WO2013002568A2

WO2013002568A2 - Method for suggesting appropriate exercise intensity through estimation of maximal oxygen intake

Info

Publication number: WO2013002568A2
Application number: PCT/KR2012/005111
Authority: WO
Inventors: 임재형
Original assignee: 한국과학기술원
Priority date: 2011-06-30
Filing date: 2012-06-28
Publication date: 2013-01-03
Also published as: WO2013002568A3

Abstract

The present invention relates to a method for suggesting an appropriate exercise intensity through the estimation of maximal oxygen uptake, and more specifically, to a method for calculating a heart rate range corresponding to an appropriate exercise range for a user by inputting information capable of estimating the maximal oxygen uptake of the user using a communication terminal. In addition, the present invention relates to a method for suggesting an appropriate exercise intensity to allow a user to measure heart rate in real time within the heart rate range corresponding to the calculated appropriate exercise range and to exercise on the basis of the type and/or time within the appropriate exercise intensity. According to the present invention, it is possible to calculate the heart rate range corresponding to the appropriate exercise range for a user by inputting the information capable of estimating the maximal oxygen uptake of the user. In addition, another effect of the present invention is that a user can measure heart rate in real time within the heart rate range corresponding to the calculated appropriate exercise range so as to exercise on the basis of the type and/or time within the appropriate exercise intensity.

Description

Method of suggesting the optimal exercise intensity by estimating the maximum oxygen intake

The present invention relates to a method of presenting an appropriate exercise intensity by estimating the maximum oxygen intake, and more particularly, by inputting information for estimating the maximum oxygen intake of a user using a communication terminal based on exercise physiological theory. It is about calculating a heart rate range corresponding to an appropriate exercise range.

The present invention also relates to a method of presenting an appropriate exercise intensity so that a user measures a heart rate within a heart rate range corresponding to a calculated exercise range in real time and exercises according to exercise type and / or time with an appropriate exercise intensity.

Proper exercise reduces the risk of hypokinetic disease and helps maintain and improve motor function, including metabolic strength and endurance flexibility. However, the effect of exercise is the maximum when the exercise and the amount of exercise that is appropriate for you, exercise that is excessive than your exercise function can cause cardiovascular accident with a sharp increase in heart rate and blood pressure.

Therefore, it is very important to know the appropriate amount of exercise and exercise amount for your physical condition. In other words, it is very important to know exactly the level of their motor skills and determine the appropriate exercise intensity. As a method of determining the appropriate exercise intensity for each individual, the relative exercise intensity using the maximum heart rate (% HRmax), the relative exercise intensity using the spare heart rate (% HR Reserve), the relative exercise intensity using the maximum oxygen intake (% VO ₂ max), exercise intensity using VO ₂ reserve, and the like.

On the other hand, exercise function is evaluated using the comprehensive results of various items such as cardiopulmonary function, muscle strength and body composition. The standard method for evaluating cardiopulmonary function is obtained by measuring the Maximum Oxygen Uptake (VO ₂ max).

As a method of directly measuring the maximum oxygen intake, there is a method using a ventilatory gas analysis. However, the direct measurement method is used only for research or clinical purposes because of the high cost required to perform the inspection of equipment, space and personnel. In order to overcome this problem, evaluation of maximum / submaximal motor function has been proposed. This test uses heart rate at specific exercise loads to accurately predict peak oxygen uptake.

At present, the exercise function evaluation, which is performed in some general hospitals and public health centers, uses different equipment for each item and uses various exercise test protocols. Such exercise function evaluation is time-consuming and financially easy for the general public, and it is very unrealistic to perform regular exercise function evaluation to check the effect of exercise.

Accordingly, for those who want to exercise properly and effectively, it is virtually impossible to evaluate their motor function and to know the appropriate amount of exercise accordingly.

For example, if an athlete uses exercise equipment, such as a treadmill, the athlete wants to do a proper exercise without any difficulty in his or her fitness, and continues to exercise to improve his fitness to maintain a healthy life. do. In addition, the athlete wants to keep a record of his or her athletic condition, and based on this recorded exercise history, he wants to train his fitness. In addition, there may be various things in the goal of the athlete, such as endurance, cardiopulmonary function, calorie consumption for the treatment of obesity.

For this reason, a method of controlling the exercise according to the change in the heart rate has been proposed. Patent application No. 10-2000-23432 may be given. This patent application No. 10-2000-23432 provides an exercise system in which the exercise load is controlled according to the change in heart rate.

However, when the exercise ability of the athlete is improved due to improved cardiopulmonary function, the exercise program provided to the athlete must be newly created by the administrator who manages the exercise, so that many clients are connected to the central server. The individual exercise program needs to be renewed and the exercise program may have various errors.

Most other exercise programs do not provide the appropriate exercise intensity for the individual or recommend the wrong method.

An object of the present invention is to provide a method for calculating the heart rate range corresponding to the appropriate exercise range for the user by inputting information for estimating the maximum oxygen intake of the user in order to achieve the problem raised above. .

In addition, another object of the present invention is to provide a method in which a user measures a heart rate within a heart rate range corresponding to a calculated exercise range in real time and exercises according to the exercise type and / or time with an appropriate exercise intensity.

In addition, the use of the cardiovascular equipment such as smartphones, personal digital assistants (PDAs), mini portable media players (PMPs), treadmills for measuring heart rate, bicycle ergometers, ergonomics and rowing machines, etc. There is another purpose to maximize.

In accordance with a first embodiment of the present invention, a method of presenting an appropriate exercise intensity by estimating a maximum oxygen intake amount for achieving the above object includes: inputting a maximum oxygen intake estimation variable for inputting a maximum oxygen intake estimation variable corresponding to a user; A maximum oxygen intake calculation step of calculating a maximum oxygen intake amount of the user using a maximum oxygen intake regression equation according to an input parameter; A fitness class determining step of determining the fitness class according to the calculated maximum oxygen intake; And a heart rate range calculating step of substituting a value corresponding to a predetermined range of the maximum oxygen intake calculated in the maximum oxygen intake regression equation and calculating a heart rate range of the user using a heart rate regression equation.

Here, the maximum oxygen intake regression equation is

VO ₂ max (ml / kg / min) = β0 + β1ｘ1 +... + Βpｘp + ε, ε to N (0, σ2),

Where VO ₂ max (ml / kg / min) is the dependent variable, ｘ1,…, ｘp is the P given dependent variables, β0, β1,…, βp are unknown regression coefficients, ε is the error term Suppose you follow a normal distribution with variance σ ² .

The heart rate regression equation is

HR = AX + B

Where A is the slope, B is the constant, and X is VO ₂ (ml / kg / min)

It is characterized by that.

The independent variables include gender, age, weight, height, body mass index (BMI), bioelectrical impedance analyzer (BIA), resting heart rate, heart rate during submaximal exercise, and submaximal exercise. City respiratory gas parameters, respiratory exchange ratio (RER), energy expenditure, waist circumference, waist-to-hip ratio, physical activity data, Rating of Perceived Exertion (RPE), daily step counts, exercise frequence (sessions per week), Wmax (work max), It is characterized in that it comprises at least one selected from the period of exercise (years of training), the gas exchange threshold (gas exchange threshold), running record 1000m or more, and skeletal muscle mass.

On the other hand, according to the second embodiment of the present invention, the method for presenting an appropriate exercise intensity by estimating the maximum oxygen intake for achieving the above-mentioned problem is performed by measuring the heart rate by the heart rate measuring terminal by measuring the user's heart rate as the user's exercise starts. Generating information; Receiving, by the communication terminal, the generated heart rate measurement information from the heart rate measurement terminal and determining whether the measured heart rate of the heart rate measurement information falls within a range of the heart rate of the user generated by the first embodiment of the present invention; And determining that the communication terminal provides notification information when the communication terminal is out of the heart rate range of the user.

Here, the notification information is characterized in that it includes a guide message for the exercise time and the type of exercise.

According to the present invention, it is possible to calculate the heart rate range corresponding to the appropriate exercise range for the user by inputting information for estimating the maximum oxygen intake of the user.

In addition, another effect of the present invention is that the user can measure the heart rate within the heart rate range corresponding to the calculated exercise range in real time to exercise according to the exercise type and / or time with the appropriate exercise intensity.

1 is a system configuration diagram for suggesting the appropriate exercise intensity by estimating the maximum oxygen intake in accordance with an embodiment of the present invention.

FIG. 2 is a circuit block diagram of the heart rate measuring terminal shown in FIG. 1.

3 is a circuit block diagram of the communication terminal shown in FIG.

4 is a flowchart showing a process of presenting an appropriate exercise intensity by estimating the maximum oxygen intake in accordance with an embodiment of the present invention.

5 is a graph showing the maximum oxygen intake in accordance with an embodiment of the present invention.

6 is a graph showing a heart rate (HR) according to an embodiment of the present invention.

7 is a graph showing the VO ₂ / VCO ₂ relationship according to an embodiment of the present invention.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all changes, equivalents, and substitutes included in the spirit and scope of the present invention. In describing the drawings, similar reference numerals are used for similar elements.

Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component. The term and / or includes a combination of a plurality of related items or any item of a plurality of related items.

A component is "connected" or "connected" to another component

When mentioned, it will be understood that while other components may be directly connected or connected, there may be other components in between. On the other hand, when a component is said to be "directly connected" or "directly connected" to another component, it should be understood that there is no other component in between.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

Hereinafter, a method of presenting a proper exercise intensity by estimating the maximum oxygen intake according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a system configuration diagram for suggesting the appropriate exercise intensity by estimating the maximum oxygen intake in accordance with an embodiment of the present invention. Referring to FIG. 1, a system configuration diagram for suggesting an appropriate exercise intensity includes receiving a heart rate measurement terminal 100 for measuring a user's heart rate and heart rate measurement information measured from the heart rate measurement terminal 100 to obtain a user's exercise intensity. It consists of a communication terminal 120 for monitoring.

Of course, the heart rate measuring terminal 100 may be attached to or detached from the user's body, or may be attached to an exercise device such as a trade mill (ie, a treadmill).

In addition, the communication terminal 120 is a smartphone, a personal digital assistant (PDA), a mini portable media player (PMP), a treadmill capable of measuring heart rate, aerobic exercise equipment such as a bicycle ergometer, a granular medical, a lowing machine, and a portable heart rate. Measuring instrument And so on.

2 is a circuit block diagram of the heart rate measuring terminal 100 shown in FIG. Referring to FIG. 2, the heart rate measuring terminal 100 includes a heart rate measuring unit 210, an operation unit 220, a microprocessor 200, a display unit 240, a memory 230, a wireless transmitter 250, and the like. .

The heart rate measuring unit 210 measures a heart rate of a human body (user) as a heart rate measuring sensor. For convenience, the heart rate measuring unit 210 is displayed as a component of the heart rate measuring terminal 100, but for convenience, the heart rate measuring device may be linked with the existing heart rate measuring device.

The manipulation unit 220 transmits a command to the microprocessor 2000 for the user to select an operation of the heart rate measuring terminal 110. The operation unit 220 may include a general numeric key, a key button for inputting data, a function selection key button, and the like, and do not need to include a key button when the display unit 240 is configured as a touch screen.

The memory 230 is a storage device that stores data, measures a heart rate of a user, transmits the data to a communication terminal (120 of FIG. 1), or stores a program for controlling operations. The memory 230 is implemented as a RAM or a ROM.

The display unit 240 displays a menu screen for an operation state and / or operation of the heart rate measuring terminal 100 and is implemented as a liquid crystal display (LCD), organic light emitting diodes (OLED), a touch screen, or the like. Of course, although the display unit 240 is illustrated in the present invention, the display unit 240 may not be configured.

The wireless transmitter 250 performs a function of wirelessly transmitting the heart rate measurement information processed by the microprocessor 200 and transmitting the wireless heart rate measurement information to the communication terminal 120. As a communication technology between the heart rate measurement terminal (100 in FIG. 1) and the communication terminal (120 in FIG. 1), general radio frequency (RF), Bluetooth communication, infrared communication, and near field communication technology are used. Of course, the present invention can use a wired communication technology as well as a wireless communication technology.

3 is a circuit block diagram of the communication terminal 120 shown in FIG. Referring to FIG. 3, the communication terminal 120 includes: a maximum oxygen intake calculator 330 for calculating a maximum oxygen intake of a user; A heart rate calculator 350 that calculates a heart rate range of the user using the calculated maximum oxygen intake; A communication circuit unit 370 communicating with the wireless communication unit 250 of FIG. 2 to receive heart rate measurement information; A control unit (300) for providing a warning sound and / or a message by determining whether an out of range is compared with a heart rate range of a user calculated using the heart rate measurement information transmitted through the communication circuit unit (370); And a display unit 320 for displaying a warning sound and / or a message or a voice converting unit 360 for outputting the same according to a command of the controller 300.

Of course, in addition to the input unit 310 is provided with a button for the user's command and / or selection, calculate the maximum oxygen intake calculated to calculate the heart rate range of the user and implement the algorithm to compare with the user's heart rate measured in real time And a storage unit 340 for storing an exercise intensity suggestion program, data, and the like.

The exercise intensity suggestion program, data, etc. are transmitted to the communication terminal 120 in an app form using a wireless communication technology. Such communication technologies include WiBro (Wireless Broadband), WiPi (Wireless Internet Platform for Interoperability), Bluetooth, Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), and Global System for Mobile Communications. ), Dedicated short-range communications (DSRC), Infrared Data Association (IrDA), and the like can be used.

The voice converter 360 converts an analog voice of a user into a digital signal or converts a digital signal into an analog signal.

The display unit 320 may include a liquid crystal display (LCD), organic light emitting diodes (OLED), a touch screen, or the like, and the input unit 310 may be omitted in the case of a touch screen.

The maximum oxygen intake calculator 330 calculates a maximum oxygen intake. In other words, when the user inputs the maximum oxygen intake estimation variable using the input unit 310, the maximum oxygen intake of the user is calculated. These maximum oxygen uptake estimates include sex, age, weight, height, body mass index (BMI), Bioelectrical Impedance Analyzer (BIA), resting heart rate, heart rate during submaximal exercise, maximum Respiratory gas parameters, lower respiratory exchange ratio (RER), energy expenditure, waist circumference, waist-to-hip ratio, and physical activity data ), Rating of Perceived Exertion (RPE), Daily Step Counts, Exercise Frequencies (sessions per week), Maximum Work Intensity (Wmax) ), A combination of several independent variables, including at least one of a year of training, a gas exchange threshold, a long running record of 1000 m or more, and skeletal muscle mass. Can be. In this case, for example, a long running of 1000m or more is 1200m long running.

In general, a cardiopulmonary exercise program is an exercise program that provides an appropriate exercise heart rate of an individual to improve cardiopulmonary ability.

Cardiopulmonary capacity refers to the aerobic capacity of the oxygen transport system, such as the heart, lungs, blood vessels of the human body that can supply oxygen to human tissues that require oxygen, 1kg body weight can be ingested for 1 minute Determine the maximum amount that is present, that is, the maximum oxygen intake (VO ₂ Max, ml / kg / min). At this time, the maximum oxygen intake is the maximum oxygen intake capacity that can be achieved by increasing the exercise intensity of the individual, and the maximum amount of oxygen ingested by the individual for one minute can be divided by the weight in ml / kg / minute, and the cardiopulmonary function of the individual It can be used as a key indicator for evaluating

In order to accurately measure the maximum oxygen intake, it is necessary to visit a public health center or a hospital to analyze the gas emission during the respiratory process during exercise. However, it is not easy for the public to make an accurate measurement in terms of cost and time. Various estimation equations are provided, but most of them use foreign data, which is too large to apply to Koreans.

In addition, since oxygen intake and heart rate have a proportional relationship, a first-order regression equation between two variables can be derived.

Appropriate aerobic exercise intensity for an individual's cardiopulmonary function is typically 50% to 85% of the maximum oxygen intake. The regression equation between oxygen intake and heart rate shows the range of heart rate, which corresponds to 50% to 85% of the maximum oxygen intake, so exercise while keeping your heart rate within this range can increase your effectiveness.

Cardiopulmonary evaluation is a method of evaluating the individual's maximum oxygen intake to assess cardiopulmonary capacity, and there are direct measurement and indirect estimation.

The direct measurement method is to measure the maximum load on a treadmill or bicycle ergometer and requires an expensive breathing gas analyzer.

Indirect estimation methods include non-exercise estimation and sub-maximum exercise load test using body index without maximal exercise load test. The sub-maximal exercise load test is a method of estimating cardiopulmonary ability by using individual heart rate and respiratory gas variables, which appear at a comfortable and comfortable exercise intensity.

Heart rate refers to the number of times the heart beats for 1 minute (times / minute) to provide oxygen for the body and is a representative human variable that indicates the difficulty of exercise. Therefore, in order to improve the cardiopulmonary ability, the first measurement and indirect estimation of the maximum oxygen intake that can know the individual's maximum cardiopulmonary capacity, and then it is possible to know the oxygen intake in a certain range of the maximum oxygen intake.

In general, the American College of Sports and Medicine (ACSM) recommends that you work out with a force that requires a certain amount of oxygen intake, which is a certain range of VO ₂ Max. This range is expressed in oxygen intake, such as ml / kg / min. It is not practical.

Therefore, there is a need for a method that can represent the amount of oxygen intake in this range in a practically usable heart rate range.

The sub-maximal exercise load input variables are various respiratory gas variables at 3 or 6 minutes of the Bruce Protocol in the direct evaluation of cardiopulmonary capacity, or the time in seconds when the heart rate reaches 170.

Therefore, the method of inputting the maximum exercise load test variable is based on the Bruce protocol for exercise load test up to 1 step 3 minutes and 2 step 6 minutes in the health prescription room with health center, hospital, research center and other incremental exercise load test equipment. It is an estimation method that exercise prescription service is possible.

If you have a cardiovascular disease or a potential related disease, you should consult a specialist before using this program.

The maximum oxygen intake estimation regression equation for calculating the maximum oxygen intake is as follows.

[Equation 1]

Equation 1 may be derived using various data, a standard statistical software (SPSS) program, and a multiple regression analysis method.

For example, if the basic data are generated using 339 males and females in their 20s (267 males, 72 females) who are physically and mentally healthy, the characteristics of the subjects are shown in Table 1.

Table 1

variable	man		Woman
variable	Mean	SD	Mean	SD
Age (yrs)	20.79	1.265	20.54	.983
Height (cm)	173.997	5.364	161.914	4.542
Weight (kg)	69.177	12.884	52.600	5.728
% Body MassIndex (kg / m ² )	22.950	5.102	20.085	21.28
% Body Fat	17.212	8.595	25.162	6.027

Next, the fitness level by VO ₂ Max (ml / kg / min) is classified as shown in Table 2.

TABLE 2

variable	man		Woman
variable	Mean	SD	Mean	SD
Age (yrs)	20.83	1.295	20.44	.87
Height (cm)	173.95	5.34	162.09	4.75
Weight (kg)	68.82	11.61	52.57	6.03
Body Mass Index (kg / m ² )	22.99	5.48	20.02	2.16

Subsequently, if the male and female are classified into five grades by the K-means clustering procedure provided by the SPSS, classification results as shown in Tables 3 and 4 can be obtained. Here, Table 3 shows the male fitness class classification, and Table 4 shows the female fitness class classification.

TABLE 3

ranking	Grade	5	Grade 4	Grade 3	Grade 2	Grade 1
VO ₂ max interval (ml / kg / min)	28.0 or more but less than 35.7	35.7 or more but less than 40.9	40.9 or more but less than 45.8	45.8 or more but less than 58.5	58.5 or more but less than 62.5
ratio(%)	19.8	32.2	29.5	15.7	2.8

Table 4

ranking	Grade	5	Grade 4	Grade 3	Grade 2	Grade 1
VO ₂ max interval (ml / kg / min)	22.6 or more but less than 30.6	30.6 or more but less than 35.2	35.2 or more but less than 39.5	39.5 or more but less than 46.9	16.9 or more but less than 50.5
ratio(%)	25.3	31.2	26.5	14.3	2.7

It is possible to calculate the maximum oxygen intake estimation regression equation using Table 1 to Table 4 above, look at the model using sex, weight, height, age are shown in Table 5 and Table 6.

Table 5

model		Non-standardization coefficient		Standardization factor	p	Collinearity statistics
model		Standard error	beta	Standardization factor	Tolerance limit	VIF
Model	Constant	14.769	43.922		.003
	gender	1.156	-10.191	-.539	.000	.503	1.989
	Weight	.039	-.143	-.225	.000	.580	1.724
	Height	.077	.117	.108	.130	.435	2.297
	Age	.301	-.096	-.015	.750	.991	1.009

Table 6

model	R	R ²	SEE	F	P
Model	.518	.269	6.66	30.3	.000

Where R is the multiple correlation coefficient, R2 is the variation, and SEE is the standard error of the estimate.

Of course, gender, age, weight, height, body mass index (BMI), Bioelectrical Impedance Analyzer (BIA), resting heart rate, heart rate during submaximal exercise, respiratory gas during submaximal exercise Variables, Respiratory Exchange Ratio (RER), energy expenditure, waist circumference, waist-to-hip ratio, physical activity data, exercise awareness ( RPE: Rating of Perceived Exertion (subjective exercise intensity), daily step counts, exercise frequence (sessions per week), maximum exercise intensity (Wmax: work max), duration of exercise (years) of training, gas exchange threshold, running records over 1000m, and models using skeletal muscle mass.

5 to 7 illustrate graphs of the data analyzed with respect to Tables 1 to 6 above for easy understanding. In other words, Figure 5 is a graph showing the maximum oxygen intake in accordance with an embodiment of the present invention. Referring to FIG. 5, the maximum oxygen uptake is indicated by point 510, and the maximum oxygen uptake after 3 minutes (ie, 00:03:10) is 19.28402 (500). Of course, the maximum oxygen intake after 6 minutes, the maximum oxygen intake at the end point is also present as data, the measurement time can be variously modified.

6 is a graph showing a heart rate (HR) according to an embodiment of the present invention. Referring to Figure 6, it shows the heart rate according to the maximum oxygen intake. For example, after 3 minutes, the maximum oxygen uptake is 19.28402 (600), with heart rate (HR) being 103 bpm (beats per min). The graph shows HR bpm 610 and linear HR bpm 620.

Referring to FIG. 7, after 3 minutes (ie, 00:03:10), VO ₂ (the amount of oxygen at the time of exercise during the exercise test) is 995.0556, and VC0 ₂ (the amount of carbon dioxide at the exhalation during the exercise load test) is 877.9308. (700). The graph shows VC0 ₂ ml / min (710) and VO ₂ ml / min (720).

Using Tables 1 to 6 above, the maximum oxygen intake estimation regression equation as shown in Equation 1 is calculated. Of course, Tables 1 to 6 are shown for easy understanding of the present invention and may be calculated differently according to sample data such as gender, weight, height, and age.

Referring to FIG. 3, the heart rate calculator 350 uses the maximum oxygen intake calculated by the maximum oxygen intake calculator 330 to calculate the relationship between VO ₂ (ml / kg / min) and heart rate HR. It can derive an appropriate level of exercise range for each individual, and calculates the user's heart rate range. In other words, 50% to 85% of the maximum oxygen uptake calculated using the maximum oxygen intake estimation regression equation (ie, Equation 1) is substituted into the heart rate regression equation to correspond to the user's appropriate exercise range. The heart rate range can be calculated. Heart rate regression is as follows.

[Equation 2]

HR = AX + B

Where A is the slope, B is the constant, and X is VO ₂ (ml / kg / min)

These values are shown in the following table.

TABLE 7

Gender grade		Regression (HR = VO ₂ / Kg (ml / min / kg) * A + B)
Gender grade		A	B
male	Grade 1	1.88	85.82
	Grade 2	2.23	74.30
	Grade 3	2.62	67.79
	Grade 4	2.87	72.54
	Grade 5	3.37	72.33
female	Grade 1	2.89	70.33
	Grade 2	3.23	71.37
	Grade 3	3.36	81.76
	Grade 4	3.41	82.21
	Grade 5	3.90	82.34

4 is a flowchart showing a process of presenting an appropriate exercise intensity by estimating the maximum oxygen intake in accordance with an embodiment of the present invention. Referring to FIG. 4, FIG. 4 includes a preparation process before the start of exercise and an exercise execution process.

1) Preparation course for starting exercise

In preparation for starting exercise, a process of calculating the maximum oxygen intake and heart rate range of the user is performed by using the maximum oxygen intake estimation parameter which is information about the user.

To this end, the user inputs a maximum oxygen intake estimation variable corresponding to his information to the communication terminal (120 of FIG. 1) (step S410). In other words, various maximum oxygen intake estimation parameters for estimating the maximum oxygen intake may be input to the communication terminal 120. Independent variables include gender, age, weight, height, body mass index (BMI), bioelectrical impedance analyzer (BIA), resting heart rate, heart rate during submaximal exercise, and submaximal exercise. Respiratory gas parameters, Respiratory Exchange Ratio (RER), energy expenditure, waist circumference, waist-to-hip ratio, physical activity data, exercise awareness Rating of Perceived Exertion (RPE), daily step counts, exercise frequence (sessions per week), maximum exercise intensity (Wmax: work max), duration of exercise (years of training), gas exchange threshold (threshold), a long running record of more than 1000m, and may be composed of a combination of several independent variables including at least one selected from the skeletal muscle mass.

According to the input maximum oxygen intake estimation parameter, the maximum oxygen intake of the user is estimated using the maximum oxygen intake regression equation, and the fitness level is determined accordingly (step S420). The fitness grade is grades 1-5 for men and grades 1-3.

When the fitness level is determined, a value corresponding to a predetermined range of the maximum oxygen intake calculated in the maximum oxygen intake regression equation according to the determined fitness class is substituted, and the heart rate range of the user is calculated using the heart rate regression equation (step S430). ).

In other words, the VO ₂ , HR data is selected according to the determined fitness level, and the regression equation between the two is calculated, and a value corresponding to a certain range of the maximum oxygen intake calculated by the regression equation corresponds to the user's appropriate exercise range. Calculate your heart rate range.

The heart rate range may be displayed through the display unit 320 of FIG. 3 or a guide message may be output through the voice conversion unit 360 of FIG. 3. This heart rate range is a reference value of the user's appropriate exercise intensity.

2) exercise execution process

As the user's exercise starts, the communication terminal 120 of FIG. 1 enters a standby mode for receiving heart rate measurement information measuring the heart rate of the user from the heart rate measuring terminal 100 of FIG. 1 (step S440).

In other words, when the heart rate range is generated by steps S410 to S430, the user notifies the communication terminal 120 that the user is ready to start exercising. Of course, the manner in which the user notifies the communication terminal 120 may select a specific button provided in the input unit 310 of FIG. 3 or make a voice. Alternatively, when the heart rate range of the user is determined, the user may automatically enter the standby mode after a certain time.

The communication terminal 120 (refer to FIG. 1) receives the heart rate measurement information measuring the heart rate of the user from the heart rate measurement terminal 100 and determines whether the measured heart rate of the heart rate measurement information falls within the user's heart rate range (step S450,). S451). Of course, there is a process in which the communication terminal 120 receives the heart rate measurement information from the heart rate measurement terminal 100 in real time.

As a result of the determination in step S450, if the measured heart rate of the heart rate measurement information is out of the heart rate range of the user, the communication terminal 120 provides notification information (step S470).

The alert information may be a warning tone or a guide message, which may include a workout time (e.g. exercise time, a suitable time for future workouts), a type of exercise (e.g. light exercise such as jogging). ) May be included.

As a result of the determination in step S450, if the measured heart rate of the heart rate measurement information does not exceed the user's heart rate range, the communication terminal 120 again measures the measured heart rate of the heart rate measurement information within the user's heart rate range after a predetermined time elapses. It is determined whether to perform (step S460).

As a result of the determination in step S460, if the measured heart rate of the heart rate measurement information does not exceed the heart rate range of the user, the flow proceeds to step S450.

On the contrary, if the measured heart rate of the heart rate measurement information is out of the user's heart rate range, the user directly stops the exercise and ends the exercise intensity suggestion program of the communication terminal 120 of FIG. 1.

[Description of the code]

100: heart rate measurement terminal 120: communication terminal

200: microprocessor 210: heart rate measurement unit

220: operation unit 230: memory

240: display unit 250: wireless communication unit

300: control unit 310: input unit

320: display unit 330: maximum oxygen intake calculation unit

340: storage unit 350: heart rate calculator

360: voice conversion unit 370: communication circuit unit

Claims

Inputting a maximum oxygen intake estimation variable for inputting a maximum oxygen intake estimation variable corresponding to a user;

A maximum oxygen intake calculation step of calculating a maximum oxygen intake amount of the user using a maximum oxygen intake regression equation according to an input parameter;

A fitness class determining step of determining the fitness class according to the calculated maximum oxygen intake;

Calculating a heart rate range by substituting a value corresponding to a predetermined range of the maximum oxygen intake calculated using the maximum oxygen intake regression equation and calculating a heart rate range of the user using a heart rate regression equation

Proper exercise through estimating the maximum oxygen intake, comprising a

How to present strength.
The method of claim 1,

The maximum oxygen intake regression equation is

VO 2 max (ml / kg / min) = β0 + β1ｘ1 +... + Βpｘp + ε, ε to N (0, σ2),

Where VO 2 max (ml / kg / min) is the dependent variable, ｘ1,…, ｘp is the P given dependent variables, β0, β1,…, βp are unknown regression coefficients, ε is the error term Suppose you follow a normal distribution with variance σ 2 .

The heart rate regression equation is

HR = AX + B

(Where A is a slope, B is a constant, and X is VO 2 (ml / kg / min)).
The method of claim 2,

The independent variables include gender, age, weight, height, body mass index (BMI), bioelectrical impedance analyzer (BIA), resting heart rate, heart rate during submaximal exercise, and submaximal exercise. Respiratory gas parameters, Respiratory Exchange Ratio (RER), energy expenditure, waist circumference, waist-to-hip ratio, physical activity data, exercise awareness Rating of Perceived Exertion (RPE), daily step counts, exercise frequence (sessions per week), maximum exercise intensity (Wmax: work max), duration of exercise titration through estimation of the maximum oxygen intake, characterized in that it comprises at least one selected from the years of training, the gas exchange threshold, a long running record of more than 1000m and skeletal muscle mass How to present exercise intensity.
Generating a heart rate measurement information by measuring a heart rate of the user as the user's exercise starts;

The communication terminal receives the generated heart rate measurement information from the heart rate measurement terminal and determines whether the measured heart rate of the heart rate measurement information falls within the user's heart rate range generated by any one of claims 1 to 3. Making; And

As a result of the determination, when the communication terminal is out of the heart rate range of the user, providing notification information

Proper exercise through estimating the maximum oxygen intake, comprising a

How to present strength.
The method of claim 4, wherein

The notification information includes a guide message for the exercise time and type of exercise, characterized in that the optimum exercise intensity presentation method by estimating the maximum oxygen intake.