KR101030444B1 - Method and apparatus for calculating physical strength by using a walking - Google Patents

Abstract

The present invention relates to a fitness estimating apparatus and method that can measure physical fitness more quickly and simply while minimizing restraint on exercise load by using walking, which is one of daily living activities, and through a biometric response measuring unit After measuring the pre-exercise heart rate and the heart rate after the constant speed walking exercise for a predetermined time, and after estimating the maximum oxygen consumption of the test subject based on the pre-exercise heart rate and the heart rate after the constant speed walking exercise, the estimated maximum It is implemented to evaluate the physical fitness of the subject through the oxygen consumption, and in addition, to maintain the subject's constant walking, a constant speed alarm signal that can control the subject's walking speed and walking time is monitored. Provided at runtime.

Fitness, max oxygen consumption, heart rate, walking,

Description

Fitness method and apparatus for calculating physical strength by walking {Method and apparatus for calculating physical strength by using a walking}

The present invention relates to a method and apparatus for measuring the fitness of the test subject, and more particularly, it is possible to estimate the fitness level of the test subject simply and quickly while minimizing restraint on exercise load through walking, a daily activity. It relates to a fitness estimation method and apparatus using walking.

In general, physical fitness is a basic indicator of a person's physical health and is a basic information for scientific exercise prescription, including cardiorespiratory, muscular strength / endurance, flexibility, and body. It consists of four elements, the whole body endurance of which is the key.

Here, general endurance is comprehensively related to oxygen absorption system such as lung, heart, blood, capillaries, oxygen utilization system of transport system or skeletal muscle tissue, and the superiority of this system endurance is determined by the ability of physical work or oxygen intake depending on aerobic energy. As the age increases, the systemic endurance decreases gradually, but the main factors besides the increase in age are the increase of body fat and weight, the reduction of muscles, the decrease in the amount of physical activity in daily life, and the increase in the morbidity rate. have.

On the other hand, as a method for measuring the existing physical fitness, there are a whole body endurance measurement, exercise load test, basic physical test and the like.

Among these, exercise load test and basic fitness test, using a variety of expensive equipment, by measuring the heart failure during exercise, blood pressure, oxygen intake, heart rate, respiratory rate, lung capacity, ventilation volume, etc. As a method, relatively accurate inspection is possible, but since it requires a lot of expensive equipment, there is a problem in that it is economical and takes a lot of inspection time.

On the other hand, the whole body endurance test is a method of measuring heart rate and body fat after exercising at maximum load, and indirectly measuring physical strength from the above-mentioned method. Although the test method was simplified, the test method was performed until the test subject could no longer perform the exercise, and then the physical reaction was measured by measuring the test subject's biological response. There is a problem that it may be large and still require some inspection time. In particular, in the case of measuring the physical strength of an elderly person or a patient, there is a problem that it is difficult to apply, because it can damage the health and safety of the test subject.

As another method, some methods of estimating the maximum oxygen intake through moderate exercise loads have been proposed. However, this method uses exercise loads of step tests or squat tests. The test should be performed at the staircase, and also by using muscles that are not usually used, there was a limitation in providing discomfort to the user and measuring fitness related to daily life.

Therefore, there is a need for a method or apparatus that can be based on daily activities, minimize the restraint on the exercise load, and can measure physical fitness more quickly and simply.

Accordingly, the present invention, by estimating the fitness of the test subjects through the walk activity, which is a daily life activity, while minimizing restraint on the exercise load compared to the conventional test method, the fitness estimation method using walking that can quickly and simply measure the fitness And an apparatus.

As a means for solving the above problems, a fitness estimation method using walking according to an embodiment of the present invention, the step of measuring the heart rate before exercise; Measuring a heart rate after the constant walking exercise for a predetermined time with respect to the test subject; Estimating the maximum oxygen consumption of the test subject based on the pre-exercise heart rate and the heart rate after the constant walking exercise; And evaluating and outputting the test subject's fitness through the estimated maximum oxygen consumption.

In the fitness estimation method using the walking according to the present invention, before the step of measuring the heart rate after the constant speed walking exercise, in order to maintain the constant speed walking exercise of the test subject, the test subject may recognize at regular intervals for a certain time. The method may further include providing a constant speed maintenance alarm signal.

In addition, the present invention as another means for solving the above problems, the biological response measuring unit for measuring the heart rate of the test subject; A controller of the test subject for estimating the maximum oxygen consumption of the test subject based on the heart rate measured by the biometric response unit and the heart rate after the constant speed walking exercise for a predetermined time, thereby evaluating the fitness of the test subject; And an output unit configured to output the maximum oxygen consumption and the fitness evaluation result estimated by the control unit.

The fitness estimating apparatus according to the present invention provides a constant speed maintenance alarm signal that can be recognized by a test subject at a predetermined interval for a predetermined time in order to maintain a constant speed walking exercise of the test subject under the control of the controller. It further comprises a constant speed holding unit.

의 주기로 제공되는 것을 특징으로 한다. 여기서, T는 정속도 유지 알람 신호 제공 주기이고, B는 검사 대상자의 보폭이고, v_walk는 정속도 걷기 운동의 속도로서,

이고, 상기 v_Bruce 및 θ는 브루스 프로토콜의 3~4 단계중 어느 한 단계에서 규정된 수평부하(운동 속도) 및 수직부하(기울기)이다.In the fitness estimation method and apparatus using the walking according to the present invention, the constant speed alarm signal,

Characterized in that provided in the cycle. Here, T is the period for providing the constant speed alarm signal, B is the stride of the test subject, v _walk is the speed of the constant speed walking motion,

And v _Bruce and θ are horizontal load (speed of movement) and vertical load (tilt) defined in any one of steps 3-4 of the Bruce protocol.

In the method and apparatus for estimating fitness using walking according to the present invention, the constant speed maintenance alarm signal is characterized in that the form of a beep sound or a vibration signal.

에 의해 추정하는 것을 특징으로 한다. 상기 수학식에서, VO_{2 max}는 최대 산소 소모량이고, HRsat은 정속도 걷기 운동후의 심박수이고, HRR은 HRsat - HRrest이고, %HRR은

이고, 상기 HRrest는 운동전 심박수이고, BMI는 몸무게/키²[kg/㎡]이고, HRmax_cal는 220 ― AGE(연령)이고, a~h는 임상 실험 데이터로부터의 도출된 상수이다.Further, in the fitness estimation method and apparatus using the walking, the maximum oxygen consumption is,

It estimates by. In the above equation, VO _{2 max} is the maximum oxygen consumption, HRsat is the heart rate after the constant walking exercise, HRR is HRsat-HRrest, and% HRR is

Where HRrest is pre-exercise heart rate, BMI is weight / height ² [kg / m 2], HRmax_cal is 220-AGE (age), and a-h are constants derived from clinical trial data.

The present invention can minimize the restraint on the exercise load with the existing fitness measurement method, and in addition, the present invention is not limited to the test environment or the state of the test subject by measuring the fitness through a simple walk, which is an everyday life activity. There is an excellent effect that you can measure fitness anytime, anywhere.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in describing in detail the operating principle of the preferred embodiment of the present invention, if it is determined that the detailed description of the related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

In addition, the same reference numerals are used for parts having similar functions and functions throughout the drawings.

In addition, throughout the specification, when a part is 'connected' to another part, it is not only 'directly connected' but also 'indirectly connected' with another element in between. Include. In addition, the term 'comprising' a certain component means that the component may be further included, without excluding the other component unless specifically stated otherwise.

1 is a block diagram showing the configuration of an apparatus for estimating fitness using walking according to a preferred embodiment of the present invention.

Referring to FIG. 1, the fitness estimating apparatus according to the present invention estimates the maximum oxygen consumption of the test subject based on the pre-exercise heart rate of the test subject and the heart rate after the constant speed walking exercise for a predetermined time. The control unit 11 for evaluating the fitness of the test subject, and the constant speed maintenance unit for providing a constant speed maintenance alarm signal that can be recognized by the test subject at a predetermined interval for a predetermined time to support the constant walking exercise of the test subject. (12), a biological response measuring unit 13 for measuring the heart rate of the test subject, and an output unit 14 for outputting the maximum oxygen consumption and physical strength estimated by the control unit.

Hereinafter, the principle of fitness estimation by the fitness estimation apparatus having the above-described configuration will be described.

The present invention basically estimates the oxygen consumption at the maximum exercise load, that is, the maximum oxygen consumption (VO _{2 max} ) of the test subject, from the heart rate in the semi-exercise load state, and measures the fitness of the test subject through the maximum oxygen consumption. In this case, most people use walking exercise, which is a daily life activity, to create a sub-load exercise state. For example, the test subject is allowed to walk for a short time (for example, 1-2 minutes) at a constant speed of 7.8 Km, and then the heart rate is measured.

FIG. 2 is a graph for explaining a fitness estimation principle using walking in the present invention. In FIG. 2, C1 represents a change curve of oxygen consumption according to an increase in exercise load of a test subject, and C2 represents a constant velocity of the test subject. Figure shows the heart rate change curve by walking. The oxygen consumption of the test subject increases exponentially as the exercise load increases and saturates to the maximum oxygen consumption (VO _{2 max} ) at the maximum exercise load.

Meanwhile, as a result of measuring the heart rate while performing the constant speed walking exercise on the test subject, when the constant speed walking exercise is longer than a predetermined time, the heart rate is saturated and maintained almost constant. The average heart rate measured at this time is called HRsat.

Applicant has confirmed, through a number of clinical trials, that there is a constant relationship between heart rate HRsat and maximum oxygen consumption (VO _{2 max} ) after the constant time constant walking exercise, and based on the clinical trial data, constant speed walking exercise A regression equation for estimating the maximum oxygen consumption was derived from the later heart rate HRsat. Equation 1 below represents a regression equation derived from a plurality of clinical trial data by the applicant.

이고, 상기 HRrest는 운동전 심박수이고, BMI는 몸무게/키²[kg/㎡]이고, HRmax_cal는 220 ― AGE(연령)이고, a~h는 기설정된 상수값으로 정의된 파라메터로서, 임상 실험 데이터로부터 도출된다. 예를 들어, 상기에서, a는 0.785로, b는 0.535, c는 0.636, d는 1.692, e는 0.28, f는 1.105, g는 0.28, g는 126.97로 설정되었으나, 이는 더 많은 실험 데이터를 적용할 경우 변화될 수 있다.In Equation 1, VO _{2 max} is the maximum oxygen consumption, HRsat is the heart rate after the constant walking exercise, HRR is HRsat-HRrest,% HRR is

Where HRrest is the pre-exercise heart rate, BMI is the weight / height ² [kg / m 2], HRmax_cal is 220-AGE (age), and a ~ h are parameters defined as preset constants, and clinical trial data Derived from. For example, in the above, a is set to 0.785, b is 0.535, c is 0.636, d is 1.692, e is 0.28, f is 1.105, g is 0.28, g is 126.97, but this applies more experimental data. It can be changed if you do.

Therefore, the control unit 11 estimates the maximum oxygen consumption (VO _{2 max} ) of the test subject from the heart rate HRsat after the constant speed walking exercise and the heart rate HRrest before the exercise, based on Equation 1 described above.

In addition, in the present invention, the load of the constant walking exercise, that is, the walking speed, is set based on the bruce protocol which is generally used for the exercise load electrocardiogram test. More specifically, in order to provide a quasi-maximal load rather than the maximum load, the present invention sets the walking speed such that an exercise load corresponding to steps 3-5 of the Bruce protocol is applied. In this case, since the cyclic load is increased by gradually increasing the speed and the slope in the Bruce protocol, in the present invention, the vertical load (that is, the slope and the slope) defined in the above-mentioned Bruce protocol is converted into a horizontal load so that the Bruce It is preferable to correct the prescribed speed of the protocol, and thus the speed of the constant speed walking is obtained as in Equation 2 below.

In Equation 2, v _Bruce and θ is the horizontal load (motor speed) and vertical loads (slope) provided in any one phase of the steps 3 and 4 of the Bruce protocol, v _walk is used in the physical strength estimating according to the present invention It is the speed of movement of the constant speed walking movement.

In addition, since the present invention estimates the maximum oxygen consumption from the heart rate measured at the semi-load, there is no need to perform a walking exercise up to the maximum load, and the test subject only needs to walk for a time enough to obtain the HRsat. Through a number of clinical trials, the Applicant has confirmed that the HRsat can be obtained after a walking exercise of about 1 to 2 minutes or more at a speed according to the exercise load of the 3-5 steps of the Bruce protocol. Therefore, in the present invention, the test subject can measure his or her physical fitness only by the constant speed walking exercise for about 1 to 2 minutes, and it is necessary to walk for a long time until the maximum load as in the conventional physical fitness measuring method. none.

As described above, the fitness estimating apparatus according to the present invention includes a constant speed maintaining unit 12 to support the test subject to perform the constant speed walking at a set speed for a set time.

The constant speed maintenance unit 12 generates a constant speed maintenance alarm signal recognizable by the user for a predetermined period and a predetermined time, so that the user walks in synchronization with the constant speed maintenance alarm signal. May be implemented as a means for generating a signal in a form recognizable by the test subject, such as a beep or vibration. In addition, the period of the constant speed maintenance alarm signal provided from the constant speed maintaining unit 12 is set based on the set speed set in Equation 2, which is defined as in Equation 3 below.

In Equation 3, T is a constant speed maintenance alarm signal providing period, B is the stride length of the test subject, v _walk is a set walking speed, and is defined as in Equation 2 above.

By outputting the constant speed maintenance alarm signal at the period T described above by the constant speed maintaining unit 12, the test subject may perform a walking exercise constantly at a speed of v _walk in synchronization with the constant speed maintaining alarm signal. It becomes possible.

In addition, when performing the constant speed walking exercise, the test subject is preferably walked by a power walking method while walking both arms up and down after bending both arms at a predetermined angle. In this case, since the stride length is kept constant irrespective of the state of the test subject, the movement speed of the test subject can be more accurately controlled by the constant speed maintaining part 12.

When the fitness estimating apparatus according to the present invention is applied to an exercise machine such as a treadmill capable of constant speed control, the constant speed maintaining part 12 may be omitted.

Subsequently, the biological response measuring unit 13 is a means for measuring a biological response change of the test subject, and more specifically, operates under the control of the controller 11 to measure the heart rate.

The output unit 14 may be implemented as a display device as a means for outputting a result of estimating fitness in a form that can be recognized by a test subject.

The fitness estimating apparatus according to the present invention can be implemented in a portable type so that a test subject can measure fitness regardless of a location or time.

2 is a flowchart showing a fitness estimation method using walking according to an embodiment of the present invention.

Referring to FIG. 2, a fitness estimation method using walking performed through the apparatus of FIG. 1 will be described.

Referring to FIG. 2, when the test by the apparatus of the present invention is started, first, the controller 11 controls the biometric response measurer 13 to measure the pre-exercise heart rate HRrest of the test subject (S310). .

Then, the control unit 11 measures the heart rate HRsat after the constant speed walking exercise of the test subject. Prior to this, in order to induce the test subject to perform the constant speed walking exercise, a constant speed alarm signal is generated for a predetermined period and It is generated for a set time (S320). Here, the constant speed maintenance alarm signal is generated at a period determined according to Equation 3 described above.

Accordingly, the test subject who recognizes the constant speed maintenance alarm signal performs the constant speed walking exercise according to the constant speed maintenance alarm signal (S330).

After a predetermined time has elapsed, when the constant speed walking of the test subject for the required time is completed (S340), the controller 11 controls the biometric response measuring unit 13 to control the constant speed walking of the test subject. After obtaining the heart rate HRsat (S350).

The controller 11 estimates the maximum oxygen consumption of the test subject based on the pre-working heart rate HRrest and the heart rate HRsat after the constant speed walking exercise (S360). Estimation of the maximum oxygen consumption is made as shown in Equation 1 described above.

In addition, the controller 11 indirectly evaluates the test subject's fitness through the estimated maximum oxygen consumption amount, and outputs the result through the output unit 14.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and it is common in the art that various substitutions, modifications, and changes can be made without departing from the technical spirit of the present invention. It will be apparent to those skilled in the art.

1 is a block diagram showing the configuration of an apparatus for estimating fitness using walking according to a preferred embodiment of the present invention.

2 is a graph illustrating the principle of a fitness estimation method using walking according to the present invention.

3 is a flowchart illustrating a fitness estimation method using walking according to a preferred embodiment of the present invention.

Claims (10)

Measuring heart rate before exercise; Measuring a heart rate after the constant walking exercise for a predetermined time with respect to the test subject; Estimating the maximum oxygen consumption of the test subject based on the pre-exercise heart rate and the heart rate after the constant walking exercise; And Evaluating and outputting the test subject's fitness through the estimated maximum oxygen consumption;  Before the step of measuring the heart rate after the constant speed walking exercise, In order to support the constant speed walking exercise of the subject, further comprising the step of providing a constant speed alarm signal that can be recognized by the subject at regular intervals for a certain time, Providing the constant speed alarm signal is

(Where T is the period for providing constant speed alarm signal, B is the stride length of the subject, and v _walk is the set walking speed,

And v _Bruce and θ are the horizontal load (speed of movement) and vertical load (tilt) defined in any one of steps 3-4 of the Bruce protocol.) Estimating fitness using a walk, characterized in that to provide a constant speed alarm signal at a period of. delete delete The method of claim 1, The constant velocity maintaining alarm signal is a fitness sound estimation method using a walk, characterized in that the beep sound or vibration signal. The method of claim 1, wherein estimating the maximum oxygen consumption comprises:

A fitness estimation method using walking, characterized in that for estimating the maximum oxygen consumption. In the above equation, VO _{2 max} is the maximum oxygen consumption, HRsat is the heart rate after the constant walking exercise, HRR is HRsat-HRrest, and% HRR is

Where HRrest is the pre-exercise heart rate, HRmax_cal is 220-AGE (age), BMI is weight / height ² [kg / m 2], and a to h are constant values set when deriving a regression equation through clinical trial data. . A biological response measuring unit measuring a heart rate of the test subject; A controller of the test subject for estimating the maximum oxygen consumption of the test subject based on the pre-exercise heart rate measured by the biometric response measuring unit and the heart rate after the constant speed walking exercise for a predetermined time, and thereby evaluating the fitness of the test subject; And An output unit for outputting the maximum oxygen consumption and stamina estimated by the controller, According to the control of the control unit, in order to support the constant speed walking exercise of the test subject, further includes a constant speed maintaining unit for providing a constant speed maintenance alarm signal that can be recognized by the test subject at a predetermined interval for a predetermined time, The constant speed maintenance unit

(Where T is the period for providing constant speed alarm signal, B is the stride length of the subject, and v _walk is the set walking speed,

And v _Bruce and θ are the horizontal load (speed of movement) and vertical load (tilt) defined in any one of steps 3-4 of the Bruce protocol.) Physical fitness estimation device using a walk, characterized in that to provide a constant speed alarm signal at a cycle of. delete delete The method of claim 6, The constant velocity maintaining alarm signal provided by the constant velocity maintaining unit is a fitness estimation apparatus using a walk, characterized in that the beep or vibration signal. The method of claim 6, wherein the control unit

Fitness estimation apparatus using a walk, characterized in that for estimating the maximum oxygen consumption. In the above equation, VO _{2 max} is the maximum oxygen consumption, HRsat is the heart rate after the constant walking exercise, HRR is HRsat-HRrest, and% HRR is

Where HRrest is the pre-exercise heart rate, HRmax_cal is 220-AGE (age), BMI is weight / height ² [kg / m 2], and a to h are constant values set when deriving a regression equation from clinical trial data.

Images