KR101804273B1

KR101804273B1 - Apparatus and method of measuring physical fitness

Info

Publication number: KR101804273B1
Application number: KR1020150124700A
Authority: KR
Inventors: 정유석
Original assignee: 주식회사 휘트닷라이프
Priority date: 2015-09-03
Filing date: 2015-09-03
Publication date: 2017-12-04
Also published as: KR20170027995A

Abstract

A physical strength measuring apparatus and method are disclosed. The fitness measuring apparatus according to an embodiment of the present invention includes an activity measuring unit for measuring an activity amount of a user according to a user's body motion; A heart rate measuring unit for measuring a heart rate of a user according to a user's body motion; And a physical strength measuring unit for measuring the physical strength of the user based on the amount of activity of the user and the heart rate of the user.

Description

[0001] APPARATUS AND METHOD OF MEASURING PHYSICAL FITNESS [0002]

The present invention relates to a physical strength measuring apparatus and method, and more particularly, to a physical strength measuring apparatus and method for measuring a physical strength of a user simply and accurately through measurement of a user's activity amount and heart rate.

Systemic aerobic exercise plays a very important role in health promotion, prevention, treatment and rehabilitation of the individual.

In sports medicine, the guidelines for the whole body aerobic exercise for each individual are made according to the individual's physical fitness and illness. The guidelines of the American College of Sports Medicine (ACSM), which are used as guidelines for this systemic aerobic exercise,

According to the American Academy of Sports Medicine's (ACSM) disease-specific exercise guidelines, a systemic aerobic exercise for diabetic patients is 50 to 80% of their physical strength, exercised once a day, 20 to 60 minutes And is guided to exercise 4 to 7 days a week.

In the end, it is important to know how much physical strength is in order to give guidelines for personalized aerobic exercise.

In order to know such a physical strength, a user's physical strength should be measured. Typical physical strength measuring methods include a physical strength measuring method using a breathing gas analyzer or the like, and a physical strength measuring method by a physician such as a doctor.

The physical strength measurement method using the measurement equipment such as the respiratory gas analyzer and the like uses the measurement equipment such as the expensive respiratory gas analyzer for measuring the physical strength, so that a large cost is incurred in the measurement of the physical strength. Also, And inconvenience and hassle to move.

The method of measuring physical fitness by an expert is a method of judging physical fitness so that the expert can review the situation of the user's sex, age, constitution, exercise experience, living environment, and eating habits in order to guide the exercise prescription or life prescription in the future . However, in the method of measuring the physical strength by an expert, various items must be considered, and it is troublesome and inconvenient to individually examine or measure these items.

As a result, a method of measuring physical strength using a measuring instrument such as a respiratory gas analyzer and a method of measuring physical strength by an expert can be worn as glasses, a watch, clothes, etc., It is difficult to apply it directly to a wearable device which is a device.

A prior art document related to the present invention is Korean Patent Application No. 10-2010-0119363 (published on November 09, 2010).

In order to solve the problems of the prior art described above, a problem to be solved by the present invention is to provide an apparatus and method for measuring a physical strength by measuring a user's physical strength by using an activity amount and a heart rate and using the measured physical strength as a guide for general aerobic exercise .

The solution of the present invention is not limited to the above-mentioned solutions, and other solutions not mentioned can be clearly understood by those skilled in the art from the following description.

According to one aspect of the present invention, there is provided an apparatus for measuring physical activity, comprising: an activity measuring unit for measuring an activity of a user according to a user's body motion; A heart rate measuring unit for measuring a heart rate of a user according to a user's body motion; And a physical strength measuring unit for measuring the physical strength of the user based on the amount of activity of the user and the heart rate of the user.

The fitness measuring unit may measure a maximum heart rate which is a heart rate of a user who does not fluctuate in a state where the activity amount of the user is varied and may calculate the fitness of the user using the activity amount of the user during the duration of the maximum heart rate .

The amount of activity of the user can be measured by the user's calorie consumption or activity intensity in MET.

According to another aspect of the present invention, there is provided a method of measuring physical strength, comprising: measuring a user's activity amount according to a user's body motion; Measuring a user's heart rate according to a user's body movement; And measuring the user's physical strength using the activity amount of the user and the heart rate of the user.

Wherein the step of measuring the user's physical strength comprises the steps of measuring a maximum heart rate, which is a heart rate of a user who is not fluctuating in a state in which the activity amount of the user is fluctuated, and measuring the user's physical strength by using the activity amount of the user during the duration of the maximum heart rate Can be calculated.

According to the apparatus and method for measuring physical strength according to the embodiment of the present invention, the physical strength of the user can be easily and accurately measured by measuring the physical strength of the user through the measurement of the activity amount and the heart rate of the user.

1 is a block diagram of a fitness measuring apparatus according to an embodiment of the present invention.
2 is a flowchart of a physical strength measurement method according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Embodiments of the present invention are provided to more fully describe the present invention to those skilled in the art, and the following embodiments may be modified in various other forms, The present invention is not limited to the following embodiments. Rather, these embodiments are provided so that this disclosure will be more thorough and complete, and will fully convey the concept of the invention to those skilled in the art.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a", "an," and "the" include plural forms unless the context clearly dictates otherwise. Also, " comprise "and / or" comprising "when used herein should be interpreted as specifying the presence of stated shapes, numbers, steps, operations, elements, elements, and / And does not preclude the presence or addition of one or more other features, integers, operations, elements, elements, and / or groups. As used herein, the term "and / or" includes any and all combinations of one or more of the listed items.

Although the terms first, second, etc. are used herein to describe various elements, regions and / or regions, it should be understood that these elements, components, regions, layers and / Do. These terms do not imply any particular order, top, bottom, or top row, and are used only to distinguish one member, region, or region from another member, region, or region. Thus, the first member, region or region described below may refer to a second member, region or region without departing from the teachings of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings schematically showing embodiments of the present invention. In the figures, for example, variations in the shape shown may be expected, depending on manufacturing techniques and / or tolerances. Accordingly, embodiments of the present invention should not be construed as limited to any particular shape of the regions illustrated herein, including, for example, variations in shape resulting from manufacturing.

1 is a block diagram of a fitness measuring apparatus according to an embodiment of the present invention.

Referring to FIG. 1, a physical strength measuring apparatus according to an embodiment of the present invention includes an activity measuring unit 100, a heart rate measuring unit 200, a physical strength measuring unit 300, and an output unit 400.

The activity measuring unit 100 measures the amount of activity of the user according to the user's body motion. At this time, the user's activity amount can be measured by the calorie consumption or the activity intensity of MET. Hereinafter, a configuration in the case where the amount of calories to be consumed is measured will be described with reference to an embodiment.

The photographing amount measuring section 100 includes a momentum detecting section 102 and a calorie consumption calculating section 104.

The exercise quantity detecting unit 102 detects a quantity of exercise according to the user's body movements. In detail, the momentum detection unit 102 extracts three axes gravity acceleration at three axes acceleration measured by an acceleration sensor and calculates a momentum at which an altitude varying according to a user's motion position is reflected using the three axes acceleration and the three axes gravity acceleration Can be detected.

To this end, the momentum detection unit 102 includes an acceleration sensor for measuring and outputting three-axis acceleration according to a user's body motion, a three-axis acceleration sensor for measuring acceleration, A gravity acceleration extracting unit for extracting gravity acceleration from the three axes, a pure acceleration calculating unit for calculating three axes of pure activity by removing the triaxial gravity acceleration from the accelerations of the three axes, And an altitude reflection acceleration calculating unit for calculating a three-axis acceleration that reflects the altitude.

At this time, the altitude reflection acceleration calculation unit may calculate the three-axis acceleration in which the altitude is reflected by applying the gravity acceleration of the three axes as the weight of the acceleration of the three pure activity axes. More specifically, the altitude reflection acceleration calculation unit calculates the altitude reflection acceleration by the x, y, and z axes

Axis acceleration (WAx, WAy, WAz) that reflects the altitude can be calculated using the equation. At this time,

Are pure action acceleration and have the same or different values from axis to axis,

Are gravity acceleration values that are the same or different from each other for each axis,

Is an altitude reflection acceleration calculation weight and has the same value or different value from axis to axis,

Is an elevation reflected acceleration constant and may have the same value or different value from axis to axis.

Therefore, the gravity acceleration is obtained from the acceleration measured using only the acceleration sensor, and is given as the weight of the pure activity acceleration,

It is possible to obtain the height h from the relationship. Since the gravitational acceleration extracted by the gravitational acceleration extraction unit is in inverse proportion to the square value of the altitude, the acceleration calculated by the altitude reflection acceleration calculation unit can be obtained by extracting the gravitational acceleration extracted by the gravitational acceleration extraction unit from the pure acceleration extraction unit Is calculated and provided as the weight of the pure acceleration, resulting in the altitude being finally reflected.

The momentum detector 102 may calculate the momentum with the altitude reflected using the following equation (1).

At this time

Is the momentum at which the altitude is reflected,

Is an acceleration reflecting the altitude of the x-axis,

Is an acceleration reflecting the altitude of the y axis,

Is an acceleration reflecting the altitude of the z-axis.

As described above, the momentum detector 102 outputs the momentum with the altitude reflected, which is only one embodiment, and may output a momentum that does not reflect the altitude according to system performance or design specifications.

The calorie expenditure calculating unit 104 calculates a calorie consumption amount that reflects an altitude varying according to a user's movement position, using the momentum to be detected by the momentum detecting unit 102 and the weight of the user. In one embodiment, the calorie consumption calculating unit 104 calculates the calorie consumption per Kg using the exercise amount detected by the exercise amount detecting unit 102 using the following equation (2), and calculates the calorie consumption per Kg So that the calorie consumption of the user can be calculated.

At this time

Is the calorie consumption per Kg,

Is the momentum detected by the momentum detecting unit 1,

Is the altitude calorie calculation weight,

Is a highly reflective calorie output constant. Height Calculation Weight Calculation

And high calorie calorie constant

Was obtained by referring to clinical trial data,

0.00094,

Can have -7.37418, but this is just one example.

In this way, the activity measuring unit 100 can accurately measure the calorie consumption according to the user's movement by measuring the calorie consumption according to the movement of the user by reflecting the altitude change using the acceleration sensor.

1, the heart rate measuring unit 200 measures a heart rate of a user according to a user's body motion. At this time, the heart rate measuring unit 200 may measure the heart rate using a PPG method using an optical sensor, an ECG method using a two-electrode chest sensor, or an acceleration sensor and an infrared sensor.

In the case where the acceleration sensor and the infrared sensor are used, the heart rate measuring unit 200 may include an acceleration sensor for sensing movement of a user, an infrared sensor for measuring blood flow, A filter that removes a signal output from the sensor (a signal output from the acceleration sensor according to a user's movement), and a heart rate calculator that calculates a heart rate based on the blood flow signal output from the filter.

The fitness measuring unit 300 measures the user's fitness by using the user activity amount output from the activity measuring unit 100 and the heart rate of the user output from the heart rate measuring unit 200.

In one embodiment, the fitness measuring unit 300 may measure the maximum heart rate, which is the heart rate of a user who does not fluctuate in a state in which the amount of activity of the user is fluctuated, and may use the amount of activity of the user during the duration of the maximum heart rate, The physical strength of the user can be calculated. At this time, the state where the amount of activity of the user is changed means that the amount of activity of the user is increasing. And the maximum heart rate, which is the heart rate of an unchanging user, may represent a heart rate that is no longer increasing due to the user's physical limitations.

Hereinafter, the reason why the user's fitness is calculated by using the user's maximum heart rate and the user's activity during the duration of the maximum heart rate will be described.

The physical strength in the whole body aerobic exercise means a maximum oxygen absorption amount for a predetermined time, and the maximum oxygen absorption amount for a predetermined time has a proportional relation with a maximum calorie consumption amount within a predetermined time.

Generally, the oxygen uptake is proportional to the calorie consumption, so the oxygen uptake can be deduced from activity measurement, that is, calorie consumption measurement. However, since the activity measurement can not determine whether the user has moved to the maximum heart rate, the maximum oxygen absorption amount can not be accurately measured.

Therefore, when you combine heart rate measurement and activity measurement, you will be able to measure your physical fitness. That is, when the activity increases, the maximum heart rate at the time when the heart rate does not increase any more, that is, the oxygen concentration is maximized, and the user's fitness is measured using the activity (calorie consumption) during the maximum heart rate duration .

The oxygen uptake is proportional to the oxygen uptake. Since the oxygen absorbed through the lungs is supplied through the blood, the oxygen supply is proportional to the amount of blood supplied. And because blood is supplied by heart activity, heartbeat, the supply of blood is proportional to the heart rate. Thus, the oxygen uptake is proportional to the heart rate. However, since the maximum heart rate is limited for each person, the maximum oxygen supply amount and the maximum oxygen absorption amount are limited. That is, when the maximum heart rate, the maximum oxygen uptake is absorbed by the body, and oxygen corresponding to the maximum oxygen uptake is delivered to the body.

The output unit 400 may output the user's physical strength measured by the physical strength measuring unit 300 as visible or audible sound. The output unit 400 may include a display device when it is visually output, and the output unit 400 may include a speaker when outputting an audible sound.

The block diagram of the fitness measuring apparatus according to the embodiment of the present invention shown in FIG. 1 is merely classified in terms of functions, but does not mean an actual implementation method or a hardware method. The one or more configuration modules shown in FIG. 1 may be integrated or subdivided into one or more configuration modules, which will be apparent to those skilled in the art to which the present invention pertains.

In addition, the fitness measuring device according to the embodiment of the present invention can be implemented in the form of a wearable device that can be attached to the user's body, for example, a wristwatch. Accordingly, the user can easily determine the physical strength of the user while moving or exercising while wearing the physical strength measuring device implemented in the form of a wearable device.

FIG. 2 is a flowchart of a physical strength measurement method according to an embodiment of the present invention.

Referring to FIG. 2, the physical strength measuring method according to the embodiment of the present invention can be performed through the physical strength measuring apparatus shown in FIG. 1, but it is not limited to the components of the physical strength measuring apparatus shown in FIG. 1 do.

The activity measuring unit 100 measures a user's activity amount according to a user's body movement (S2). At this time, the amount of the user's activity can be measured by the calorie consumption of the user or the activity intensity of the MET unit.

The heart rate measuring unit 200 measures the heart rate of the user according to the user's body motion (S4).

At this time, measurement of the user's activity and measurement of the user's heart rate can be performed at the same time.

Then, the fitness measuring unit 300 measures the user's fitness by using the measured activity of the user and the measured heart rate of the user (S6).

In this case, the fitness measuring unit 300 measures the maximum heart rate, which is the heart rate of the user who does not change in the state where the activity amount of the user is fluctuated, and calculates the fitness of the user using the activity amount of the user during the duration of the maximum heart rate can do.

The present invention has been described above with reference to the embodiments. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the disclosed embodiments should be considered in an illustrative rather than a restrictive sense. Therefore, the scope of the present invention is not limited to the above-described embodiments, but should be construed to include various embodiments within the scope of the claims and equivalents thereof.

100:
102: momentum detector
104: Calorie consumption calculating unit
200: heart rate measuring unit
300:
400: Output section

Claims

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A physical strength measuring method for measuring a physical strength, which is a maximum oxygen storage amount, for a predetermined time in a whole body aerobic exercise, comprising:
Detecting a user's exercise amount according to a user's body movement and measuring a calorie consumption amount from the exercise amount;
Measuring the user's heart rate according to a user's body movement while measuring the calorie consumption; And
In the case of the oxygen uptake, it is possible to estimate the calorie consumption by measuring the calorie consumption. However, since it is impossible to determine whether the user has moved to the maximum heart rate, The user's fitness is measured by combining the heart rate measurement and the calorie consumption measurement, but the heart rate of the user at the time when the heart rate is not increased further due to the user's physical ability limit Measuring a maximum heart rate and measuring a user's fitness by using a calorie consumption amount during a period in which the maximum heart rate is maintained,
Wherein the calorie consumption is measured by calculating a calorie consumption per kilogram from a momentum of the user's altitude and measuring the calorie consumption by multiplying the calorie consumption per kilogram and the weight of the user.

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1. A physical strength measuring apparatus for measuring a physical strength, which is a maximum oxygen storage amount for a predetermined time in a whole body aerobic exercise, comprising:
An activity measuring unit that detects a user's amount of exercise in accordance with a user's body movement and measures a calorie consumption amount from the exercise amount;
A heart rate measuring unit for measuring the user's heart rate according to a user's body motion while measuring the calorie consumption; And
In the case of the oxygen uptake, it is possible to estimate the calorie consumption by measuring the calorie consumption. However, since it is impossible to determine whether the user has moved to the maximum heart rate, The user's fitness is measured by combining the heart rate measurement and the calorie consumption measurement. However, when the user's physical ability limit is increased to increase the activity level, the heart rate of the user at the time of no further increase in the heart rate And a physical strength measuring unit for measuring a heart rate and measuring a user's physical fitness by using a calorie consumption amount during a period in which the maximum heart rate is maintained,
Wherein the activity measuring unit calculates the calorie consumption per kilogram from the momentum of the user's altitude and measures the calorie consumption by multiplying the calorie consumption per kilogram and the weight of the user.