JPH11342228A - Exercise evaluation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain information for the effective exercise by detecting the load which is impressed from right leg or left leg while exercising, evaluating the exercise condition and displaying to notice the result. SOLUTION: This device has a left step and a right step which are worked by stepping with a left leg or a right leg on exercising with load. And the load, which is impressed from the left leg or the right leg while exercising, is detected with the left load detection means 19 mounted on the left step or the right load detection means 20 mounted on the right step as an electric signal then it is amplified at an amplification part 35 and from the electric signal amplified at the amplification part 35, the left load wave form and the right load wave form are extracted with the wave form processing part 36. Based on the left load wave form and the right load wave form, each exercise condition is evaluated with an exercise evaluation means 37 and displayed to notice at a display and noticing part 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exercise evaluation apparatus for detecting and analyzing a load applied to a leg of a human body during an exercise activity or an arm load during a handstand exercise to evaluate an exercise state.

[0002]

2. Description of the Related Art The measurement and management of body weight is the most fundamental in maintaining and improving health, and is widely practiced as a health management at home and at work. In recent years, more effective health care has been started by measuring not only weight but also information such as physical condition, physical strength, and youth (actual age).

[0003] In particular, attention has been paid to maintaining and improving motor functions such as standing and walking, which are indispensable for basic living activities, so that the motor functions can be checked simultaneously with or in conjunction with weight measurement. There is a demand for a suitable exercise evaluation device.

[0004] Such a conventional technique is disclosed in Japanese Unexamined Patent Publication No.
What is described in -18810 is known.

FIG. 17 is an external view of a conventional exercise evaluation apparatus, and FIG. 18 is a block diagram of the conventional exercise evaluation apparatus.

In FIG. 1, a portable weight scale 201 as an exercise evaluation device includes a mat-shaped measuring section 202 and a display section 203.
The mat-shaped measurement unit 202 and the display unit 203 are detachably connected via a signal transmission / reception cable 204 and a connector 205.

The mat-shaped measuring unit 20 of the portable weight scale 201
On the upper surface of 2, there is provided a foot-shaped mounting portion 206 for mounting both feet of the measurer. A plurality of strain gauges 207 are built in the placing section 206, and the strain gauge 207 converts a pressure (load) applied when the measurer stands on the placing section 206 with both feet or one foot, into a voltage, The data is output to the control unit 211.

On the other hand, the display unit 203 of the portable weight scale 201
On the upper surface of the device, a weight display unit 208 that displays the weight of the measurer when both feet stand on the placement unit 206, and a time display unit 20 that displays the one-leg standing time when one leg stands on the placement unit 206
9 and the posture state based on the weight distribution state when standing on both feet, the health state based on the weight distribution state when standing on one foot, and the health based on the change cycle / waveform of the weight distribution state when standing on one foot A health data display unit 210 for displaying health data regarding the quality of the condition is provided.

[0009] The display unit 203 of the portable weight scale 201 has a built-in control unit 211. The configuration of the control system of the portable weight scale 201 is as shown in FIG.
7, a weight display unit 208, a time display unit 209, a health data display unit 210, a control unit 211, and a storage unit 212.

[0010] The storage unit 212 is pre-stored with reference health data on an average human,
In addition, various types of measurement data such as the last time and two times before the measurement person are stored.

Using such a portable weight scale 201,
When the measurer stands on both feet to evaluate the weight and posture, both feet are placed on the placement section 206 of the mat-shaped measurement section 202. At this time, the load based on the weight of the measurer is converted into a voltage by the plurality of strain gauges 207 incorporated in the mounting unit 206, and then output to the control unit 211. Control unit 21
1 measures the weight distribution state of the measurer's weight based on the output voltage from the strain gauge 207, and displays the measured weight on the weight display unit 208 of the display unit 203.

Further, the control unit 211 evaluates the posture of the measurer based on the weight distribution of the measurer,
The health data display unit 210 displays any of “average posture average”, “good posture”, and “below average posture”. Thereby, the measurer can immediately know whether the posture state is good or not together with his / her weight.

On the other hand, when the measurer stands on one leg and evaluates the health condition and the healthy age, one leg is placed on the mounting portion 206 of the mat-shaped measuring portion 202, and the change cycle / waveform of the weight distribution state is determined. Measure and evaluate the measurer's health status and healthy age.

The evaluation result is displayed on the health data display section 210 as "average health state", "healthy age is XX years old" or "good health state""healthy age is △△ years old" or "health state is below average""Healthy age is xx years old" is displayed. As a result, the measurer can immediately know whether his or her health is good or bad and whether or not it is healthy (whether it is younger than the actual age).

According to the conventional technique as described above, it is possible to partially obtain not only the weight but also other information relating to the health condition from the weight signal at the foot.

[0016]

[Problems to be solved by the present invention] In recent years,
For the maintenance and promotion of health maintenance, the importance of moderate exercise is recognized again as well as the importance of weight management and diet management, and it is recommended to actively move the body, for example, to walk.

On the other hand, due to environmental factors typified by diversification of lifestyles, at present, there is little time to carry out exercises that are effective for health, and it is desired to exercise more effectively. It is rare. To realize an effective exercise, it is necessary to detect the exercise state and provide information on the exercise state.

[0018] Even with the prior art, the exercise state is partially displayed. However, due to the structure of the apparatus, the weight signal cannot be taken out unless the foot touches the apparatus on the floor, and the exercise state during exercise cannot be evaluated. Had issues.

The problem to be solved in the present invention is to detect the load applied from the right and left feet during exercise, evaluate the exercise state, and display and announce the result to exercise more effectively. To provide an exercise evaluation device that can obtain the information of the exercise.

[0020]

The exercise evaluation apparatus according to the present invention includes a left step and a right step that are operated by placing the left foot and the right foot during a load exercise, and is attached to the left step and the right step to perform the exercise during exercise. Load detecting means for detecting a left load and a right load respectively applied from the left foot and the right foot as an electric signal, a waveform processing unit for extracting a load waveform from the electric signal, and a left load waveform respectively extracted by the waveform processing unit And a motion evaluation means for evaluating motion based on the right load waveform, and a display notifying section for notifying a result obtained by the motion evaluation means.

According to this configuration, the load applied from the right and left feet during exercise is detected, the exercise state is evaluated, and the result is displayed and notified, so that information for more effective exercise can be obtained. Obtainable.

[0022]

According to the first aspect of the present invention, there is provided a load detecting means for detecting a load applied at a reaction force as an electric signal, a waveform processing unit for extracting a load waveform from the electric signal, Since the exercise evaluation device includes exercise evaluation means for evaluating an exercise state based on the load waveform, and a display notification unit for notifying a result obtained by the exercise evaluation means, the exercise during exercise State information can be provided, exercise content can be checked, and more effective exercise can be performed.

According to a second aspect of the present invention, the load detecting means has a function of detecting left and right loads as electric signals,
2. The exercise evaluation device according to claim 1, wherein the exercise evaluation unit has a function of evaluating an exercise state based on the left and right load waveforms extracted by the waveform processing unit. 3. You can check the difference between left and right exercise by providing
More effective exercise can be performed.

According to a third aspect of the present invention, there is provided a left step and a right step which are operated by placing a left foot and a right foot during a load exercise at a place where the reaction force is present, and wherein the load detecting means comprises the left step. And a function attached to the right step to detect a left load and a right load respectively applied from the left foot and the right foot during exercise as an electric signal, wherein the exercise evaluation means is a left load waveform extracted by the waveform processing unit. The exercise evaluation apparatus according to claim 1 or 2, further comprising a function of evaluating exercise based on the right and left load waveforms, and providing information on the exercise state of the left foot and the right foot during exercise. By doing so, it is possible to check the exercise content, and it is possible to exercise more effectively.

According to a fourth aspect of the present invention, the exercise evaluation means detects a weight value by detecting a left load value and a right load value from the left load waveform and the right load waveform, respectively. 4. The exercise evaluation device according to claim 3, further comprising a load-evaluating means for evaluating the load-bearing degree of the left foot or the right foot from the weight value and the left and right load values. In addition, the magnitude of the load applied to the left foot or the right foot can be notified as the load burden.

According to a fifth aspect of the present invention, the exercise evaluating means includes a weight detecting means for detecting a left load value and a right load value from the left load waveform and the right load waveform, respectively, and the display notifying section comprises: 4. A load-bearing degree evaluating means comprising a numerical value input key for a body weight value and evaluating a load-bearing degree of a left foot or a right foot from the body weight value and the left and right load values. Since the exercise evaluation device of (1), the load burden of the left foot or the right foot can be evaluated based on the weight input numerically, and the configuration of the weight detection means is simplified.

According to a sixth aspect of the present invention, the exercise evaluation means includes balance evaluation means for evaluating left-right balance during exercise from the left load waveform and the right load waveform. 5 is an exercise evaluation device according to any one of the above, by notifying the state of left and right balance in the movement of the body and left and right feet during exercise,
You can exercise effectively considering the right and left balance.

According to a seventh aspect of the present invention, there is provided a load adjusting unit which can adjust the load intensity of each of the left step and the right step, and the exercise evaluating unit includes a balance adjusting unit which controls the right load adjusting unit. Since the exercise evaluation device according to claim 6, the exercise can be exercised in a balanced and safe manner.

The invention according to claim 8 is characterized in that the exercise evaluating means includes calorie consumption calculating means for calculating calorie consumption during exercise from the left load waveform and the right load waveform. Since the exercise evaluation device according to any one of to 7 above, since the amount of calories consumed in the body by exercise can be known, the result of exercise can be grasped.
Helps promote motivation to continue exercising.

According to a ninth aspect of the present invention, the exercise evaluation means includes exercise fitness evaluation means for evaluating exercise suitability from the left load waveform and the right load waveform and an ideal waveform for an ideal exercise. The exercise evaluation device according to any one of claims 3 to 8, characterized in that the exercise state of the body and the left and right feet during exercise is notified as exercise suitability, so that more effective exercise is performed. Becomes possible.

According to a tenth aspect of the present invention, the exercise evaluating means includes a physical condition detecting means for detecting a physical condition during exercise from the left load waveform and the right load waveform. Since the exercise evaluation device according to any one of items 1 to 9, the exercise device can be exercised with greater security by notifying physical information such as the degree of fatigue during exercise.

[0032] The invention according to claim 11 is characterized in that the exercise evaluation means includes a failure detection means for detecting a failure of the apparatus from the left load waveform and the right load waveform. Since the exercise evaluation device described in any one of the above, the erroneous judgment is prevented by automatically detecting and notifying the failure of the exerciser.

According to a twelfth aspect of the present invention, in the motion evaluation apparatus according to any one of the third to eleventh aspects, there is provided a position detecting means for detecting the operation positions of the left step and the right step. Therefore, the exercise evaluation can be performed more accurately or more diversifiedly.

Hereinafter, embodiments of the present invention will be described. (Embodiment 1) FIG. 1 is a schematic configuration diagram of a stepping exercise device equipped with an exercise evaluation device as a first embodiment of the present invention,
FIG. 2 is a longitudinal sectional view of the left and right load detecting means in FIG. 1, FIG. 3 is a sectional view of a connecting portion between the left and right load adjusting units and the left and right step forward support arms in FIG. 1, and FIG. It is a detailed view of a display notification part.

In FIG. 1, the foot exercise device includes a foot exercise device main body 1, a left step 2 for placing the left foot during exercise, a right step 3 for placing the right foot during exercise, and a left step forward for supporting the operation and load of the left step 2. The support arm 4 and the left step rear support arm 5, the right step front support arm 6 and the right step rear support arm 7, which support the operation and the load of the right step 3, and the pulley for synchronizing the operations of the left and right steps 2 and 3. 8, a wire 9 for connecting the left and right step forward support arms 4, 6 for synchronizing the operations of the left and right steps 2 and 3, a left damper 10 for generating a drag against the operation of the left step 2, a right step 3, a right damper 11 for generating a drag, and a shock-absorbing stopper 1 for alleviating a motion shock when the left and right steps 2, 3 reach the descending end.
2. The handle 13 used at the time of exercise, the display notification unit 14 for displaying and notifying the exercise evaluation result, the left damper 10 and the front support arm 4 are connected, and the connection position is changed to reduce the operation load of the left step 3. The left load adjusting unit 15 for adjusting, the right damper 11 and the front support arm 6 are connected, the connecting position is changed to adjust the operation load of the right step 3, the right load adjusting unit 16 is used, and the load by the left foot is converted into an electric signal. It comprises left load detecting means 19 for detecting, right load detecting means 20 for detecting a load by the right foot as an electric signal, and position detecting means 23 arranged on the rotation axis of the pulley 8.

Here, the left and right dampers 10 and 11 generally have a cylinder structure in which a viscous fluid is sealed, generate a resistance to the expansion and contraction operation, and convert the input mechanical energy into thermal energy. In some cases, there is a type that generates a drag only in the elongation direction, a type that generates a drag only in the contraction direction, or a type that generates a drag in both expansion and contraction. However, in the present embodiment, description will be made assuming that a drag is generated only in the extension direction.

The position detecting means 23 may be any method such as an optical or magnetic encoder or a potentiometer. Also,
Although the position detecting means 23 is arranged on the rotation axis of the pulley 8, any position may be used as long as the positions of the left and right steps 2 and 3 can be detected, such as the rotation center of the left step front support arm 4 or the left step rear support arm 5.

As shown in FIG. 2, the left and right load detecting means 19 and 20 are provided with a lower case 24 attached to the left and right steps 2 and 3, and a strain generating section 25 which generates distortion in relation to the load. Upper case 2 receiving the load of left foot or right foot
6, a top sheet 27 attached to the upper surface of the upper case 26 to prevent the left foot or the right foot from slipping, a bolt 28 connecting the upper case 26 to the strain-generating portion 25, and connecting the strain-generating portion 25 to the lower case 24, a strain-generating portion. 25, a strain gauge 29 for detecting the amount of surface strain of the strain generating portion 25, a lead wire 30 electrically connected to the strain gauge 29, and a relay connector for electrically connecting the signal wire 32 and the lead wire 30. 31. Here, when a load due to the left foot or the right foot is applied to the upper case 26 via the topsheet 27, the strain generating portion 25 fixedly connected between the lower case 24 and the upper case 26 is provided.
Shear force is applied. The strain generating portion 25 is deformed in proportion to the magnitude of the shearing force, and the load by the left foot or the right foot is detected as a change in the electric resistance by the strain gauge 29 attached to the surface. In the present embodiment, the strain gauge 29 is used as the left and right load detecting means. However, if the load by the left foot or the right foot can be electrically converted and detected, a magnetostriction type, a displacement type, a pressure type, a tuning fork type may be used. The method is not limited.

Further, as shown in FIG. 3, the left and right load adjusters 15 and 16 have a portion connected to the left and right dampers 10 and 11 at the ends, and a rail 151 with a rack that can move in the vertical direction. A roller 152 for smoothing the movement of the rail with rack 151 and restraining the movement in the vertical direction, a worm gear 153 for vertically moving the rack with rail 151 by forward and reverse rotation, a tip bearing 154 for holding a tip of the worm gear 153, First reduction gear 156 and second reduction gear 15 for reducing the output rotation speed of motor 159
7, an intermediate bearing 155 for holding a shaft connecting the worm gear 153 and the first reduction gear 156, a motor 159 capable of forward and reverse rotation, and a motor output bearing 158 for holding a motor output shaft connecting the motor 159 and the second reduction gear 157. , And a relay box 151 for electrically connecting the motor wiring 160 and the control wiring 162. Here, when the motor 159 is rotated, the worm gear 153 rotates via the second reduction gear 157 and the first reduction gear 156, and the rail 151 with the rack moves with the rotation of the worm gear 153.

By the way, the load applied to the left step 2 is a geometric structure and a step composed of the left step front support arm 4, the left step rear support arm 5, the mounting position of the left step 2 with respect to the main body 1 and the step position. The load is obtained by multiplying the influence of the load distribution by the position and the geometric coefficient determined by the length of the left step 2 and the position of the left load adjusting unit 15 and acts on the left damper 10. The same applies to the right step 3, the right step front support arm 6, the right step rear support arm 7, the right damper 11, and the right load adjustment unit 16.

Therefore, the left and right steps 2, 3, left,
Right front support arms 4 and 6 and left and right rear support arms 5
Even when the structural materials such as 7 are fixed and the drag generation intensities of the left and right dampers 10 and 11 are also fixed, the left and right load adjusters 15 and
By changing the position 16, the drag acting on the left and right steps 2 and 3 can be changed and adjusted.

For example, when the left and right load adjusters 15 and 16 are moved upward, the load forces acting on the left and right steps 2 and 3 are increased, and the left and right load adjusters 15 and 16 are moved downward. And the load force acting on the left and right steps 2 and 3 becomes smaller. Therefore, the load force acting on the left and right steps 2 and 3 can be adjusted by rotating the motor in the load adjusting section 15 in the normal and reverse directions.

Further, as shown in FIG.
Reference numeral 4 denotes a display unit 41 composed of a liquid crystal or a 7-segment LED for displaying various information, a numerical input key 42 used to input numerical data, a selection switch 43 for changing and selecting functions and display items, It comprises a decision input switch 44 for deciding to accept input information, and a speaker 45 for giving an alarm sound or data notification.

The operation principle of the stepping motion device will be described below. In a state where the right step 3 is at the lower end and hits the buffer stopper 12 and the left step 2 is above, the user puts both feet on the left and right steps 2 and 3, respectively, and puts more weight on the right foot. Also, left and right steps 2,3
Does not move.

Subsequently, when the user puts more weight on the left foot, the left step 2 starts to descend gradually. At this time, the left step front support arm 4 falls backward accordingly, so that the left load adjusting unit 15 also moves backward at the same time, and the left damper 10 extends. In addition, since the wire 9 attached to the left step front support arm 4 is pulled, the right step front support arm 6 is pulled upward and forward, and as a result, the left and right steps 2 and 3 are inverted and synchronized. Become.

At this time, the descent speed of the left step 2 is
The force is determined by the force for tilting the left step forward support arm 4 and the resistance generated when the left damper 10 is extended. Generally, when a standard adult male puts a load on the left or right step 2 or 3 with the left foot or the right foot, the one-side descent time of the left and right steps 2 and 3 is 0.2 to 2.0 seconds. Therefore, since 0.3 to 0.8 seconds are preferable for comfortable exercise, the drag of the left and right dampers 10 and 11 is adjusted so as to fall within the range.

Further, the position detecting means 23 detects the positions of the left and right step forward support arms 4 and 6, that is, the positions of the left and right steps 2 and 3 from the rotation angle of the pulley 8.

By repeating the above operation with the left foot and the right foot, it is possible to continuously perform the stepping exercise, and the load by the left foot and the right foot during the exercise is reduced by the left and right dampers 10 and 11.
Is absorbed by.

Although the first embodiment has been described as a stepping exercise device that exercises around the left foot and the right foot, the device can be applied to the left hand and the right hand and used in an upright position.

FIG. 5 is a block diagram of the exercise evaluation device according to the first embodiment of the present invention. The exercise evaluation device is
An amplifying unit 35 for amplifying a change in electric resistance of the right load detecting units 19 and 20 as an electric signal correlated with the load, a waveform processing unit 36 for extracting left and right load waveforms from the electric signal correlated with the load from the amplifying unit 35, It comprises a motion evaluation means 37 for evaluating various motion situations using the left and right load waveforms extracted by the waveform processing unit 36, and a display notification unit 14.

Further, the motion evaluation means 37 includes the waveform processing unit 3
6. Weight detection means 37 for detecting a left weight value and a right load value from the left and right load waveforms extracted by 6 to detect a weight value.
a, load-weight evaluation means 37b for obtaining a load-weight of the left foot or the right foot from the weight value detected by the weight detection means 37a and the left and right load values to evaluate the exercise, and the left and right weights extracted by the waveform processing unit 36. The balance evaluation means 37c for comparing the right load waveform to evaluate the left and right balance during exercise, and the left and right load adjustment units 15, 16 to correct the left and right balance based on the result obtained by the balance evaluation means 37c. The balance adjustment means 37d for controlling, the calorie consumption calculating means 37e for calculating calorie consumption from the left and right load waveforms extracted by the waveform processing section 36, the left and right load waveforms extracted by the waveform processing section 36 and the ideal motion. By comparing and calculating the ideal waveform with respect to the motion, the motion suitability evaluation means 37f and the waveform processing unit 36 for calculating and evaluating the suitability of the exercise being performed. The physical condition detecting means 37g for detecting the physical condition such as the degree of fatigue of the exercising person on the basis of the degree of disorder of the extracted left and right load waveforms, and the failure of the apparatus is determined from the left and right load waveforms extracted by the waveform processing unit 36. It comprises a failure detecting means 37h for detecting.

After the user operates the selection switch 43 and the decision input switch 44 of the display notifying section 41, the weight detecting means 37a sets a measurement time of a fixed length, and calculates the left and right load waveforms from the left and right load waveforms during that time. , And the weight value is detected by obtaining the right load value.

Here, in the stepping exercise apparatus of FIG. 1, when the user stands quietly on the left and right steps 2 and 3 without holding the handle 13, the left and right load waveforms extracted by the waveform processing unit 36 are used. The sum of the determined left and right load values corresponds to the weight value. Also, even when standing with one of the right and left feet, the overall weight is applied to the load detection means of the foot on which the foot is placed, and one of the load detection means has no load,
As a result, the sum of the left and right load values obtained from the left and right load waveforms becomes the same as the weight value, and the weight value can be obtained.

Alternatively, the user can input a numerical value of the weight value from the numerical value input keys 42 provided on the display notification unit 14 without obtaining the weight value from the left and right load values. In this case, the configuration of the weight detecting means 37a can be simplified.

By the way, the load bearing degree Rf is based on the ratio of the left or right load value to the weight value of the user detected by the weight detecting means 37a.
Assuming that the left or right load value is Fm, Rf = Fm / M.

At this time, if one leg is standing still, Rf = 1.0, and if both legs are standing well-balanced, Rf = 0.5 on both the left and right sides.
Also, for example, at the moment of an operation such as jumping in the air or an operation such as landing such as jogging, a load due to acceleration change is added to the weight on the left foot or the right foot,
Rf exceeds 1.0.

Therefore, the load burden evaluation means 37b
The peak load value Fmax is obtained as the left or right load value Fm, and the load share Rf is calculated as Rf = Fmax / M.

Hereinafter, a method of extracting the peak load value Fmax will be described. FIG. 6 is a waveform diagram extracted by the waveform processing unit.
1 is the first waveform, 62 is the second waveform, 63 is the peak value of the first waveform 61, and 64 is the peak value of the second waveform 62.

The peak values 63 and 64 can be obtained from the first waveform 61 and the second waveform 62 by an electric circuit as hardware, by a comparison operation loop by software, or by a combination of both. However, here, it is determined by an electric circuit as hardware shown in the peak detection circuit diagram of FIG. The peak detection circuit 50
It is composed of a diode 51, a capacitor 52, and a resistor 53, and an output voltage 55 is obtained for an input voltage 54.

In such a configuration, the capacitor 52
An input voltage 54 that has passed through the diode 51 is applied to both ends. At this time, if the capacitor 52 has already been charged by the input voltage 54, the charged charge is prevented from flowing backward by the diode 51, and thus tends to flow to the resistor 53 and the output terminal. In general, a circuit connected next to the present circuit has a large resistance as viewed from the input side of the circuit, so that almost all current flowing out of the capacitor 52 is discharged via the resistor 53.

At this time, the time constant τ (sec) used as an index of the gradual state of the discharging state is obtained by τ = C × R, and the voltage Vc across the capacitor 52 is Vc = Vco × e−T / τ (1)

Here, Vco is the voltage at the start of discharge, and e is the base of the natural logarithm. Therefore, the voltage between both ends of the capacitor 52 decreases as in the equation (1), and the input voltage 54
Is higher, the battery is charged to the input voltage 54 again. At this time, a voltage loss occurs in the diode 51, but since the voltage loss is a constant value in processing, it can be corrected.
I ignore it in the expression.

By combining the capacitance of the capacitor 52 of the peak detection circuit 50 and the resistance of the resistor 53 with an appropriate value and setting the time constant τ to 0.1 to 2.0 seconds, the output voltage 55 becomes A peak value can be extracted from a continuous load signal as the voltage Vc across the capacitor 52.

FIG. 8 is a waveform diagram showing the processing by the peak detection circuit 50. Waveform processing unit 36 continuously during exercise
The third continuous waveform 71 inputted to the peak detecting circuit 50 corresponds to the input voltage 54 of the peak detecting circuit 50, and the peak detecting waveform 72 of the third continuous waveform 71 corresponds to the output voltage 55 of the peak detecting circuit 50.

The output voltage 55 thus obtained is extracted as the peak load value Fmax, the load burden Rf is calculated, and the result is displayed on the display notifying section 14.

The peak detection circuit 50 according to the present embodiment
In the above, the resistor 53 is used. However, after inserting a relay or a transistor circuit capable of opening and closing the circuit in place of the resistor 53 or in series with the resistor 53, the peak value is maintained.
There is also a method of separately resetting the peak value by operating a relay or a transistor that opens and closes this circuit.

Further, the above-mentioned load burden evaluation means 37b
In the above, the load share Rf was calculated using the peak load value Fmax, but instead of the peak load value Fmax, the average value of the waveform, the effective value, or the difference between the maximum value and the minimum value in the waveform,
Alternatively, it is possible to use a duty ratio or the like obtained from a time exceeding a certain load value and a time equal to or less than the certain load value.

As a method of notifying the display of the load share Rf, instead of the above-mentioned display, a percentage display, a display as a weight value as a zero point, a display at a certain interval, a bar graph, or a bar graph may be used. Display, diode display at regular intervals, display converted to representative words, voice announcement,
How to convert those levels to timbre and pronunciation pitch,
Any method that allows the user to recognize the degree of load burden may be used. This display notification may be a separate display for one foot, a display of both feet average, a display after averaging for a certain period of time, a display as a time change ratio, or the like.

FIG. 9 is a waveform chart showing the processing by the balance evaluating means 37c. 81 is a fourth right load waveform detected by the right load detection means 20, 82 is a fifth left load waveform detected by the left load detection means 19, 83 is a load threshold value for determining the presence or absence of a load, and 84 is right The time width TR, in which the load waveform 81 exceeds the load threshold value 83, is the time width TL, in which the left load waveform 82 exceeds the load threshold value 83.

When the user is exercising continuously and the user is exercising with good left-right balance, the left load waveform and the right load waveform are almost the same. However, depending on the improper adjustment of the left and right loads and the physical condition of the user, the right and left balance may be lost, and the waveform may be different. At this time, there is a difference between the time width TR84 and the time width TL85.

For example, the right damper 11 is replaced by the left damper 10
When the drag in the extension direction is greater than that, the right damper 11 is extended more slowly even if the same force is applied to the right and left feet. As a result, the time width TR84 becomes equal to the time width TL8.
5 is also longer.

The balance evaluating means 37c compares these time widths and evaluates the result as a right / left balance.

Here, the balance index FB is expressed by FB = (TR−TL) / ((TR + TL) / 2). When the result is positive, the load on the right side is relatively large, and when the result is negative, Evaluate that the load on the left side is relatively large. Then, the obtained result is displayed and notified to the display notifying unit 14 as the evaluation of the degree of right and left balance.

Although the time width is used as the evaluation information of the degree of balance between the left and right as described above, other than this, the peak value, average value, effective value, or difference between the maximum value and the minimum value in the waveform may be used. Alternatively, a duty ratio or the like obtained from a time exceeding a certain load value and a time equal to or less than the certain load value may be used.

As a method of notifying the display of the degree of right and left balance, instead of the above-mentioned display, a percentage display, a display divided at regular intervals, a bar graph display, and a diode divided at regular intervals are provided. Any method that allows the user to recognize the degree of left / right balance, such as display, conversion into representative words, voice notification, or a method of converting those levels into timbres or pronunciation pitches, may be used. This display notification may be a display after averaging for a certain period of time, a display as a time change ratio, or the like.

The balance adjusting means 37d automatically adjusts the balance between the left and right when the evaluation of the degree of balance by the balance evaluating means 37c is deteriorated.

As shown in FIG. 9, the time width T of the right load waveform
When the time width TL85 of the fifth left load waveform example is longer than that of R84 and the difference or the ratio exceeds a preset threshold value, the left and right load adjustment units 15, shown in FIG. 1
6, the load is adjusted so as to normalize the left and right balance.

Generally, it is more comfortable to adjust the load lightly. In this case, if the left load adjusting unit 15 is moved so that the exercise load on the left side is lightened (small), the time width TL8 can be adjusted.
5 is also shorter. Then, the left and right balance is adjusted to normalize.

However, if the left load adjusting section 15 has already reached the limit of the load adjusting range and there is no problem in increasing the exercise load, the right load adjusting section 16 should be made heavy (large). May normalize the balance.

FIG. 10 shows a correlation diagram between the loads applied to the left and right steps 2 and 3 and the speeds of the left and right dampers 10 and 11.

The stroke during the movement can be obtained by obtaining the damper speed during the movement using the correlation curve 86 in FIG. 10 and further integrating over time. The height direction strokes of the left and right steps 2 and 3 are obtained from the obtained stroke at the time of the movement and the geometric conditions of the apparatus. Further, the speed (pitch) of the stepping motion is obtained from the load waveform. The consumed calorie calculating means 37e calculates the consumed calorie Em using these values.

Here, the height component is Hm (m), the effective average load value during exercise is Mm (kg), and the gravitational acceleration is G
(M / s ² ) and the speed (pitch) of the stepping motion is Pm (times /
Minutes), and when the exercise time is Tm (minutes), the calorie consumption Em during the exercise during that time is expressed by the following formula: Em = Km × Mm × G × Hm × Pm × Tm / 4.18 Desired.

Here, Km indicates the ratio between the mechanical output of the left foot and the right foot during stepping exercise and the internal consumption output including the physiological response in the body, and is generally about 2.0 to 10.0. In a stepping motion or the like, Km is typically about 5.

In the method described above, the height direction stroke is obtained from the speeds of the left and right dampers 10 and 11, but the signal of the position detecting means 23 may be used to detect the movement stroke.

In the above method, the method of calculating the potential energy is used. In addition to the relationship between the load and the damper speed shown in FIG. 10, the left and right dampers 10, 11 for the speed and the displacement are experimentally obtained. There is also a calculation method in which the absorbed energy amount of the left and right dampers 10 and 11 during exercise is calculated in advance and the integrated value of the absorbed energy of the left and right dampers 10 and 11 during exercise is used.

[0086] Also, as a method of notifying the display of calories consumed by exercise, instead of numerical display, display by food symbols, display at regular intervals, bar graph display, and display at regular intervals are provided. Any method that allows the user to recognize the calorie consumption for exercise, such as a diode display, a display converted into a representative word, a voice notification, and a method of converting those levels into a tone color or a pronunciation pitch, may be used. This display notification may be a display after averaging for a certain period of time, a display as a time change ratio, or the like.

FIG. 11 is a waveform diagram showing the processing by the exercise suitability evaluation means 37f. The exercise suitability evaluation means 37f stores a seventh ideal load waveform 88 generated at the time of ideal exercise, which is obtained based on physical conditions such as weight and machine conditions such as a stepping exercise device. When you start
An ideal deviation area 89 is separated from the sixth actual load waveform 87 and the seventh ideal load waveform 88, the waveform area is obtained, and the result evaluated as the exercise fitness is displayed on the display notification unit 14.

Now, the waveform area of the sixth actual load waveform 87 is represented by S
d, assuming that the ideal load waveform area is SS, the fitness of motion Fs
Is obtained as Fs = 1− (Sd−SS) / SS, and Fs = 1 during ideal exercise.
On the other hand, when Sd increases, that is, when it departs from the ideal load, Fs becomes smaller than 1.

Although the ideal deviation area 89 is used as the evaluation information of the exercise fitness Fs as described above, the peak value, the average value, the effective value, or the maximum value and the minimum value of the waveform may also be used. In some cases, the difference or the like is obtained by comparison with an ideal value.

Also, as a method of notifying the display of the degree of fitness for exercise, instead of the above-mentioned display, a percentage display, a display divided at regular intervals, a bar graph display, and a diode divided at regular intervals are provided. Any method that allows the user to recognize the degree of exercise suitability, such as a display, a display converted into a representative word, a voice notification, or a method of converting those levels into a timbre or a pronunciation pitch, may be used. This display notification may be a display after averaging for a certain period of time, a display as a time change ratio, or the like.

FIG. 12 is a waveform diagram showing processing by the body condition detecting means 37g. In general, in the case of continuous exercise, if the body becomes extremely tired, the movement of muscles and joints will be loose or vibrant, which is not normally observed, or the smoothness will deteriorate. Therefore, the body condition detecting means 37g detects a body abnormality by the following method.

From the eighth abnormal body load waveform 90, first,
An initial peak occurrence position 91 and a final peak occurrence position 92 are detected, and an analysis range 93 to be analyzed in detail is determined. Next, the fluctuation state in the waveform of the analysis range 93 is analyzed,
The maximum value and the minimum value of the load in the analysis range 93 are extracted, and the difference is detected as the load fluctuation width 94.

The detected fluctuation width is compared with a preset threshold value, and when the load fluctuation width 94 exceeds the threshold value, the body condition is recognized as abnormal and the result is displayed and notified.

The display notifying means is not only a display such as OK / NG, but also, for example, a% display as a degree of physical fatigue, a display at regular intervals, a bar graph display, and a display at regular intervals. Any method that allows the user to recognize the physical condition, such as a diode display, a display converted into a representative word, a voice notification, or a method of converting the level of the timbre or the pronunciation pitch, may be used. This display notice
A display after averaging for a certain period of time or a display as a time change ratio may be used.

Further, although the load fluctuation width 94 in the waveform of the analysis range 93 is used as the body condition detecting means 37g, the degree of temporal change of the data is used.
Checking the magnitude of the difference between the load fluctuation ranges 94 in the right steps 2 and 3, the difference between the left and right loads, and the rate of change of the difference over time, the waveforms and waveforms having characteristics related to the body condition, frequency analysis Etc. may be used.

By the way, in FIG.
If 0, 11 breaks down and no drag occurs during exercise, the broken left and right steps 2, 3 of the left and right dampers 10, 11 will descend extremely fast during exercise.

Even if the left and right dampers 10 and 11 are normal, the connection with the main body 1 or the left and right load adjusters 15 and
No damper drag is generated even if the connection with the connection 16 deviates, and similarly, the left and right steps 2 and 3 descend extremely fast during exercise.

At this time, the waveform of the load is the first waveform as shown in the waveform diagram showing the processing by the failure detecting means 37h in FIG.
Zero fault waveform 102 and tenth fault waveform time width 104
Are the ninth normal waveform 101 and the ninth normal waveform time width 1
03, which is extremely short.

Therefore, the failure detecting means 37h sets the lower limit threshold or the upper and lower thresholds for the ninth normal waveform time width 103, and sets the normal range represented by those thresholds. If it deviates, it is detected as a failure, and the display notification unit 14 notifies the display.

On the other hand, in FIG. 1, when the shock absorber 12 is out of order and the lower limit of the movement is not absorbed sufficiently,
The left and right steps 2 and 3 suddenly stop when they arrive at the lower end of the movement, and generate an impact load. Therefore, a large load is applied to the heel of the human body, even for a short time.

In this case, as shown in the waveform diagram of FIG.
1 Compared to the peak value 112 of the normal waveform 110,
The peak value 113 of the two-failure waveform 111 becomes extremely large.

Therefore, an upper threshold value or an upper / lower threshold value is set for the peak value, and if the peak value deviates from the normal range represented by the threshold value, it is detected as a failure and the display notification unit is provided. At 14 a display notification is made.

As the failure detecting means 37h, a method based on the tenth waveform time width at failure 104 and a peak value 113 at the time of failure
In addition to the above, a method of checking the degree of deviation of the correlation between the set positions of the left and right load adjustment units 15 and 16 and the magnitudes of the left and right loads, and checking the difference between the left and right load of the detected load waveform. There may be a method of checking the degree, checking the degree of occurrence of noise superimposed on the load waveform, and checking the intensity of a frequency component having a characteristic that occurs at the time of failure.

(Embodiment 2) FIG. 15 is a schematic structural view of a foot exercise device equipped with a motion evaluation device according to a second embodiment of the present invention, and FIG. 16 is a left and right vertical load sensor 21 shown in FIG. , 22 are longitudinal sectional views.

In the figure, a left vertical load sensor 21 as a left load detecting means is mounted above the left step front support arm 4 to apply a load to the left step front support arm 4.
Is detected as bending stress. The right vertical load sensor 22 as right load detecting means is mounted above the right step front support arm 6 to apply a load to the right step front support arm 6.
This is detected as the bending stress of. The names and roles of other parts are the same as those in FIG.

The left and right vertical load sensors 21 and 22 are disposed between the support arm upper side 4a and the support arm lower side 4b, and the names and roles of other parts are the same as in FIG. is there.

In such a configuration, the weight and the load due to the exercise applied to the left and right steps 2 and 3 are equal to the left and right steps 2 and 3 forming the parallelogram and the left and right front support arms 4 and 6. And the left and right rear support arms 5, 7 and the lower fixed shaft of the main body 1 are supported. At this time, when the left step 2 is located above and a load is applied, the left step 2 receives the reaction of the left damper 10 and gradually moves rearward and downward around the lower rotation axis of the left step front support arm 4. .

At this time, the resistance of the left damper 10 is such that the load on the left step 2 acts forward on the lower arm 4b and the load on the left step 2 acts on the upper arm 4a rearward. Force is generated. Since the magnitude of this bending force is determined by the magnitude of the load, the magnitude of the drag of the left damper 10 and the geometrical conditions of the device, the left vertical load sensor 21
By measuring the bending force, that is, the bending stress of the strain generating portion 25, the load by the left foot can be detected.

As described above, as the second embodiment, the left,
Although the right vertical load sensors 21 and 22 are used, as another method for measuring the leg load applied to the left and right steps 2 and 3, the entire apparatus load is detected by one or more load detecting means. A method for detecting an axial load on the rotating shaft of the left and right step forward support arms 4, 6 or the left and right step rear support arms 5, 7 or both;
Alternatively, any method may be used, such as a method of detecting the axial load in the mounting portions of the left and right dampers 10 and 11, or a method of obtaining load information from acceleration information using an acceleration detecting unit for load detection.

[0110]

As described above, the exercise evaluation device of the present invention
Since the result of the exercise can be evaluated by detecting the load by the left and right legs during exercise, the result of the exercise can be notified, so that the load burden on the left or right foot during exercise, left / right balance, exercise calories,
Exercise suitability, body condition detection and fault detection are enabled.

[0111] Also, since various kinds of information on the exercise state can be provided to the user, the user can easily check the exercise contents, effects and states, and based on the information, effective exercise can be performed. You can practice with peace of mind.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a foot exercise device equipped with an exercise evaluation device as a first embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of left and right load detecting means in FIG. 1;

FIG. 3 is a cross-sectional view of a connection portion between the left and right load adjustment units and the left and right step front support arms in FIG. 1;

FIG. 4 is a detailed view of a display notification unit of FIG. 1;

FIG. 5 is a block diagram of the exercise evaluation device according to the first embodiment of the present invention;

FIG. 6 is a waveform diagram extracted by a waveform processing unit.

FIG. 7 is a diagram of a peak detection circuit.

FIG. 8 is a waveform chart showing processing by a peak detection circuit.

FIG. 9 is a waveform chart showing processing by a balance evaluation unit.

FIG. 10 is a correlation diagram between the loads applied to the left and right steps and the speeds of the left and right dampers.

FIG. 11 is a waveform chart showing processing by the exercise fitness evaluation means.

FIG. 12 is a waveform chart showing a process performed by a body condition detection unit.

FIG. 13 is a waveform chart showing processing by the failure detection means.

FIG. 14 is a waveform chart showing a process performed by a failure detection unit when an impact load is detected.

FIG. 15 is a schematic configuration diagram of a stepping exercise device equipped with an exercise evaluation device as a second embodiment of the present invention.

16 is a vertical sectional view of the left and right vertical load sensors of FIG.

FIG. 17 is an external view of a portable weight scale as a conventional example.

FIG. 18 is a block diagram of a portable weight scale as a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Footstep exercise device main body 2 Left step 3 Right step 4 Left step front support arm 4a Support arm upper side 4b Support arm lower side 5 Left step rear support arm 6 Right step front support arm 7 Right step rear support arm 8 Pulley 9 Wire 10 Left damper 11 Right damper 12 Buffer stopper 13 Handle 14 Display notification unit 15 Left load adjustment unit 16 Right load adjustment unit 19 Left load detection means 20 Right load detection means 21 Left vertical load sensor 22 Right vertical load sensor 23 Position detection means 24 Lower Case 25 Strain-generating part 26 Upper case 27 Surface sheet 28 Bolt 29 Strain gauge 30 Lead wire 31 Relay connector 32 Signal line 35 Amplifying part 36 Waveform processing part 37 Motion evaluation means 37a Weight detection means 37b Load burden evaluation means 37c Balance evaluation means 37d balance Adjusting means 37e Calorie expenditure calculating means 37f Exercise fitness evaluation means 37g Physical condition detecting means 37h Failure detecting means 41 Display section 42 Numerical input keys 43 Selection switch 44 Decision input switch 45 Speaker 50 Peak detection circuit 51 Diode 52 Capacitor 53 Resistance 54 Input Voltage 55 Output voltage 61 First waveform 62 Second waveform 63 Peak value of first waveform 64 Peak value of second waveform 71 Third continuous waveform 72 Peak detection waveform of third continuous waveform 81 Fourth right load waveform 82 Fifth left Load waveform 83 Load threshold 84 Time width TR 85 Time width TL 86 Correlation curve 87 6th load waveform 88 7th ideal load waveform 89 Ideal deviation area 90 8th abnormal body load waveform 91 Initial peak occurrence position 92 Final peak occurrence Position 93 Analysis range 94 Load fluctuation width 101 Ninth normal Hour waveform 102 Tenth failure waveform 103 Ninth normal waveform time width 104 10th failure waveform time width 110 11th normal waveform 111 12th failure waveform 112 Peak value 113 Peak value 151 Rail with rack 152 Roller 153 Worm gear 154 Tip bearing 155 Intermediate bearing 156 Reduction first gear 157 Reduction second gear 158 Motor output bearing 159 Motor 160 Motor wiring 161 Relay box 162 Control wiring 201 Portable weight scale 202 Mat-shaped measuring unit 203 Display unit 204 Cable 205 Connector 206 Mounting Placement unit 207 Strain gauge 208 Weight display unit 209 Time display unit 210 Health data display unit 211 Control unit (measurement control unit, display control unit) 212 storage unit

Claims (12)

[Claims] 1. A load detecting means for detecting a load applied at a position where a reaction force is present as an electric signal, a waveform processing unit for extracting a load waveform from the electric signal, and evaluating a motion state based on the load waveform. An exercise evaluation device comprising: exercise evaluation means; and a display notifying unit for notifying a result obtained by the exercise evaluation means. 2. The load detecting means has a function of detecting left and right loads as electric signals, and the exercise evaluating means has a function of evaluating an exercise state based on the left and right load waveforms extracted by the waveform processing unit. The exercise evaluation device according to claim 1, further comprising: 3. The method according to claim 1, wherein the reaction force includes a left step and a right step which are operated by placing a left foot and a right foot during a load exercise, and the load detecting means is attached to the left step and the right step. It has a function of detecting a left load and a right load applied from the left foot and the right foot as an electric signal during exercise, respectively, and the exercise evaluation means is based on the left load waveform and the right load waveform respectively extracted by the waveform processing unit. The exercise evaluation device according to claim 1, further comprising a function of evaluating exercise. 4. The exercise evaluation means includes a weight detection means for detecting a left load value and a right load value from the left load waveform and the right load waveform, respectively, to detect a weight value, and the weight value and the left load value. 4. The exercise evaluation device according to claim 3, further comprising a load-bearing degree evaluating means for evaluating the load-bearing degree of the left foot or the right foot from the right load value. 5. The exercise evaluation means includes weight detection means for detecting a left load value and a right load value from the left load waveform and the right load waveform, respectively. 4. The exercise evaluation device according to claim 3, further comprising: a load-bearing degree evaluating unit that evaluates a load-bearing degree of a left foot or a right foot from the weight value, the left load value, and the right load value. 6. The exercise evaluation device according to claim 3, wherein the exercise evaluation device includes a balance evaluation device that evaluates a left-right balance during exercise from the left load waveform and the right load waveform. Exercise evaluation device. 7. The exercise control device according to claim 1, further comprising a load adjustment unit configured to adjust the load intensity of each of the left step and the right step, and wherein the exercise evaluation unit includes a balance adjustment unit that controls the right load adjustment unit. Item 7. The exercise evaluation device according to item 6. 8. The exercise evaluation means according to claim 3, further comprising: a calorie consumption calculating means for calculating calorie consumption during exercise from the left load waveform and the right load waveform. Exercise evaluation device. 9. The exercise fitness evaluation means comprises exercise fitness evaluation means for evaluating fitness of exercise from the left load waveform and the right load waveform and an ideal waveform for an ideal exercise. 9. The exercise evaluation device according to any one of 3 to 8. 10. The exercise evaluation means according to claim 3, further comprising: a physical condition detecting device for detecting a physical condition during exercise from the left load waveform and the right load waveform. Exercise evaluation device. 11. The motion evaluation device according to claim 3, wherein the motion evaluation device includes a failure detection device that detects a device failure from the left load waveform and the right load waveform. apparatus. 12. The exercise evaluation device according to claim 3, further comprising a position detecting means for detecting an operation position of the left step and the right step.