JPH0767982A - Training device - Google Patents

Abstract

PURPOSE:To support effective training so as to acquire a correct form by making a trainee perceive activity of muscle in a specific motion state in a motion process. CONSTITUTION:This training device 1, which supports acquiring of a correct form in sports, is constituted of a myogenic potential sensor 11 for detecting activity of muscle of a trainee as changes of myogenic potential; an acceleration sensor 12 and a sound sensor 13 for detecting a physical motion state of the trainee; a signal conversion part 14 for converting the activity of muscle detected by the myogenic potential sensor 11 into a sound signal; and a speaker 19 for outputting the sound signal corresponding to the activity of muscle in a specific motion state, based on the motion state detected by the acceleration sensor 12 and the sound sensor 13.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a training device for assisting in the acquisition of correct foam in sports.

[0002]

2. Description of the Related Art Conventionally, golf or tennis swings have been attempted to be analyzed from the viewpoint of kinematics (for example, "Biomechanics of Golf Swings" Tokuyama et al., 5th Biomechanical Conference). In these studies, myoelectric potential measurements at various parts of the body were performed in order to know the relationship between muscle activity and swing, and based on the measurement results, differences in muscle activity between advanced and beginners. Is considered.

Further, it has been reported that, in a canoeing competition, the muscle activity was fed back to the trainee by means of sound to correct the form and a great effect was obtained (“application of biofeedback to sports training”). Kumamoto, Journal of Biomechanism Society, Vol.1
0, No. 31986). When pulling a paddle in a canoe competition, a skilled person does not exert unnecessary force on his upper arm. To notify the trainee of muscle activity by detecting myoelectric potential of the biceps and converting it to sound, and to train the upper arm not to apply force during traction and to acquire the correct form. You can

[0004]

As described above, the feedback of the activity state of the muscle to the trainee by the sound or the like helps to acquire the correct form.
However, if the movement is simple, such as the biceps when pulling a paddle in a canoe competition, then it suffices to consider only whether or not the person has strength, but it involves complicated movements such as tennis and golf. In this case, not only the strength of the force, but also the timing of applying the force and the timing of removing the force become problems.

For example, the upper left arm in a golf swing needs to have some force applied from the top to the impact, but it needs to have less force applied from the impact to the follow through (follow swing).

[0006] However, since the conventional training apparatus feeds back to all the movement processes of the body in the exercise, the trainee knows the relationship between the muscle activity state and its timing or exercise state. Was extremely difficult. For example, even if it turns out that it is working, it is not clear at what timing it is, so knowing exactly if it is good or bad is could not.

[0007] In view of the above problems, the present invention allows a trainee to perceive a muscle activity state in a specific exercise state in an exercise process and to support effective training for acquiring a correct form. An object is to provide a device for use.

[0008]

In order to solve the above-mentioned problems, a device according to the invention of claim 1 is a training device for supporting the acquisition of a correct form in sports, and is a device for training the muscles of a trainee. Myoelectric potential detection means for detecting the activity state as a change in myoelectric potential, exercise state detection means for detecting the exercise state of the trainee's body, and the muscle activity state detected by the myoelectric potential detection means A signal converting means for converting the trainee into a perceptible signal perceptible to the trainee, and an output for outputting a perceptual signal corresponding to a muscle activity state in a specific motion state based on the motion state detected by the motion state detecting means. And means.

According to a second aspect of the present invention, the exercise state detecting means includes an acceleration sensor for detecting the acceleration of the body due to the exercise. In the apparatus according to the invention of claim 3, the exercise state detecting means includes a sound sensor for detecting a sound generated according to the exercise state.

In the device according to the fourth aspect of the present invention, the signal converting means is configured to convert the muscle activity state into a sound signal. The device according to the invention of claim 5 has a storage means for storing data of myoelectric potential in a correct form,
The data read out from the storage means can be converted into a sound signal by the signal conversion means and output.

[0011]

The action status of the trainee's muscles is detected as a change in myoelectric potential by the myoelectric potential detection means. The detected muscle activity state is converted into a perceptible signal such as a sound signal by the signal converting means.

Further, the exercise state detecting means detects the exercise state of the trainee's body, and based on this, the sound corresponding to the muscle activity state in a specific exercise state such as downswing or follow swing in golf. The signal is output. From this signal, the trainee knows the activity status of his / her muscle, that is, the status of his / her form.

[0013]

1 is a block diagram of a training apparatus 1 according to the present invention. The training device 1 shown here is used for golf swing training. FIG. 2 is a diagram showing a state in which each sensor is attached to the body, and FIG. 3 is a timing chart showing a state of signals of respective parts. .

The training device 1 includes a myoelectric potential sensor 11, an acceleration sensor 12, a sound sensor 13, a signal conversion section 14,
The model data storage unit 15, the exercise process determination unit 16, the exercise process extraction unit 17, the extraction timing designation unit 18, the speaker 19, and the like.

The myoelectric potential sensor 11 outputs a myoelectric potential signal S1 corresponding to the activity state of the muscles at one or a plurality of locations on the body of the trainee TR. There are various types of myoelectric potential sensors 11, and for example, a surface induction method in which electrodes are attached to two surfaces of the skin to detect an action potential is used.

The acceleration sensor 12 is for detecting the motion state of the body of the trainee TR, in this case, the progress of the swing, and is attached to the wrist or the grip of the club with a clip or band.

The sound sensor 13 is a microphone for detecting a sound generated according to the exercise state, for example, an impact sound, and is attached to the body or installed at a proper place such as near the trainee TR.

The signal converter 14 amplifies the myoelectric potential signal S1 output from the myoelectric potential sensor 11 and converts the myoelectric potential signal S1 into a sound signal S4. The sound signal S4 is a signal whose pitch changes according to the strength of the myoelectric potential signal S1, or a signal whose strength changes according to the strength of the myoelectric potential signal S1. The signal converter 14 outputs the sound signal S4 to the speaker 19 only while the gate signal S5 output from the exercise process extractor 17 is on.

The model data storage unit 15 stores in advance the data of the myoelectric potential in the model swing in the correct form of the expert. The data stored in the model data storage unit 15 is read by an instruction input from an input unit (not shown), and the signal conversion unit 14 outputs the sound signal S.
4 and is output from the speaker 19.

The movement process determination unit 16 is provided with the acceleration sensor 1
2 and the output signals S2 and S3 from the sound sensor 13 are used to detect the progress of the swing. That is, the swing position of the arm, that is, the club is detected based on the output signal S2 from the acceleration sensor 12. Further, when the output signal S3 from the sound sensor 13 exceeds a predetermined level, a level detection signal is output, whereby the impact timing is detected.

The exercise process extraction unit 17 determines the gate signal S based on the timing designated by the extraction timing designation unit 18 and the progress process output from the exercise process determination unit 16.
6 is output to control the output of the sound signal S4 by the signal conversion unit 14.

That is, the extraction timing designating section 18 is provided with keys for designating a progressing process of a swing such as "address", "back swing", "down swing", "follow swing", etc., for the purpose of training. Accordingly, the timing can be designated by operating each key or a plurality of keys. On the other hand, in the exercise process determination unit 16, the output signals S2 from the acceleration sensor 12 and the sound sensor 13 are output.
Since the progress of the swing is detected based on S3, the gate signal S6 is output at a timing according to the designated content.

Here, the operation of the training apparatus 1 when the "follow swing" is designated by the extraction timing designating section 18 will be described with reference to FIG. When the trainee TR makes one swing, the acceleration sensor 12
The sound sensor 13 outputs output signals S2 and S3 as shown in FIG. 3, and the movement process determination unit 16 determines the swing progress process based on the output signals S2 and S3. Among them, the gate signal S6 is output from the motion process extracting unit 17 while the “follow swing” is determined, and the sound signal S4 during that period is output from the speaker 19.

The trainee TR hears the sound from the speaker 19 and perceives whether the form is correct or how far from the correct form. In making the determination, for example, by listening to the sound signal based on the data read from the model data storage unit 15 in advance, the correct form can be understood in the rhythm of the sound.
It is easily judged by comparing it with the sound of the trainee TR itself.

By repeating this, the trainee TR can bring the swing form close to the correct one. Moreover, since only the sound signal S4 regarding the timing designated by the trainee TR is emitted from the speaker 19,
The activity state of the muscle at that timing can be accurately known, and effective training can be performed by concentrating on the training of only that motion.

In converting the myoelectric potential signal S1 into the sound signal S4 in the above-described embodiment, the magnitude of the myoelectric potential signal S1 is divided into three levels of high, medium and low and according to each level. Then, the sound signal may be converted into a sound signal of three levels of strength, medium, and weak, or a sound signal of three levels of height. It may be divided into two levels or four or more levels. In this way, the change in sound is gradual, and it becomes easy for the trainee TR to perceive the muscle activity state. Alternatively, the myoelectric potential signal S1 may be compared with the data stored in the model data storage unit 15 and converted into a sound signal according to the degree of difference between the levels. In this way, the sound can be emitted only when the muscle activity state is abnormally deviated from the correct state, and the trainee TR can more easily perceive.

In the above embodiment, the myoelectric potential sensor 1
The mounting position of 1 can be changed according to the purpose of training. For example, the training for repairing the slice may be attached to the upper arm of the left arm, and the training for repairing the hook may be attached to the right forearm.

In the above-mentioned embodiment, by using earphones instead of the speaker 19, the training can be carried out without causing any trouble to other trainees. Other,
The configuration of the entire training apparatus 1 or each part, the content of processing, and the like can be variously changed in accordance with the gist of the present invention.
The present invention can be used for training in various sports such as tennis, skiing and the like.

[0029]

According to the present invention, it is possible to allow a trainee to perceive a muscle activity state in a specific exercise state in an exercise process and support effective training for acquiring a correct form.

According to the invention of claim 5, the difference from the correct form can be easily perceived, and more effective training can be performed.

[Brief description of drawings]

FIG. 1 is a block diagram of a training device according to the present invention.

FIG. 2 is a diagram showing a state in which each sensor is attached to a body.

FIG. 3 is a timing chart showing the states of signals at various parts.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Training apparatus 11 Myoelectric potential sensor (myoelectric potential detection means) 12 Acceleration sensor (exercise state detection means) 13 Sound sensor (exercise state detection means) 14 Signal conversion part (signal conversion means) 15 Model data storage part (storage means) 16 Exercise process determination unit (exercise state detection means) 17 Exercise process extraction unit (exercise state detection means) 19 Speaker (output means)

Claims (5)

[Claims] 1. A training device for supporting the acquisition of a correct form in sports, comprising a myoelectric potential detection means for detecting an activity state of a muscle of a trainee as a change in myoelectric potential, and a body of the trainee. State detecting means for detecting the exercise state of the human body, signal converting means for converting the muscle activity state detected by the myoelectric potential detecting means into a perceptual signal perceivable by the trainee, and the exercise state detecting means. An output device that outputs a perceptual signal corresponding to a muscle activity state in a specific motion state based on the motion state detected by the training device. 2. The training apparatus according to claim 1, wherein the exercise state detecting means includes an acceleration sensor for detecting an acceleration of a body due to exercise. 3. The training apparatus according to claim 1, wherein the exercise state detecting means includes a sound sensor for detecting a sound generated according to the exercise state. 4. The training apparatus according to claim 1, wherein the signal converting means converts the muscle activity state into a sound signal. 5. A memory means for storing myoelectric potential data in a correct form is provided, and the data read from the memory means can be converted into a sound signal by the signal conversion means and output. The training device according to claim 4, characterized in that: