined that the measurement has not been completed (NO in S802), the process ends. In step S804, correlation calculation section 306 reads all data Iw of whole body impedance Zw and data Ih of impedance between both hands Zh in the same time zone from memory 14.
- the correlation calculation unit 206 is based on the whole body impedance Zw and the inter-hand impedance Zh measured in steps S106 and S110, respectively, and the whole body impedance Zw and impedance Zh read in step S804. Therefore, correlation coefficients ch and dh that satisfy the following correlation equation are calculated (S806).
- FIG. 29 is a flowchart showing the second correlation information setting process in the third embodiment of the present invention.
- the correlation calculation unit 206 is based on the whole body impedance Zw and the inter-foot impedance Zf measured in steps S106 and S110, respectively, and the whole body impedance Zw and impedance Zf read in step S824. Correlation coefficients cf and df satisfying the following correlation equation are calculated (S826).
- the first and second correlation information setting processes as described above are performed, so that in step S118, correlation coefficients ch and dh are used as correlation information Rwh.
- the relation numbers cf and df are stored as correlation information Rwf.
- the body fat percentage% Haccho-W calculated in step S108 is stored as the body fat percentage data F.
- the impedances Zw, Zh, Zf calculated in steps S106, S110, S112 are stored as data Iw, Ih, If, respectively.
- FIG. 30 is a flowchart showing the first body composition calculation process in the third embodiment of the present invention.
- the third embodiment it is assumed that the immediately preceding correlation coefficient ch, dh in the same time zone is read in step S308.
- corrector 304 corrects both-hands impedance Z h measured in step S306 based on correlation coefficients ch and dh read as correlation information in step S308 (step S306). S442). More specifically, the corrected impedance Z is calculated using the following equation.
- the second body composition calculation unit 105 calculates the whole body composition (% FAT_h) based on the corrected impedance ⁇ (step S444). More specifically, based on the corrected impedance Z, the subject's physical information, and the above formulas (1) and (2), the value of “Z” is set to “Zw” in the estimation formula (2). Substitution), the body fat percentage is calculated.
- correction section 304 corrects impedance between two feet Zf measured in step S 506 based on correlation coefficients cf, df read as correlation information in step S508 (step S508). S642). More specifically, the corrected impedance ⁇ is calculated using the following equation.
- the second body composition calculation unit 105 calculates the whole body based on the corrected impedance ⁇ .
- the composition (% FAT—f) is calculated (step S444). More specifically, based on the corrected impedance ⁇ , the subject's physical information, and the above equations (1) and (2) (the value of “ ⁇ ” is set to “Zw” in the estimation equation (2)). Substitution), the body fat percentage is calculated.
- the body fat percentage ° / ( ⁇ 8-f calculated in step S644 is stored in the memory 14 as whole body composition data F in step S512, and in step S514. Then, it is presented to the subject.
- the correlation between the whole body impedance and the impedance of the two limbs is set as the correlation information. By doing so, it is possible to calculate a reliable whole body composition corresponding to the subject even in the simple measurement mode.
- steps S804 and S824 all of the whole body impedance data Iw and the two limb impedance data Ih, If stored in the storage area of the same time zone are read. For example, it is possible to read out data within a predetermined period in the past. Alternatively, all impedance data Iw, Ih, If within a predetermined period may be further included in the record Rb. By doing so, it is only necessary to read the data immediately before the same time period.
- the correlation between the whole body impedance and the limb impedance is set as the correlation information.
- the correlation between the whole body potential difference and the limb potential difference is set as the correlation information. You can do it.
- the body composition meter 100 according to Embodiments 1 to 3 described above is the force described as calculating the body fat percentage as the body composition of the whole body. Other biological information such as rate may be calculated.
- the body composition measurement method performed by the body composition analyzer of the present invention can also be provided as a program.
- a program can be recorded on an optical medium such as a CD-ROM (Compact Disk-ROM) or a computer-readable recording medium such as a memory card and provided as a program product.
- the program can be provided by downloading via the network.
- the provided program product is installed in the program storage such as a hard disk. To be executed.
- the program product includes the program itself and a recording medium on which the program is recorded.
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Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007800022704A CN101370428B (zh) | 2006-01-18 | 2007-01-11 | 能够识别用于计算组成成分的身体部位的体成分仪 |
| EP07706587A EP1977691A4 (en) | 2006-01-18 | 2007-01-11 | BODY COMPOSITION MEASURING DEVICE FOR RECOGNIZING PARTS OF THE BODY USED IN CALCULATING COMPOSITION COMPONENTS |
| US12/096,313 US20090131812A1 (en) | 2006-01-18 | 2007-01-11 | Body composition measuring instrument for recognizing body site used in calculation of composition component |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006010262A JP4529913B2 (ja) | 2006-01-18 | 2006-01-18 | 体組成計 |
| JP2006-010262 | 2006-01-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2007083563A1 true WO2007083563A1 (ja) | 2007-07-26 |
Family
ID=38287516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2007/050240 Ceased WO2007083563A1 (ja) | 2006-01-18 | 2007-01-11 | 組成成分の算出に用いられた身体部位を認識できる体組成計 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20090131812A1 (ja) |
| EP (1) | EP1977691A4 (ja) |
| JP (1) | JP4529913B2 (ja) |
| KR (1) | KR100996478B1 (ja) |
| CN (1) | CN101370428B (ja) |
| RU (1) | RU2396901C2 (ja) |
| WO (1) | WO2007083563A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120004570A1 (en) * | 2009-02-20 | 2012-01-05 | Omron Healthcare Co., Ltd. | Biological information measurement device, biological information measurement method, and body composition measurement device |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5320691B2 (ja) * | 2007-06-11 | 2013-10-23 | オムロンヘルスケア株式会社 | 体重計 |
| DE102008051347B4 (de) * | 2008-10-15 | 2018-12-06 | Fresenius Medical Care Deutschland Gmbh | Verfahren zur Bestimmung eines korrigierten Volumenkompartiments eines amputierten Patienten, Vorrichtung zur Durchführung des Verfahrens und Computerprogrammprodukt |
| JP5239999B2 (ja) * | 2009-03-27 | 2013-07-17 | オムロンヘルスケア株式会社 | 体組成計、測定結果出力方法および測定結果出力プログラム |
| EP2305111A1 (de) | 2009-10-01 | 2011-04-06 | seca ag | Bioimpedanzmessvorrichtung und -verfahren |
| JP5443297B2 (ja) * | 2010-07-30 | 2014-03-19 | パナソニック株式会社 | 生体情報測定装置 |
| KR101052202B1 (ko) * | 2010-07-30 | 2011-07-29 | (주) 엘비스가버 | 신체 균형 보정시스템 및 그 제어방법 |
| JP2012029930A (ja) * | 2010-07-30 | 2012-02-16 | Panasonic Electric Works Co Ltd | 生体情報測定装置 |
| US10842436B2 (en) | 2015-02-26 | 2020-11-24 | Samsung Electronics Co., Ltd. | Electronic device and body composition measuring method of electronic device capable of automatically recognizing body part to be measured |
| KR102348489B1 (ko) * | 2015-02-26 | 2022-01-07 | 삼성전자주식회사 | 전자 장치 및 전자 장치에서 신체 측정 부위 자동 인식 가능한 체성분 측정 방법 |
| AU2016354667B2 (en) * | 2015-11-10 | 2022-07-14 | Impedimed Limited | Impedance measurement system |
| JP2025139895A (ja) * | 2024-03-13 | 2025-09-29 | オムロンヘルスケア株式会社 | 生体情報測定装置、生体情報測定方法及びプログラム |
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- 2007-01-11 KR KR1020087014480A patent/KR100996478B1/ko not_active Expired - Fee Related
- 2007-01-11 EP EP07706587A patent/EP1977691A4/en not_active Withdrawn
- 2007-01-11 US US12/096,313 patent/US20090131812A1/en not_active Abandoned
- 2007-01-11 CN CN2007800022704A patent/CN101370428B/zh not_active Expired - Fee Related
- 2007-01-11 WO PCT/JP2007/050240 patent/WO2007083563A1/ja not_active Ceased
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| JP2001178696A (ja) * | 1999-10-12 | 2001-07-03 | Tanita Corp | 生体測定装置 |
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| US8554316B2 (en) * | 2009-02-20 | 2013-10-08 | Omron Healthcare Co., Ltd. | Biological information measurement device, biological information measurement method, and body composition measurement device |
Also Published As
| Publication number | Publication date |
|---|---|
| US20090131812A1 (en) | 2009-05-21 |
| CN101370428B (zh) | 2012-04-25 |
| RU2008133572A (ru) | 2010-02-27 |
| EP1977691A4 (en) | 2010-09-29 |
| RU2396901C2 (ru) | 2010-08-20 |
| EP1977691A1 (en) | 2008-10-08 |
| JP2007190142A (ja) | 2007-08-02 |
| CN101370428A (zh) | 2009-02-18 |
| JP4529913B2 (ja) | 2010-08-25 |
| KR20080075527A (ko) | 2008-08-18 |
| KR100996478B1 (ko) | 2010-11-24 |
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