JP3145285B2 - Running and exercise training equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a running / exercise training apparatus provided with an endless belt on which a trainee can run, and more particularly, it is possible to display an evaluation index relating to the trainee's running to the trainee or instructor. It relates to a running / exercise training device.

[0002]

2. Description of the Related Art A conventional running / exercise training apparatus has been proposed, as disclosed in Japanese Patent Application Laid-Open No. 6-154354, which displays a display related to the running speed as an evaluation index when running on the apparatus. Have been. That is, the set speed information set in advance is compared with the detected speed information obtained by measuring the speed at which the trainee is running, and advice on the speed is issued according to the difference.

[0003]

In such a device,
The trainee only runs with speed alone. Therefore, the training itself tends to be monotonous, and there is little awareness of the running form. That is, since the trainee travels without considering the impact on the entire leg, such as the waist, knee, ankle, and sole, the running form is easily collapsed, and fatigue and damage to the leg joint are likely to occur. Therefore, it is difficult to continue the running training for a long time, and the training itself is apt to get tired.

[0004] It is an object of the present invention to provide a running / exercise training apparatus which can perform running training with awareness of a running form or the like, prevents monotonization, enables long-time training, and can expect a training effect. It is to be.

[0005]

A running / exercise training apparatus according to the present invention that achieves the above object is a running / exercise training apparatus provided with an endless belt on which a trainee can run. A load measuring means for detecting a running leg load applied to the endless belt is provided, and a means for performing a processing based on a running value of the running leg measured by the means based on a reference value and displaying the running leg load as an evaluation index regarding the running of the trainee is provided, The means for displaying the evaluation index is one of the average value of the trainee's weight and the measured running leg load waveform data during the ground contact time and the average value of the measured leg load during the cycle time as the reference value of the arithmetic processing. It is characterized in that the used running leg load is displayed as waveform data with respect to a reference value.

Here, either the average value of the trainee's weight and the measured running leg load waveform data during the contact time or the average value of the measured leg load during the cycle time is used as the reference value. The running leg load is displayed as waveform data with respect to the reference value.

If the impact on the trainee's leg can be measured, the training content can be corrected and enriched, and the training effect can be improved. However, it is difficult to directly measure the impact on the trainee's legs. By the way, the leg load applied to the leg by the trainee can be approximated by the load applied to the endless belt according to the law of action and reaction. By measuring the running leg load applied to the endless belt, it is possible to know the impact of the running on the entire leg, and to obtain an objective criterion that reflects the running form and the like.

A trainee who runs or walks on the running / exercise training apparatus measures the leg load acting on the endless belt, and calculates the leg load waveform data as a ratio to a reference value such as the weight of the trainee. And
The result is displayed as waveform data.

Therefore, it is possible to evaluate training based on data relating to collapse of the running form and fatigue of the leg joints. Therefore, it is possible to have a motivation to continue training, prevent monotonization, and perform scientific training based on objective data. Therefore, a good training effect can be obtained.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A running / exercise training apparatus according to the present invention will be described below with reference to an embodiment shown in the drawings. This run
The exercise training device can continuously measure a load (herein, this load is referred to as a leg load) applied to the endless belt by the trainee's leg when the trainee runs (or walks) on the endless belt. In addition, the measured leg load can be processed.

Referring to FIG. 1, a running / exercise training apparatus 1 according to an embodiment of the present invention includes a training unit 30 and a leg load data evaluation unit 31. The training unit 30 includes an endless belt 2 that is rotatably wound in the front-rear direction. Further, an operation display panel 5 including an operation panel 3 and a display 4 is provided at a front portion of the unit 30. Also, leg load data evaluation unit 3
Reference numeral 1 denotes an analysis device 32 including a personal computer and a video display 33 for displaying the analysis result. Reference numeral 34 denotes a communication cable connecting the training unit 30 and the leg load data evaluation unit 31.

The structure of the training unit 30 will be described in detail with reference to FIG. In FIG. 2, a plurality of rotatable rotation supports 7 are provided at least in front and rear portions of a gantry 6,
The endless belt 2 is guided by the rotating support 7 and driven by a motor 8. At the front is an operation display panel 5 that can be visually recognized by the trainee. The gantry 6 is provided with a plurality of support feet 9 for supporting the training unit 30, and a plurality of load detectors 10 are incorporated below the support feet 9 located below the endless belt 2. The vertical load applied to the endless belt by the trainee is detected by the load detector 10.

The load detector 10 is provided at a load detection point A shown in FIG.
As shown in an enlarged view of FIG.
And detects a vertical load applied to the support foot 9 via the gantry 6. Calibration is performed so that the measured load becomes zero in a state where there is no trainee and there is no load. The plurality of load detectors 10 share and support the load applied to the gantry 6 by, for example, the protrusions 10b of a strain gauge type load sensor 10a, and transmit a signal to the analyzer 32 via the communication cable 34. are doing. If the detected loads of the plurality of load detectors 10 are added, the load applied to the gantry 6 can be detected.

A trainee M performs walking or running training on the endless belt 2. Endless belt 2
A support plate 13 supported by a plurality of cushioning materials 12 such as rubber is disposed on substantially the entire lower surface of the trainer. The support plate 13 supports a load generated by the exercise of the trainee M. The cushioning material 12 can also play the role of simulating the softness of the ground during running on the ground, the buffering action of shoes, and the like.

As shown in FIG. 4, a plurality of load detectors 10 may be disposed directly below the endless belt 2 at a position below the support plate 13. The detailed configuration is shown in FIG. 5 which is an enlarged view of the load detection point B in FIG. The load sensor 10a of the load detector 10 is disposed on the upper surface of the gantry 6 via a cushioning material 14 such as rubber.
Projecting portion 10b supports the backing plate 15 attached to the lower surface of the support plate 13. The contact plate 15 has a recess 15a
To prevent the contact portion from being largely displaced.

A still further embodiment is shown in FIGS. 6 and 7 which is an enlarged view of a portion C in FIG. The load detector 10 has the same structure as that of FIG. 4, but the support plate below the endless belt 2 is not a single plate but may be a structure of a base 17 composed of a plurality of freely rotating rollers 16. .

In the running / exercise training apparatus having the structure shown in FIG. 2, FIG. 4 or FIG.
The load detector 10 measures the leg load applied to the support plate 13 by the leg of the trainee M who is running or walking above. In particular, when the vehicle travels, it is possible to measure a shocking vertical load at the time of landing at each step.

In each load detector 10, for example, a strain gauge type load sensor 10a is incorporated in one side of a Wheatstone bridge, and an output voltage proportional to the load received individually is obtained.

In the analog circuit configuration, the output terminals of a plurality (N) of load detectors 10 are all connected in parallel, so that even if the leg load measurement data of each load detector is different, each load detection is performed as a composite output voltage. The voltage corresponding to the average value of the leg load measurement data in the container 10 is obtained. That is, the load detector 1 in which the sum of the output voltages of the load detectors 10 is connected in parallel.
The value divided by the number 0 is obtained. Therefore, actual leg load measurement data can be obtained by multiplying the averaged measured value by the number (N) of the load detectors 10 connected in parallel. Of course, a circuit that directly outputs the sum may be used.

In the digital circuit configuration, the output voltage of each load detector 10 is converted from analog to digital, stored once in the storage means, and then the stored data is read out and added. This shows the leg load itself of the person.

A plurality of load detectors 10 are arranged below the endless belt 2. For example, it is provided on the lower surface of the support plate 13 or the base 17. Depending on the landing position of the user M, the place where the load detector is installed may be lifted upward. Lifting and falling again makes accurate leg load measurement difficult.

Therefore, in such a case, as shown in FIG. 8, it is desirable to install a lifting prevention mechanism 18 for the purpose of accurate leg load measurement. FIG. 8 shows FIG.
A plate 19 integrated with the support plate 13 is provided in the vicinity of the load detector 10. The upper surface of the plate 19 is pressed by a stopper 21 and a nut 22 via a cushioning material 20 such as rubber, and the plate 19 is fixed so as to be able to move downward. The shaft 23 screwed to the nut 22 is screwed to the gantry 6 and fixed with a lock nut 24.

The cushioning member 20 of the lifting prevention mechanism 18
Is slightly preloaded. Assuming that 4 to 6 load detectors 10 are used, the load peak value is 4
Each load detector 10 receives a peak load of 40 to 100 (Kgf). Therefore, while observing the output of the load detector 10, a preload of about 4 to 5 (Kgf) which does not significantly affect the measurement accuracy, for example, which is about 1/10 of the above value, is added. By doing so, the lifting of the support plate at the load detection position can be prevented, and the accurate vertical load can be measured.

The data measured by the load detector 10 described above is transmitted to the analyzer 32 of the leg load data evaluation unit 31 shown in FIG.
The result is displayed on the video display 33 or the display 4 at the front of the training unit 30. FIG. 9 shows a representative example of the displayed leg load data.

In FIG. 9, the horizontal axis represents time T (Sec), and the vertical axis represents the load W (Kgf) obtained by combining the measurement data of the load detectors 10. Leg load waveforms 40a, 40b
Is analyzed as measurement data in units of a cycle To for each step, and the cycle To is classified into a ground contact time Ta while the trainee's foot is in contact with the endless belt and a flying time Tb when the trainee's foot is floating. You.

The leg load waveform is significantly different depending on the landing style of the trainee M's leg. Fig. 1 of "Running Science" edited by Mitsumasa Miyashita and edited by Hiromichi Kobayashi (published by Oshukan Bookstore, 1990.7)
As described in FIG. 33 and FIG. 1-34, a typical example in the case of landing on the heel is a waveform 40a having a spike like a solid line in FIG.
A waveform 40b having no peak as indicated by the dotted line is obtained.

Representative two leg load data 40 shown in FIG.
For a and 40b, the following can generally be said. According to the above-mentioned literature, many players land on the heel like the leg load data 40a in long-distance running, and many players land on a flat sole like the leg load data 40b in short-distance running. There is a lot of distance running.

Accordingly, as shown in FIG. 9, the ratio Fp of the load Fp at the peak portion and the maximum load Fc at the portion that changes gradually is shown.
By determining / Fc, the above characteristics can be evaluated. However, here, in the case of the leg load data 40a in FIG. 9, Fp / Fc>
1, in the case of leg load data 40b, Fp / Fc = 1 (Fp
= Fc).

The leg load data analysis device 32 performs the following arithmetic processing on the measurement data of FIG. (1) The ratio of the contact time Ta to the flight time Tb, (2)
Ratio of leg load data to a reference value described later.

The details of the evaluation for the ratios (1) and (2) are as follows. First, regarding (1), the flight time T of the trainee M for traveling or walking is shown.
The ratio of b to the grounding time Ta is determined, and the value is displayed on the video display 33 as shown in FIG. This value is related to the time during which the trainee M is carrying the body forward, and is one evaluation index for the running form.

Specifically, a value for each time or an average value for several times is displayed. However, this value differs depending on the physique, age, gender, running style, etc., and although a general optimum value is not clear, it is continuously measured for the user M over a long section,
Training with the goal of little change is beneficial.

In the race, one foot must be on the ground. The flight time Tb cannot be calculated as long as this rule is followed. In this case, the flight time Tb /
The calculation result of the grounding time Ta is zero. If any numerical value is displayed, the trainee is not a race walker, so the trainee aims to maintain the zero display of the calculation result, that is, motivates the training with the zero display persistence over a long time as a motivation. it can.

A stride running method is used when the value of the flight time Tb / the contact time Ta is large, and a pitch running method is used when the value is small. In both cases, a stable calculation result is displayed according to the physique and physical strength of each trainee. You can work hard with training goals.

Next, regarding (2), (a) the weight W _{1 of the} user M, (b) the average value W _{2 of} the measured leg loads during the contact time Ta, and (c) the measured legs There is an average value W ₃ during the load cycle time To.

As for (a), for example, as shown in FIG. 10, a ratio obtained by dividing the leg load waveform by the weight W ₁ is obtained, and the vertical axis is represented by a multiple load of the weight W ₁ . The meaning of this value is to know how many times your body weight acts on your legs. The smaller this value is, the smaller the impact force acting on the waist, knee, ankle and sole, which are the leg joints, is one evaluation index for finding a running method training method with less fatigue in the running form. In other words, it is possible to realize a running form in which the burden on the leg joints is reduced, and thus it is possible to perform training for a long time.

As for (b), for example, as shown in FIG. 11, the leg load waveform is displayed on the basis of a value W ₂ obtained by averaging the leg load waveform with the contact time Ta. In FIG. 11, the area S ₀ and the area S ₂
Are those are equal, the vertical axis represents the load in multiples of the average value W _2.

Explaining this evaluation kinematically, the impulse obtained by integrating the force (leg load waveform) with time is the momentum,
Momentum is expressed as the product of mass and velocity. Therefore, the area S ₀
Is proportional to the upward speed when the trainee M leaves the floor. In other words, this value is the trainer M
Is related to the kicking force acting on the floor when carrying the body forward, and is an evaluation index for training.

As for (c), for example, as shown in FIG. 12, a leg load waveform is displayed based on a value W ₃ averaged over a period time T ₀ . In FIG. 12, the area S ₀ and the area S ₃
Are those are equal, the vertical axis represents the load in multiples of the average value W _3. Mean value W ₃ being is or will be close to the body weight W ₁ of approximately trainee M, always form the area S ₀ in the case of walking in contact with the ground only one leg approximates the shape of the area S _3.

Therefore, the evaluation of this value is related to the impact force acting on the leg joint like the evaluation of (a), and the average value W
It can be said that the smaller the value of _{3, the} better the running with less fatigue of the legs. Therefore, it is one evaluation index when aiming for running or walking with little fatigue for a long time.

The data (a), (b), and (c) in (2) are data having individual differences as in (1), and the optimum value unique to the trainee in relation to the running time is calculated by this apparatus. Can be clarified. In any case, the evaluation result of the leg load data is given to the user M by the display 4 at the front of the training unit 30.
The image is displayed on a separate video display 33 to the instructor.

In the embodiment shown in FIG. 1, the leg load data evaluation unit 31 is provided separately from the training unit 30. However, an analysis device 32 is incorporated in the training unit 30 exclusively for the trainee, and a video display 33 is provided. Can also be used as the display 4 in the training unit 30.

As still another application, the data on which the calorie consumption is to be calculated is calculated using the values of the user's weight, running speed and running distance. According to the present device, the weight of the user can be automatically measured by the load detector 10 before the start of exercise, and the running speed and the running distance can be measured as values of the device by incorporating a speedometer or a distance meter. Since it is required, the trouble of inputting can be omitted, and the accurate calorie consumption result can be obtained based on the accurate weight value. By obtaining the display of only the calorie consumption result, it is possible to work out the training without worrying about the surrounding eyes.

If the trainee is accustomed to the display of the apparatus, the user can permanently train while referring to any of the images shown in FIGS. 10 to 12 displayed on the display 4 in front of the training unit 30. it can. In addition, when the instructor is accompanied, training can be performed while receiving scientific guidance based on the data. As display data, good data at the time of starting the training or at the time when the running method becomes stable after a certain period of time is displayed as reference data, and it is possible to work on the training while comparing.

Although the case of measuring the vertical load has been mainly described, the horizontal load may also be measured. For example, the horizontal load can be measured using the acceleration / deceleration data given to the drive motor of the endless belt. Further, a means for measuring the horizontal force is also provided on the support plate, and the addition and correction can improve the accuracy of measuring the horizontal force. By using the vertical weight and the horizontal weight together, various analyzes can be performed.

The present invention has been described in connection with the preferred embodiments.
The present invention is not limited to these. For example,
It will be apparent to those skilled in the art that various modifications, improvements, combinations, and the like can be made.

[0046]

As described above, according to the present invention, running training can be performed with the consciousness of the leg load, running can be prevented for a long time, and the training effect can be expected.・ Exercise training equipment can be obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view of a running / exercise training apparatus according to an embodiment of the present invention.

FIG. 2 is a schematic vertical sectional view of the running / exercise training apparatus shown in FIG.

FIG. 3 is an enlarged view of a portion A where a load is detected in FIG. 2;

FIG. 4 is a schematic longitudinal sectional view of a running / exercise training apparatus according to another embodiment of the present invention.

FIG. 5 is an enlarged view of a load detection portion B of FIG. 4;

FIG. 6 is a schematic longitudinal sectional view of a running / exercise training apparatus according to still another embodiment of the present invention.

FIG. 7 is an enlarged view of a load detection portion C in FIG. 6;

FIG. 8 is a view showing a lift prevention mechanism added to the running / exercise training apparatus of FIG. 5;

FIG. 9 is a diagram showing a representative example of leg load data measured by the running / exercise training apparatus of the present invention.

FIG. 10 is a diagram showing the measured leg load waveform in a ratio to the weight of the trainee.

FIG. 11 is a diagram showing the measured leg load waveform as a ratio to the average value of the contact time.

FIG. 12 is a diagram showing the measured leg load waveform as a ratio to the average value of the cycle time.

[Explanation of symbols]

M: trainee 1: running / exercise training device 2: endless belt 3 ... operation panel 4 ... display 5 ... operation display panel 6 ... gantry 7 ... rotating support 8 ... motor 9 ... support leg 10 ... load detector 10a ... load Sensor 10b: Load sensor projection 11: Floor surface 12: Buffer material 13: Support plate 14: Buffer material 15: Backing plate 15a: Backing plate recess 16: Roller group 17: Base body 18: Lifting prevention mechanism 19: Plate 20: Buffer Material 21 Stopper 22 Nut 23 Shaft 24 Lock nut 30 Training unit 31 Leg load data evaluation unit 32 Analysis device 33 Video display 34 Communication cable 40a, 40b Leg load waveform

──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Yoshihiro Sakakibara 5-2-2 Koyodai, Ryugasaki-shi, Ibaraki Pref. Hitachi Techno Engineering Co., Ltd. (72) Tadayuki Saito 5-2-2, Koyodai, Ryugasaki-shi, Ibaraki Hitachi Techno Engineering (56) References JP-A-59-32472 (JP, A) JP-A-58-177124 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A63B 24 / 00 A63B 22/06 A63B 23/04

Claims (2)

(57) [Claims] 1. A running / exercise training apparatus provided with an endless belt on which a trainee can run, wherein a load measuring means for detecting a running leg load applied to the endless belt by the trainee is provided below the endless belt. Providing means for calculating the running leg load measured in the above based on the reference value and displaying it as an evaluation index related to the trainee's running, the means for displaying the evaluation index includes the weight of the trainee and the reference value of the processing. Using either the average of the measured running leg load waveform data during the ground contact time or the average of the measured leg load during the cycle time, the measured running leg load is displayed as waveform data with respect to the reference value. A running / exercise training device characterized by the following. 2. A running / exercise training apparatus provided with an endless belt on which a trainee can run, wherein a load measuring means for detecting a running leg load applied to the endless belt by the trainee is provided below the endless belt. A running / exercise training apparatus characterized by comprising means for calculating the duration of the running leg load measured in (1) and displaying it as an evaluation index regarding the running of the trainee.