KR102060328B1 - Maximum muscular strength measuring device - Google Patents

Abstract

A maximum strength measuring apparatus is disclosed. Maximum strength measurement apparatus according to an embodiment of the present invention is connected to at least a portion of the weight mechanism, the motor unit for pulling at least a portion of the weight mechanism in a direction opposite to the direction of the user's body with respect to the weight mechanism; A pressure sensor for sensing a pressure value applied to the weight apparatus by a user's body; A speed sensor detecting a speed value according to the movement of the weight mechanism; And a control module configured to measure the maximum muscle strength (1RM) of the user by driving the motor unit stepwise based on the information received from the pressure sensor and the speed sensor.

Description

MAXIMUM MUSCULAR STRENGTH MEASURING DEVICE}

Various embodiments of the present invention are directed to a device that can be installed in various types of weight mechanism to effectively measure muscle strength.

The strength measuring equipment is typically used to measure the force in the isometric exercise using a gyrometer or back muscle system. This isometric exercise is used to measure maximum strength because it is limited to static movements (eg, long suspension, wall push, etc.).

In other words, in order to measure the strength of the muscle can be measured more precisely by measuring the activity range from the maximum relaxation of the muscle to the maximum contraction, until now most of the current situation is using the strength measurement equipment using isometric exercise.

Therefore, there is an increasing need for an apparatus for measuring muscle strength in consideration of isotonic exercise (eg, weight training operation such as bench press and squat), not limited to isometric exercise.

On the other hand, 1RM (1 Repetition Maximum) is a term meaning the heaviest load that can be lifted once in a complete operation, it means a unit of exercise intensity (capacity) used in the resistance exercise. In other words, the force produced by one maximum repetition, one maximum muscle contraction, the maximum weight that can be lifted exactly once, and the strength that can be exerted against the resistance of weight with maximum effort at one time, that is, the ability of the muscle Say. In this document, 1RM is referred to as maximum strength.

Conventionally, two methods, a direct measurement method and an indirect measurement method, are used to measure 1RM. That is, the user measured by lifting a proper amount of weight until the maximum muscle power was consumed (direct measurement method) or by constructing a look-up table (indirect measurement method). However, according to the conventional direct measurement method, accurate weight can be calculated, but the measurement process is complicated and it takes considerable time until the measurement is completed. In addition, the user must continue to weigh until the maximum strength is consumed, there is a risk of injury, such as damage to the muscle tissue. On the other hand, in the case of the indirect measurement method can calculate 1RM within a shorter time than the direct measurement method, because it is not possible to take into account the individual differences in physical fitness or physical fitness, there is a disadvantage that the accuracy, validity or reliability of the measurement is low. In addition, since all the muscle strength measuring equipment is applied as one coefficient, there is a problem in that it is not possible to consider the muscle strength difference by equipment or body parts.

In addition, although the 1RM may be measured using the maximum strength measuring device, which is supplemented with the above problems, most of them are expensive and impossible to carry, and there is a problem that the utilization of each joint of the joint cannot be measured anatomically. . In addition, only a separate medical equipment is provided in a hospital or the like to measure the 1RM of the user, there is no method for the user to easily access and check the 1RM, and there is no method for confirming 1RM change or statistical data.

Korean Patent Registration No. 10-1772123, 2017.12.28 Announcement

Accordingly, various embodiments of the present invention have a purpose to provide a muscle strength measuring apparatus that can be combined with the existing weight mechanism to measure the strength of the user relatively simple and accurate.

In addition, it is possible to more efficiently measure the muscle strength for both isotonic and isometric exercise, and to provide a muscle strength measuring apparatus that can measure the maximum muscle force more accurately by controlling the pressure sensor, the speed sensor and the motor unit step by step.

 Problems to be solved by the present invention are not limited to the above-mentioned problems, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

Maximum strength measurement apparatus according to an embodiment of the present invention for solving the above problems is connected to at least a portion of the weight mechanism, at least a portion of the weight mechanism in a direction opposite to the direction of the user's body with respect to the weight mechanism A motor unit for attracting an area; A pressure sensor for sensing a pressure value applied to the weight apparatus by a user's body; A speed sensor detecting a speed value according to the movement of the weight mechanism; And a control module configured to measure the maximum muscle strength (1RM) of the user by driving the motor unit stepwise based on the information received from the pressure sensor and the speed sensor.

In some embodiments, the control module drives the motor unit by an initial motor setting value, the pressure value collected from the pressure sensor is equal to or less than a preset pressure value, and the speed value collected from the speed sensor is a preset speed. If it is greater than or equal to the value, the motor unit can be controlled to attract the weight mechanism more strongly.

In some embodiments, the control module checks whether the pressure value and the velocity value collected for a predetermined time converge in a specific section, and controls the motor unit to pull the weight mechanism more weakly when converging in the specific section. If the collected speed value changes by more than a predetermined speed value, the driving control of the motor unit may be modified.

In some embodiments, when the collected speed value does not change by more than a predetermined speed value, the control module may determine the pressure value as the maximum muscle strength (1RM) of the user.

In some embodiments, the control module may calculate the plurality of maximum muscle strengths by differently setting the initial motor setting values, and determine the average value of the calculated plurality of maximum muscle forces as the final maximum muscle strength.

In some embodiments, the control module may control the motor unit to limit the movement of the weight mechanism when the pressure value collected from the pressure sensor is less than the safety pressure value within a predetermined time.

In some embodiments, the muscle strength measuring apparatus may further include a display module, and output at least one of the maximum muscle strength or muscle strength information according to the pressure value through the display module.

In some embodiments, the display module may be implemented to enable a 360 degree rotation in a panoramic form with respect to the weight mechanism.

In some embodiments, the control module may control the motor unit so that the weight mechanism does not move by the user's body, and store or output the pressure value collected from the pressure sensor as muscle strength information of the isometric exercise.

In some embodiments, the muscle strength measuring device may further include a communication module, and the maximum muscle strength may be transmitted to an external device through the communication module.

Muscle strength measuring apparatus according to an embodiment of the present invention can be coupled to or fixed to the existing weight mechanism to minimize the infrastructure construction cost for strength measurement.

In addition, by controlling the motor unit step by step instead of the existing weight or block, more accurate muscle strength measurement based on isotonic exercise can be performed, and isometric exercise based muscle strength measurement for several body parts can be performed in parallel or independently. Can be.

Effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the following description.

1 is a block diagram of a maximum strength measurement apparatus according to an embodiment of the present invention.
2 to 3 are exemplary views showing a state in which the maximum muscle strength measuring apparatus according to various embodiments of the present invention is coupled to an existing weight mechanism.
4 is a flowchart illustrating a method of measuring the maximum muscle strength in the apparatus for measuring the maximum strength according to an embodiment of the present invention.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In this specification, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, "comprises" and / or "comprising" does not exclude the presence or addition of one or more other components in addition to the mentioned components. Like reference numerals refer to like elements throughout, and "and / or" includes each and all combinations of one or more of the mentioned components. Although "first", "second", etc. are used to describe various components, these components are of course not limited by these terms. These terms are only used to distinguish one component from another. Therefore, of course, the first component mentioned below may be a second component within the technical spirit of the present invention.

When any part of the specification is to "include" any component, this means that it may further include other components, except to exclude other components unless otherwise stated. In addition, the terms "... unit", "module", etc. described in the specification mean a unit for processing at least one function or operation, which may be implemented in hardware or software or a combination of hardware and software. .

Hereinafter, the configuration and physical form of the maximum strength measuring apparatus 10 will be described with reference to FIGS. 1 to 3. 1 is a block diagram of the apparatus for measuring the maximum strength 10, and FIGS. 2 to 3 are exemplary views illustrating a state in which the apparatus for measuring the maximum strength 10 of FIG. 1 is coupled to an existing weight mechanism.

Maximum strength measuring apparatus 10 is functionally as shown in Figure 1 motor 110, pressure sensor 120, speed sensor 130, storage 140, communication module 150, display module 160 and It may include a control module 170. According to various embodiments of the present disclosure, the maximum strength measuring apparatus 10 may omit at least some of the components of FIG. 1 or further include additional components (eg, an audio output module, a power supply module, etc.).

The maximum strength measuring apparatus 10 is coupled to or installed in an existing weight apparatus, so that the user may naturally measure the strength information or the maximum strength while performing the weight exercise. For example, the maximum strength measuring apparatus 10 may be implemented to be installed or coupled to a weight mechanism as shown in FIGS. 2 to 3 in a form including a main body box 100 and a display apparatus 160. The weight mechanism can be implemented by, for example, a Smith machine that can perform various weight movements (eg, bench press, squat, etc.), but is not limited thereto.

The motor unit 110 of FIG. 1 is connected to at least a portion of a weight mechanism (for example, a wire, etc.), and under the control of the control module 170, the weight mechanism in a direction opposite to the resistance direction of the user's body with respect to the weight mechanism. It will pull at least some area of. In FIG. 2 and FIG. 3, the motor unit 110 is implemented as an example included in the main body box 100.

The configuration and driving method of the motor unit 110 as described above performs a function to replace the (block) weight of the existing weight mechanism. That is, the conventional weight mechanism is a method in which the user performs a resistance movement by manually adjusting the number of weights that can be supported by the user manually, the embodiment of the present invention in the opposite direction to the resistance movement of the user instead of such weight By pulling a region (eg wire) of the weight mechanism, it replaces the function of the weight. This enables detailed automatic weight control through the control module 170.

According to one embodiment for the implementation of the motor unit 110 as described above, the motor unit 110 is at least one motor (not shown) and connecting means for connecting the motor and the wire provided in the weight mechanism (not shown) ) May be included. The number and type of the motor may be variously modified according to the weight mechanism, and the connection means may include, for example, a pulley, but is not limited thereto.

2 and 3, the motor unit 110 will be described in detail. At least one motor and connecting means (eg, a pulley, etc.) are provided in the main body box 100, and a part of the weight mechanism (eg, A wire (see FIG. 3) located in an area adjacent to the pillar is connected to the motor unit 110 of the main body box 100.

The user may move some of the weight device or the weight device by applying a force in some direction (eg, A direction) of the weight device (eg, bar) to measure muscle strength. In this case, the A direction is the resistance direction of the user's body for operating the weight mechanism. The motor unit 110 generates a tension for pulling the weight mechanism in a direction opposite to the resistance direction under the control of the control module 170. In this case, one side or both sides of the wire is provided with a U-shaped pulley, it is possible to apply the tension in the direction of resistance (A) or the direction opposite to the resistance direction. Thereby, the muscle force measurement is performed by restricting the movement of the weight mechanism without the weight.

The pressure sensor 120 of FIG. 1 senses the pressure value applied to the weight apparatus by the user's body in real time or at any point in time. The number and type of pressure sensors 120 may also be implemented with various sensors. This pressure sensor 120 is used as a means necessary in the process of measuring the maximum muscle strength, and also prevents safety accidents with safety rings provided in the existing weight mechanism in case the user inadvertently misses the weight mechanism Can be used as a secondary means. In FIGS. 2 and 3, the pressure sensor 120 is described as being included in the main body box 100. However, the pressure sensor 120 is not limited thereto, and the pressure sensor may be attached to a specific configuration (eg, bar) in which the user's body is gripped or directly abuts among the weight mechanisms. 120 may be provided. In this case, the pressure sensor 120 may transmit the collected pressure value information to the control module 170 in a wired or wireless manner.

The speed sensor 130 of FIG. 1 detects a speed value of a weight device or a portion of the weight device that is moved by a user in real time or at any time. The number and type of the speed sensors 130 may be implemented by various known sensors. The speed sensor 130 may be used as a means for providing information so that the motor unit 110 may be driven stepwise together with the pressure sensor 120.

In FIGS. 2 and 3, the speed sensor 130 is described as being included in the main body box 100. However, the speed sensor 130 is not limited thereto, and the speed sensor 130 is not limited thereto. The speed sensor 130 may be provided. In this case, the speed sensor 130 may measure the speed by emitting a laser or the like and collect the reflected signal, and transmit the collected speed value information to the control module 170 in a wired or wireless manner.

The storage unit 140 of FIG. 1 may store data received or generated from the control module 170 or other components of the maximum muscle strength measuring apparatus 10. The storage unit 140 may include, for example, a memory, a cache, a buffer, or the like, and may be configured of software, firmware, hardware, or a combination of two or more thereof. According to an embodiment, the storage 140 may include a motor set value, a specific pressure value, a specific speed value, a maximum muscle force, a final maximum muscle force, isotonic or isotonic-based muscle strength information, weight information identification / spec information, and a user. The identification information or various types of contents visualized therefrom may be stored.

The communication module 150 may transmit muscle strength information or maximum muscle strength to an external device (eg, a user terminal or a server). The communication module 150 may be implemented as, for example, a network communication module or a base station communication module, but may also be implemented as a short range communication module (eg, a Wi-Fi module, a Bluetooth module, a Zigbee module, an infrared module, an RF module, etc.). Do.

The display module 160 may display various types of data including muscle strength information or maximum muscle strength. The display module 160 may be implemented as a touch panel, but is not limited thereto. According to an embodiment, the display module 160 may include a frame of approximately 'a' and 'b' shapes connecting one point of the main body box 100 and the display module 160 as shown in FIGS. 2 and 3. It can thereby be implemented to display the information by being able to rotate 360 degrees in a panoramic form with respect to the weight mechanism.

The control module 170 may perform a data processing function of controlling a signal flow between the overall operation such as power supply control of the maximum strength measuring apparatus 10 and an internal configuration of the maximum strength measuring apparatus 10 and processing data. . The control unit may include, for example, at least one processor or MCU.

According to an embodiment, the motor unit 110, the pressure sensor 120, the speed sensor 130, the storage 140, the communication module 150, and the control module 170 are separately as shown in FIG. 2 or 3. The main body box 100 may be packaged and provided in at least one region (eg, an upper portion of the weight mechanism body) of the weight mechanism. However, the components included in the main body box 100 and the position of the main body box 100 are not limited as shown in FIGS. 2 and 3.

The muscular strength measuring apparatus 100 configured as described above may measure the maximum muscular strength of the user by the stepwise driving of the motor unit 110. This will be described later with reference to FIG. 4.

In addition, according to one embodiment, the muscle strength measuring apparatus 100 may control the driving of the motor unit 110 so that the weight mechanism does not move even with the maximum force that the user can apply to the object. The maximum force as described above may be set using statistical information or may be set to the maximum output value of the motor constituting the motor unit. As a result, the user may apply a force to the fixed weight device, and the muscle force information based on the isometric motion may be calculated by the pressure sensor 120 detecting the weight device. In this case, according to the type of weight mechanism or the components included in the weight mechanism, muscle strength measurement methods using various bodies may be used.

The combined form of FIGS. 2 to 3 as described above is by way of example only, and the maximum strength measuring apparatus 10 according to various embodiments of the present disclosure is not limited to the form according to FIGS. 2 to 3.

Hereinafter, the method of measuring the maximum muscle strength using the isotonic exercise through the configuration of FIGS. 1 to 3 as described above will be described with reference to FIG. 4. 4 is a flow chart of a method for measuring the maximum muscle strength in the maximum muscle strength measuring apparatus 10 according to an embodiment of the present invention.

First, the user is positioned in the maximum muscle strength measuring device 10 to hold the posture and apply a force to the weight mechanism to start the muscle strength measurement. In this case, the control module 170 limits the movement of the weight mechanism by driving the motor unit 110 according to the motor set value (S410). Initially, the motor unit 110 is driven according to the initial motor setting value. The initial motor setting value may be applied to an appropriate value after the trainer or measurement manager around the user visually checks the user to measure the muscle strength. However, the present invention is not limited thereto, and the control module 170 may apply an initial motor setting value based on average information. For example, the control module 170 automatically refers to the initial motor setting value table for each user information (eg, age, height, weight, etc.) stored in the storage 140 and automatically transmits the initial motor setting value to the motor unit 110. May be authorized.

Next, the control module 170 may determine whether the pressure value currently collected by the pressure sensor 120 is equal to or less than a specific pressure value (eg, the first pressure value) (S420). This first pressure value may be appropriately set by an administrator or the like as a reference index for allowing the user to have higher muscle strength. If the pressure value being collected is equal to or less than the first pressure value, the control module 170 may change the motor setting value to attract the weight mechanism more strongly (S430) and thus drive the motor unit 110. In other words, if the user lifts the weight mechanism (e.g. bar) too easily, the motor setpoint is changed by the same reason as the weight is lifted further.

On the contrary, if the currently collected pressure value exceeds the first pressure value, the control module 170 may determine whether the speed value currently collected by the speed sensor 130 is greater than or equal to a preset first speed value. There is (S440). Although the first speed value is consumed by the user to some extent, the weight mechanism (for example, a bar) is moved at a relatively high speed, and thus the first speed value may be used as a reference index for inducing stronger muscle power. Likewise, the first speed value may be appropriately set by the administrator.

If the currently collected speed value is equal to or greater than the first predetermined speed value, the control module 170 may branch to the operation of step S430 to set the motor set value higher (higher tension is applied).

On the contrary, if the currently collected speed value is less than the first predetermined speed value, the control module 170 may check whether the pressure value and the speed value collected for a predetermined time converge in a specific section (S450). This determination operation is a process in which the user checks whether the state is completed from the maximum contraction to the maximum contraction. For example, if the user lifts the weight device (for example, bar) and all the arms are open, the motion value and the speed value will converge in a certain section because there is no motion or slight motion.

If the data in which the pressure value and the speed value converge in the specific section is not confirmed for a predetermined time, the control module 170 may branch to step S410 to change the motor set value.

If the pressure value and the speed value converge in a specific section for a predetermined time, the control module 170 may change the motor set value to attract the weight mechanism more weakly (S460). The step of S460 is an additional verification process to check if the user stops in the middle because no more muscle power is available until the maximum contraction is reached. In this case, the motor unit 110 that pulls the weight mechanism is driven more weakly to induce the user's body to use the muscle force up to the maximum contraction state. In order to determine this, the control module 170 may check whether the speed value collected when the motor unit 110 is driven more weakly changes the first speed value or more (S470). If the collected speed value changes by more than the first speed value, since contraction is stopped in the middle, the process branches to step S410 to allow the motor unit 110 to be driven by the above-described process.

If the speed value is insignificant despite the step S460 (that is, less than the first speed value), the control module 170 may determine that the maximum contraction is completed, and record and display the corresponding muscle strength information as the maximum muscle strength ( S480). In this case, the maximum muscle power may be a value obtained by converting the force (torque) of the motor measured by the control module 170 into a unit of weight (Kg).

According to one embodiment, in step S470, the first speed value is used as a reference value to verify whether the maximum shrinkage is completed, but it is also possible to compare the reference value with a value smaller or higher than the first speed value. .

In addition, in FIG. 4, although the final maximum muscle strength is determined in operation S480, an additional verification step may be performed. For example, in the state where the motor set value calculation of the control module 170 is not completed, the weight mechanism is momentarily moved to the maximum contraction, and in this case, if the condition of step S460 is satisfied, the value other than the maximum muscular strength is noise. Can occur.

To compensate for this, the control module 170 calculates the maximum muscle power calculated in the step S480 as the first maximum muscle power, sets the initial motor setting value differently (for example, higher), and N times each step of FIG. 4. N maximum muscle strengths can be calculated. When a certain amount of data is accumulated, the control module 170 may derive an average value by dividing the sum of the Nth maximum strengths from the first maximum strength by N, and calculate the derived average value as the final maximum strength.

Although not shown in FIG. 4, according to one embodiment, the control module 170 may preset the safety pressure value. This safety pressure value is used for safety means for controlling the drive of the motor part when the user inadvertently misses the weight mechanism. For example, the control module 170 may control the motor unit 110 to limit the movement of the weight mechanism when the pressure value collected from the pressure sensor is less than the safety pressure value within a predetermined time. Thereby, it is possible to minimize the injury of the user during the strength measurement with the safety ring pre-installed in the weight mechanism.

The above-described maximum strength measuring apparatus 10 of FIGS. 1 to 4 can minimize the cost of building an infrastructure for measuring the strength, can perform more accurate muscle-based measurement based on isotonic exercise, and target various body parts. Isometric exercise-based muscle strength measurements can also be performed in parallel or independently.

The steps of a method or algorithm described in connection with an embodiment of the present invention may be implemented directly in hardware, in a software module executed by hardware, or by a combination thereof. The software module may be a random access memory (RAM), read only memory (ROM), erasable programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), flash memory, hard disk, removable disk, CD-ROM, or It may reside in any form of computer readable recording medium well known in the art.

In the above, embodiments of the present invention have been described with reference to the accompanying drawings, but those skilled in the art to which the present invention pertains may realize the present invention in other specific forms without changing the technical spirit or essential features thereof. I can understand that. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive.

10: muscle strength measuring device 100: main body box
110: motor unit 120: pressure sensor
130: speed sensor 140: storage unit
150: communication module 160: display module
170: control module

Claims (10)

Maximum strength measuring device,
A motor unit connected to at least a portion of the weight mechanism and attracting at least a portion of the weight mechanism in a direction opposite to a direction of resistance of the user's body with respect to the weight mechanism;
A pressure sensor for sensing a pressure value applied to the weight apparatus by a user's body;
A speed sensor detecting a speed value according to the movement of the weight mechanism; And
It includes a control module for measuring the maximum muscle strength (1RM) of the user by stepwise driving the motor unit based on the information received from the pressure sensor and the speed sensor,
The control module,
The motor unit is driven by an initial motor setting value obtained by referring to an initial motor setting value table for each user information previously stored.
When the pressure value collected from the pressure sensor is equal to or less than a preset pressure value, or when the collected pressure value exceeds a preset pressure value and the speed value collected from the speed sensor is equal to or greater than a preset speed value, To control the motor unit to draw more strongly,
When the collected pressure value exceeds a preset pressure value and the collected speed value does not change more than a preset speed value, check whether the collected pressure value and speed value converge for a predetermined time period, and specify After converging in the section, the motor unit is controlled to pull the weight mechanism more weakly, and when the collected speed value changes by more than a predetermined speed value, the driving control of the motor unit is corrected.
And the pressure value is determined as the maximum muscle strength (1RM) of the user when the collected speed value does not change by more than a predetermined speed value. delete delete delete The method of claim 1,
The control module,
And calculating the plurality of maximum muscle strengths by differently setting the initial motor setting values, and determining the average value of the calculated plurality of maximum muscle strengths as final maximum muscle strength. The method of claim 5,
The control module,
And the motor unit to control the motor unit to limit the movement of the weight mechanism when the pressure value collected from the pressure sensor becomes less than the safety pressure value within a predetermined time. The method of claim 1,
And a display module configured to output at least one of muscle strength information according to the maximum muscle strength or the pressure value. The method of claim 7, wherein
The display module is implemented to enable a 360-degree rotation in the form of a panorama with respect to the weight mechanism, the maximum muscle strength measuring apparatus. The method of claim 1,
The control module,
Control the motor unit such that the weight mechanism is not moved by the user's body,
And store or output the pressure value collected from the pressure sensor as strength information of isometric exercise. The method of claim 1,
And a communication module for transmitting the maximum muscle strength to an external device.

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