JP7423043B2 - Training support system and training support method - Google Patents

Description

The present invention relates to a training support system and a training support method.

Traditionally, proposals have been made to subjects (exercisers) to carry out training exercises that are considered to be effective for the subjects (exercisers), and exercises carried out by the subjects have brought about effective training effects for the subjects. Attention is being paid to technologies that evaluate whether or not a subject has been physically active, or evaluate the motor ability of a subject. Related to these technologies, a technology has been proposed that estimates the metabolic capacity of a subject, evaluates their endurance exercise ability, and proposes training exercises that can produce an effective training effect for the subject. (See Patent Document 1; hereinafter referred to as "prior art").

In this conventional technique, a metabolic reaction rate equation for a metabolite such as lactic acid of a subject is created using the value of an exercise state parameter related to exercise intensity as a variable. Subsequently, the performance of the subject's internal reactor is evaluated using the metabolic reaction rate equation. Next, based on the evaluation results of the performance of the body reactor, a mode of training exercise that can produce an effective training effect for improving the endurance exercise capacity of the subject is derived. The derived training exercise form is then proposed to the subject.

WO 2017/014183 A1

In addition to suggesting training exercises that are considered to be effective to the subject, or even more so, it is also possible to present an evaluation of whether the training exercise that the subject performed was effective for the subject. , is an important element in training support.
However, the prior art does not disclose a technique for objectively (qualitatively) evaluating whether the training exercise performed by the subject was effective for the subject.
Furthermore, in the conventional example, the effectiveness of the proposed training exercise for the subject is evaluated, but there is a long-awaited technology that can objectively evaluate the effectiveness more easily and more specifically.

Therefore, in order to improve the endurance exercise ability of a subject, there is a long-awaited technology for a new specific method for objectively evaluating the quality of the exercise performed by the subject. Meeting such demands is one of the problems to be solved by the present invention.

In this specification, the term "quality of training exercise" refers to the degree of effectiveness of the training effect obtained through training exercise. shall be tracked and evaluated based on these concentrations. It is assumed that the higher the "degree of effectiveness" of the training effect, the higher the "quality" of the training exercise.

According to the findings obtained by the inventor of the present invention as a result of research, the quality of exercise for improving endurance exercise capacity is determined in advance by the concentration of metabolic substances such as lactic acid in the body of the subject during exercise. It is determined by the manner in which the concentration changes over time, such as the length of time that the concentration is maintained within the specified range. The present invention has been made based on this knowledge.

That is, from a first perspective, the present invention provides a method for determining the metabolites of a subject obtained from the measurement results of the concentration of metabolites in the blood according to a plurality of exercise state parameter values during pre-exercise of the subject. a calculation unit that calculates a time change in the concentration of the metabolite according to a time change in at least one of the exercise state parameter values during exercise of the subject based on a metabolic reaction rate equation; , a first period length of a first period during which it can be said that the calculated range of change in the concentration of the metabolite is maintained at a predetermined value or less and the concentration value of the metabolite is maintained , and the calculation of the quality of the exercise performed based on an evaluation index that includes at least one of the third period length in which the concentration of the metabolite carried out is maintained at a value within a predetermined range. This is a training support system characterized by comprising: an evaluation section that evaluates suitability for a target person;

In this first training support system, the calculation unit calculates the metabolic rate of the subject, which is obtained from the metabolic rate measurement results of the metabolic substance in the blood according to the plurality of exercise state parameter values during the subject's pre-exercise. Based on the metabolic reaction rate equation, a time change in the concentration of the metabolite is calculated in accordance with a time change in at least one of the exercise state parameter values during exercise of the subject. Then, the evaluation unit determines that during the exercise performed by the subject, the calculated temporal change range of the concentration of the metabolite is maintained at a predetermined value or less , and the concentration value of the metabolite is maintained. Based on an evaluation index that includes at least one of a first period length in which the calculated concentration of the metabolite maintains a value within a predetermined range, Assess the suitability of the exercise content for the target audience.

Therefore, according to the first training support system of the present invention, while securing the advantage that it is not necessary to directly measure the blood concentration of metabolites during exercise by drawing blood etc. in the conventional technique, The results of the exercise performed by the subject are determined using specific indicators such as the temporal change in the concentration of metabolites, such as the length of time during which the blood concentration of metabolites remains within a predetermined range. Able to objectively evaluate quality.

In addition, from a second perspective, the present invention provides metabolic substances of the subject obtained from measurement results of the concentration of metabolites in the blood according to a plurality of exercise state parameter values during pre-exercise of the subject. a calculation unit that calculates a time change in the concentration of the metabolite according to a time change in at least one of the exercise state parameter values during exercise of the subject based on a metabolic reaction rate equation; , a first period length of the first period during which it can be said that the calculated range of change in the concentration of the metabolite is maintained to be equal to or less than a predetermined value, and the concentration value of the metabolite is maintained ; The exercise quality of the implementation candidate based on an evaluation index that includes at least one of the third period length of the third period in which the calculated concentration of the metabolite is maintained at a value within a predetermined range. A training support system comprising: an evaluation unit that evaluates the appropriateness of the training for the target person;

In this second training support system, the calculation unit calculates the metabolic rate of the subject's metabolites obtained from the metabolic rate measurement results of the subject's blood metabolites according to the plurality of exercise state parameter values during the subject's pre-exercise. Based on the metabolic reaction rate equation, a time change in the concentration of the metabolite is calculated in accordance with a time change in at least one of the exercise state parameter values during exercise of the subject. Then, the evaluation unit determines that during the exercise of the candidate, the range of change in the calculated concentration of the metabolite is maintained at a predetermined value or less , and it can be said that the concentration value of the metabolite is maintained. The content of the exercise of the exercise candidate based on an evaluation index that includes at least one of a period length and a third period length in which the calculated concentration of the metabolite maintains a value within a predetermined range. Assess its suitability for the target audience

Therefore, according to the second training support system of the present invention, while securing the advantage of not having to directly measure the blood concentration of metabolites during exercise by drawing blood, etc., as in the conventional technology, The execution candidate is evaluated using specific indicators such as the temporal change in the concentration of the metabolite, such as the length of time during which the blood concentration of the metabolite remains within a predetermined range during the exercise of the execution candidate. Objective evaluation of the quality of exercise can be easily performed.

In the first and second training support systems of the present invention, the metabolic reaction rate equation may be one of the following (I) to (IX).

Here, in the above formulas (I), (IV) and (VII), [met] represents the concentration of the metabolite, [tor] represents the torque value, and [cad] represents the rotational speed (rpm) of the leg or arm. ), each represents a cadence or movement speed selected from the group consisting of pitch number and movement speed. [Weight] represents the object person 's weight, and [HR] represents the heart rate (bpm). [slope] represents the course condition including the slope angle distribution of the course. [temp] represents the temperature or body temperature. Further, the power order is a real number.

In the above formulas (II), (V), and (VIII), [force] is the force value, and [stride (pitch)] is the parameter of the speed of body movement, similar to the pitch. time, stride length or pitch when riding a handbike or running, respectively. [weight], [HR], [slope], [met], and [temp] are the same as in formula (I). Furthermore, in the above formulas (II), (V), and (VIII), the coefficients a _i , c _i , k _i and the power orders are real numbers.

In the above formulas (III), (VI), and (IX), [power (work rate)] is force, horizontal and vertical velocity and acceleration, vertical fluctuation height of the body, ground contact time, and running time. Includes work rate determined from measured parameters such as jump angle and stride period (pitch). [weight], [HR], [slope], [met], and [temp] are the same as in formula (I). Furthermore, in the above formulas (III), (VI), and (IX), the coefficients a _i , c _i , k _i and the power orders are real numbers.

Furthermore, according to the findings obtained by the inventor of the present invention as a result of research, the quality of exercise for improving endurance exercise capacity is determined by the concentration of metabolic substances such as lactic acid in the body of the subject during exercise. The longer the period length maintained within the predetermined range, the higher the value. Furthermore, the quality of the exercise is higher as the calculated range of change in the concentration of the metabolite is less than or equal to a predetermined value and the longer the period during which the concentration value of the metabolite can be maintained is higher.

Therefore, in the training support system of the present invention, when the evaluation index includes the third period length, the evaluation section determines that the calculated concentration of the metabolite falls within the predetermined range. The longer the period in which the content is maintained, the higher the suitability for the target person is evaluated.

Further, in the first and second training support systems of the present invention, when the evaluation index includes the first period length, the derivation unit determines that the calculated range of change in the concentration of the metabolite is a predetermined value. It may be configured such that the longer the period in which the concentration value of the metabolite is maintained , the more effective the exercise mode is for the subject.

Note that it is also possible to perform a composite evaluation by combining the calculated temporal change in the concentration of the metabolite and the motor state parameter value.

Moreover, the first and second training support systems of the present invention may further include a presentation unit that presents to the subject a time change in the concentration of the metabolite during the exercise. In this case, the quality of movement can be presented to the subject in real time.

Further, in the first and second training support systems of the present invention, a training mode in which the time change in the concentration of the metabolite calculated by the metabolic reaction rate equation is estimated to correspond to a training exercise that is effective for the subject is provided. The configuration may further include a derivation unit for deriving the information. In this case, in addition to evaluating the quality of the exercise performed by the subject, it is possible to derive a training mode that is estimated to correspond to an exercise that is effective for the subject. For example, it is possible to select a course from among known training courses that allows the subject to perform effective training exercises, and then suggest a training mode for the course.

Here, when the evaluation index includes the third period length, the derivation unit selects a value within a predetermined range of the calculated concentration of the metabolite from among the plurality of training mode candidates. The longer the period in which the training mode is maintained, the more effective the training mode is for the subject.

Further, when the evaluation index includes the first period length, the deriving unit maintains that the calculated range of change in the concentration of the metabolite is equal to or less than a predetermined value , The configuration may be such that the longer the period during which the value is maintained , the more effective the exercise mode is for the subject.

Furthermore, the higher the ratio of the first total production amount of the metabolites in the first and third periods to the second total production amount of the metabolites during the exercise period, the more effective the exercise mode is for the subject. It can be configured to determine that there is.

Here, it may be configured such that the closer the second total production amount is to the target cumulative production amount determined according to the subject, the more effective the exercise mode is for the subject.

Furthermore, in the training support system of the present invention, the metabolite can be lactic acid or creatine phosphate.

The metabolite may be lactic acid, and the predetermined range may be from 2 to 23 mmol/l. Here, the predetermined range may include 2 to 14 mmol/l. Furthermore, the predetermined range may be comprised between 4 and 8 mmol/l.

From a third aspect, the present invention is a training support method used in a training support system comprising a calculation unit and an evaluation unit, wherein the calculation unit is configured to calculate a plurality of exercise states of a subject at the time of pre-exercise. At least one of the exercise state parameter values during exercise of the subject based on the metabolic reaction rate equation of the subject's metabolites obtained from the results of the concentration of metabolites in the blood according to the parameter values. a calculation step of calculating a temporal change in the concentration of the metabolite according to a time change; the evaluation unit determines that the calculated range of change in the concentration of the metabolite is equal to or less than a predetermined value during the exercise performed; is maintained and the concentration value of the metabolite is maintained ; and a third period length during which the calculated concentration of the metabolite is maintained within a predetermined range. A training support method comprising: an evaluation step of evaluating the appropriateness of the quality of the exercise performed for the subject based on an evaluation index including at least one of the evaluation indicators.

In this first training support method, in the calculation step, the calculation unit calculates the metabolic rate of metabolic substances in the blood of the subject obtained from the metabolic rate measurement results of the metabolic substances in the blood according to the plurality of exercise state parameter values during the subject's pre-exercise. Based on the metabolic reaction rate equation of the metabolite, a time change in the concentration of the metabolite is calculated in accordance with a time change in at least one of the exercise state parameter values during exercise of the subject. Then, in the evaluation step, the evaluation unit maintains that the range of change in the calculated concentration of the metabolite is equal to or less than a predetermined value during the exercise performed by the subject , and maintains the concentration value of the metabolite. Based on the evaluation index that includes at least one of the first period length during which the concentration of the calculated metabolite is maintained within a predetermined range, Evaluate the suitability of the exercise content for the target person.

Therefore, according to the first training support method of the present invention, while securing the advantage that it is not necessary to directly measure the blood concentration of metabolites during exercise by drawing blood, etc., as in the conventional technique, The results of the exercise performed by the subject are determined using specific indicators such as the temporal change in the concentration of metabolites, such as the length of time during which the blood concentration of metabolites remains within a predetermined range. Able to objectively evaluate quality.

From a fourth aspect, the present invention is a training support method used in a training support system comprising a calculation unit and an evaluation unit, wherein the calculation unit calculates a plurality of exercise states of a subject at the time of pre-exercise. At least one of the exercise state parameter values during exercise of the subject based on the metabolic reaction rate equation of the subject's metabolites obtained from the results of the concentration of metabolites in the blood according to the parameter values. a calculation step of calculating a time change in the concentration of the metabolite according to a time change; the evaluation unit determines that the calculated range of change in the concentration of the metabolite is less than or equal to a predetermined value during exercise of the candidate; a first period length during which it can be said that the concentration of the metabolite is maintained and the concentration value of the metabolite is maintained, and a third period length during which the calculated concentration of the metabolite is maintained within a predetermined range. The training support method is characterized by comprising: an evaluation step of evaluating the appropriateness of the exercise quality of the execution candidate for the subject based on an evaluation index including at least one of the above.

In this second training support method, in the calculation step, the calculation unit calculates the metabolic rate of metabolic substances in the blood of the subject obtained from the metabolic rate measurement results of the metabolic substances in the blood according to the plurality of exercise state parameter values during the subject's pre-exercise. Based on the metabolic reaction rate equation of the metabolite, a time change in the concentration of the metabolite is calculated in accordance with a time change in at least one of the exercise state parameter values during exercise of the subject. In the evaluation step, the evaluation unit determines that during the exercise of the candidate, the range of change in the calculated concentration of the metabolite is maintained at a predetermined value or less , and the concentration value of the metabolite is maintained. Based on an evaluation index that includes at least one of a first period length in which the calculated concentration of the metabolite maintains a value within a predetermined range, Assess the suitability of the exercise content for the target audience.

Therefore, according to the second training support system of the present invention, while securing the advantage that it is not necessary to directly measure the blood concentration of metabolites during exercise by drawing blood etc. in the conventional technique, The execution candidate is evaluated using specific indicators such as the temporal change in the concentration of the metabolite, such as the length of time during which the blood concentration of the metabolite is maintained within a predetermined range during the exercise of the execution candidate. Objective evaluation of the quality of exercise can be easily performed.

According to the training support system of the present invention, the blood concentration of metabolites during exercise does not have to be directly measured by blood sampling, which is the conventional technique, while maintaining the metabolic rate during exercise. Evaluate the quality of exercise performed by the subject using specific indicators such as changes in the concentration of metabolites over time, such as the length of time that the blood concentration of the substance remains within a predetermined range. This has the effect of being able to be carried out objectively.

According to the training support method of the present invention, the blood concentration of metabolites during exercise does not have to be directly measured by blood sampling etc. in the conventional technique, while Evaluate the quality of exercise performed by the subject using specific indicators such as changes in the concentration of metabolites over time, such as the length of time that the blood concentration of the substance remains within a predetermined range. This has the effect of being able to be carried out objectively.

FIG. 1 is a diagram schematically showing an internal main reactor, first and second internal sub-reactors, their functions, and the amount of adenosine triphosphate (ATP) supplied from each reactor. FIG. 2 is a diagram schematically showing changes in the amount of ATP supplied from each of the above reactors after appropriate training. FIG. 3 is a diagram showing the relationship between an increase in exercise intensity and an increase in blood lactic acid concentration. FIG. 4 is a block configuration diagram showing the configuration of a training support system according to an embodiment. FIG. 5 is a diagram showing an example of the correlation between the measured value of change in lactic acid production rate due to change in exercise intensity and a regression equation in the form of an exponential type equation. FIG. 5(A) is an example of the correlation for a person with a high level of endurance exercise ability, and FIG. 5(B) is an example of the correlation for a person with a low level of endurance exercise ability. FIG. 6 is a diagram showing an example of the correlation between the measured value of change in lactic acid production rate due to change in exercise intensity and a regression equation in the form of a power type equation. FIG. 6(A) is an example of the correlation for a person with a high level of endurance exercise ability, and FIG. 6(B) is an example of the correlation for a person with a low level of endurance exercise ability. Figure 7 shows that the higher the ratio of the first to third total production of metabolites (lactic acid) in the first to third periods (specific periods) to the total production of metabolites during the entire period of exercise, the higher the LT. It is a figure showing that there is a tendency to be able to contribute to an increase. FIG. 8 is a diagram showing an example of a change over time in the amount of metabolic product (lactic acid) produced during a training exercise that is effective for a subject from the viewpoint of improving endurance exercise ability. FIG. 9 is a diagram showing an example of a time change in exercise intensity and a time change in blood lactic acid concentration during a training exercise performed. Here, FIG. 9(A) is a diagram showing temporal changes in exercise intensity, and FIG. 9(B) is a diagram showing temporal changes in blood lactic acid concentration. FIG. 10 is a diagram showing another example of the temporal change in exercise intensity and the temporal change in blood lactic acid concentration in the performed training exercise. Here, FIG. 10(A) is a diagram showing temporal changes in exercise intensity, and FIG. 10(B) is a diagram showing temporal changes in blood lactic acid concentration.

[About the use of metabolic reaction rate equations]
Prior to describing the embodiments of the present invention, the use of metabolic reaction rate equations in the present invention will be explained.

In order to understand and comprehensively evaluate the quality of training exercise, it is necessary to trace the history of changes in exercise intensity over time during the training exercise period and to examine how the previous exercise affects subsequent exercise. It is necessary to view it as a connected phenomenon that changes over time. By the way, in measuring exercise intensity, measurement based on the amount of oxygen taken in through breathing has been widely used for a long time, but in recent years, measuring instruments (hereinafter also referred to as "work rate measuring instruments") that measure exercise intensity have been used. was developed and miniaturization progressed.

For this reason, depending on the competition, it has become possible to measure and collect data such as heart rate, pulse, and breathing rate, as well as the current altitude and movement speed of the subject, even at the competition site. For example, various measuring instrument manufacturers sell bicycle-mounted devices for data collection as described above that are equipped with software that has simple analysis functions (for example, Pedal Monitor System (manufactured by Pioneer Corporation)). )).

On the other hand, energy is required to continue exercising, and each subject has multiple internal reactors (hereinafter simply referred to as "reactors") that produce this energy within the body. ). There are two sources of energy for exercise: fat and sugar, which are stored in the body and used in separate reactors. Here, the internal reactor is a reactor that supplies the energy necessary for sustaining exercise through metabolic reactions in the form of adenosine triphosphate (hereinafter also referred to as "ATP"), and includes the main internal reactor and the first It is known that the reactor is composed of three reactors: a second internal subreactor and a second internal subreactor. (See Figure 1).

The body's main reactor (hereinafter also simply referred to as "main reactor") metabolizes fat (hereinafter also referred to as "primary energy source"), which is the main energy source for exercise, into creatine phosphate. It is a place where ATP is generated. Here, "fat" refers to "fats and oils," which are "oil" contained in animals and plants, that are solid at room temperature.

The component of fats and oils is triacylglycerol (also called triglyceride or neutral fat), which has three hydroxyl groups of glycerol bound to fatty acids, respectively. Triacylglycerol is an energy storage body stored in adipose tissue and accounts for most of the stored energy in living organisms. Fatty acids liberated from triacylglycerol by enzymes are metabolized as described below and participate in ATP production.

Fat is broken down into fatty acids and enters the citric acid cycle, where the carbon skeleton is finally completely oxidized and broken down into water and carbon dioxide. The carbon part of acetyl-CoA formed from fatty acids is decarboxylated in the citric acid cycle, and the hydrogen part is mainly converted to NADH (reduced nicotinamide adenine dinucleotide (NAD)) by dehydrogenase to transport electrons in the mitochondrial inner membrane. passed to the system. The final use of the electron transport chain is chromium oxidase, which uses an enzyme to oxidize the hydrogen in NADH to produce water. At this time, a large amount of energy is released, and ATP synthase uses this energy to synthesize ATP from ADP (adenosine diphosphate) and inorganic phosphate (Pi). That is, oxidative phosphorylation of fat is carried out in the main reactor.
In the case of eukaryotic cells, the above reaction takes place in the mitochondrial inner membrane within the cell, and the main reactor is the place where ATP is produced using the first energy source as described above.

In addition, the first internal side reactor (hereinafter also referred to as "first side reactor") metabolizes sugar (hereinafter also referred to as "second energy source"), which is a secondary energy source for exercise. This is the place where pyruvic acid and ATP are produced. In this first side reactor, pyruvic acid and ATP are produced from sugar by glycolysis. Pyruvate is metabolized through two routes: (a) pyruvate → lactic acid pathway and (b) pyruvate → acetyl-CoA → TCA cycle → respiratory chain pathway to produce ATP. Note that pyruvic acid is reduced to lactic acid by lactate dehydrogenase.

In addition, the second intracorporeal side reactor (hereinafter also referred to as "second side reactor") reacts with the creatine produced in the main reactor depending on the level of adenosine diphosphate (ADP) stored in the muscles. This is the place where creatine and ATP are generated from phosphoric acid. That is, the second side reactor utilizes creatine phosphate as a phosphagen.

Note that a part of the oxidative metabolites of fat, which is the first energy source, is sent to a second intracorporeal side reactor (hereinafter sometimes simply referred to as "second side reactor"). It is known that it is used in the creatine phosphate consumption-resynthesis reaction in the second side reactor and used for the production of ATP.

By the way, creatine phosphate, which is a high-energy compound produced in the main reactor, is a substance that has the physiological significance of storing high-energy phosphate bonds. This is because when the ADP level increases due to muscle contraction, creatine phosphate is consumed in the second body side reactor to produce creatine and ATP, but when the ADP level decreases, creatine phosphate is catalyzed by creatine kinase. This is because creatine phosphate is generated from creatine and ATP through the reaction. This series of reactions is called the "creatine phosphate consumption-synthesis reaction," and the place where this reaction occurs is the second intracorporeal side reactor.

As mentioned above, ATP is produced in three reactors: an internal main reactor, and first and second internal subreactors. Comparing the amount of ATP produced in each reactor, the amount of ATP produced in the first and second intracorporeal side reactors is much smaller than the amount produced in the main reactor. Therefore, it can be said that ATP, which is the energy for movement, is mainly supplied from the main reactor.

Now, when the exercise intensity is low, ATP is mainly generated by oxidative metabolism of the first energy source (see FIG. 2). On the other hand, when the exercise intensity is high, the oxidative metabolism performed in the main reactor alone cannot supply ATP, so the two side reactors mentioned above are also operated at full capacity, allowing for sugar metabolism and creatine phosphorus. ATP is supplied by the acid consumption-resynthesis reaction. It is known that when the amount of sugar used as the second energy source increases and the amount of sugar stored in the first side reactor decreases, people become unable to exercise due to fatigue (see Figure 2). ).

For example, when focusing on lactic acid as a metabolic substance, Lactate represents the relationship between exercise intensity (exercise power; hereinafter also simply referred to as "power") and blood lactic acid concentration, an example of which is shown in Figure 3 (A). From the curve, it is known that there is the following relationship between exercise intensity and blood lactic acid concentration. In other words, while exercise intensity is low, there is a nearly proportional relationship between exercise intensity and blood lactate concentration, but as the exercise intensity increases, when a certain intensity is reached, blood lactate concentration suddenly increases. known to rise.

Note that the Lactate curve can be obtained by conducting an incremental load test in a laboratory or the like. Such a progressive load test is a test in which a person exercises at a constant intensity for a certain period of time, measures the blood lactic acid concentration each time, and then gradually increases the intensity.

According to the findings obtained by the present inventor as a result of research, the blood lactate concentration (Lactate Threshold (hereinafter sometimes abbreviated as "LT")) at which the blood lactate concentration starts to rise rapidly is approximately It is 2 to 4 mmol/l, and there is no big difference between individuals. Then, as the person accumulates effective training, the exercise intensity that becomes LT increases, as shown in FIG. 3(B). As the exercise intensity that reaches LT increases in this way, endurance exercise capacity (sustainability of exercise) increases. This is thought to be due to the following mechanism.

That is, when exercise is performed at an intensity that increases the rate of lactic acid production, the amount of ATP supplied from the main reactor based on the first energy source decreases. Therefore, the operating rate of the first side reactor increases, and the amount of lactic acid produced increases. If you maintain this exercise load condition (high-intensity load condition) or accumulate training exercises that involve intermittent high-intensity load conditions, the time it takes for the lactic acid production rate to rapidly increase will become slower. It is thought that the change in the Lactate curve due to effective training, shown in Figure 3(B), shows that this is the case.

Furthermore, according to the findings obtained by the present inventor as a result of research, when the metabolite is lactic acid, continuing to maintain the concentration and maintaining a high concentration value or concentration range improves endurance exercise capacity. is effective, but maintaining a high concentration of exercise can be continued for a shorter period of time. Therefore, various combinations of movement forms can be considered to achieve the above objective.

The longer the period in which the blood lactate concentration of the subject during exercise is continuously maintained within a predetermined range of 2 to 23 mmol/l, especially 2 to 14 mmol/l, It is of high quality as an effective exercise for improving endurance exercise ability. That is, if a subject's blood lactic acid concentration remains below 2 mmol during exercise, he or she cannot hope to improve his or her endurance exercise ability.

Furthermore, if the period during which a subject's blood lactate concentration exceeds 14 mmol increases, the proportion of periods in which the blood lactate concentration is continuously maintained between 2 and 14 mmol/l decreases, and therefore, endurance exercise capacity decreases. It can no longer be said that it is of high quality as an effective exercise for improving one's health.

In addition, although we have explained the case where lactic acid is used as a metabolite above, even if it is a metabolite other than lactic acid, it can be measured as long as it is a metabolite that increases or decreases depending on exercise intensity. Similarly, the quality of exercise that is effective for improving endurance exercise capacity can be evaluated using the body concentration of the metabolite as an index.

However, it is difficult to actually measure the concentration of metabolites in the body during actual training exercise. Therefore, there is a need for a method that can estimate the concentration of metabolites in the body based on obtainable parameters (variables) related to exercise intensity during actual training exercise.

According to the findings obtained by the present inventor as a result of research, it was found that metabolic substance concentrations in the body, such as the blood lactate concentration of the subjects measured in the above-mentioned laboratory gradual load test, showed that the metabolic substance levels in the body were determined according to exercise intensity. A metabolic reaction rate equation indicating the metabolic rate of can be determined using a plurality of exercise state parameter values as variables. Even if the concentration of metabolites in the body is included as a variable in the metabolic reaction rate equation, if the concentration of the metabolites in the body before the start of the training exercise is used as the initial value, the time change in the concentration of the metabolites in the body during the training exercise can be found.

Note that, according to the findings obtained by the present inventor as a result of research, the initial value does not change significantly even as the subject undergoes training.

[Training support system]
Hereinafter, a training support system according to an embodiment of the present invention will be described with reference mainly to FIGS. 4 to 10 . Note that this embodiment will be described on the assumption that lactic acid is employed as the metabolite.

<Configuration>
FIG. 4 shows the configuration of a training support system 900 according to an embodiment. As shown in FIG. 4, the training support system 900 includes a portable measurement unit 100 _m (m=1, 2,...,M) and a preliminary measurement unit 200 _q (q=1, 2,..., Q). , a user terminal device 300 _p (p=1, 2, . . . , P), a preliminary measurement unit 300 _q (q= 1, 2, . . . , Q), and a server device 400.

These portable measurement unit 100 _m, pre-measurement unit 200 _q , communication terminal device 300 _p , and server device 400 are connected to a network 500. In this embodiment, the server device 400 communicates using the network 500 with the portable measurement unit 100 _m , the preliminary measurement unit 200 _q , and the communication terminal device 300 _p .

《Configuration of portable measuring unit 100 _m 》
The above-mentioned portable measurement unit 100 _m is attached to the measurement target person or to the equipment used by the user for exercise during the training exercise of the user. For example, if the exercise is a marathon, the portable measuring unit 100 _m is attached to the subject. Moreover, when the exercise is riding a bicycle, it is attached to the bicycle or the subject.

The portable measurement unit 100 _m includes a sensor 110 _m,n (n=1, 2,..., N _m ) and a processing unit 120 _m . Furthermore, the portable measurement unit 100 _m includes a display unit 130 _m .

Each of the above sensors 110 _m,n includes a sensor body and a data transmission unit. In this embodiment, the sensor 110 _m,n transmits the data obtained by converting the detection result by the sensor body into a digital value to the processing unit 120 _m ,n by the data transmitting unit using short-range wireless communication in accordance with the Bluetooth (registered trademark) standard or the like. It is now sent to.

Note that the motion state parameter values detected by the sensors 110 _m,1 to 110 _m,Nm include at least a set of motion state parameter values that are variables in any of the above-mentioned equations (I) to (IX). It is now included.

The processing unit 120 _m described above includes a central processing unit (CPU), a memory element, and its peripheral circuits. When the CPU executes the program, the function of the portable measurement unit 100 _m is realized.

Note that the processing unit 120 _m has a timer function.

Furthermore, the processing unit 120 _m is a communication terminal device that has functions of both short-range wireless communication and wide-area wireless communication in accordance with the Bluetooth (registered trademark) standard, etc., and has arithmetic capabilities. Furthermore, the processing unit 120 _m is equipped with an information input section such as a keyboard (not shown), and by operating this information input section, the identification information of the subject can be specified, the sensor 110 _m,Nm ~ 110 _m,N1 designation of the type of exercise state parameter value detected by (i.e., specifying which of the sets of motion state parameters to use), specifying start/stop of logging operation of sensor detection results, etc.

Note that the processing executed by the processing unit 120 _m will be described later.

The display unit 130 _m described above includes a display device such as a liquid crystal panel. This display unit 130 _m receives display data sent from the processing unit 120 _m . Then, the display unit 130 _m displays an image according to the display data.

《Configuration of advance measurement unit _200q 》
The above pre-measurement unit 200 _q (q=1, 2, . . . , Q) is placed in a laboratory, training center facility, or the like. This pre-measurement unit 200 _q includes a sensor 210 _q,r (r=1, 2,..., R _q ), a lactate measuring device 220 _q that measures blood lactate concentration, and a data logger 230 _q . .

Each of the above-mentioned sensors 210 _{q, r} includes a sensor body and a data transmission unit, similarly to the case of sensors 210 _{m, n} . That is, in the sensor 210 _q,r , the data transmission unit transmits data obtained by digitizing the detection result by the sensor body to the data logger 230 _q by short-range wireless communication in accordance with the Bluetooth (registered trademark) standard, etc. It is supposed to be done.

Note that the motion state parameter values detected by the sensors 210 _q,1 to 210 _q,R1 include any of the motion state parameter values that are variables in equations (I) to (IX) above. .

The lactic acid measuring device _220q described above measures the lactic acid concentration in blood (blood lactic acid concentration) collected from a subject who is the subject of preliminary measurement. In this embodiment, the lactate measuring device _220q displays the measurement results on a display section (not shown).

The data logger _230q described above includes a central processing unit (CPU), a memory element, and its peripheral circuits. The CPU executes the program to realize the function of the pre-measurement unit _200q .

Note that the data logger _230q has a timer function.

Further, the data logger 230 _q is a communication terminal device that has functions of both short-range wireless communication and wide-area wireless communication in accordance with the Bluetooth (registered trademark) standard and the like, and also has computing ability. Furthermore, the data logger _230q is equipped with an information input section such as a keyboard (not shown), and by operating this information input section, it is possible to specify the identification information of the subject to be subjected to preliminary measurement and to become the detection target. Designation of the type of value of the exercise state parameter (in this embodiment, a set of first to third variables (in accordance with which of the metabolic reaction rate equations (I) to (IX) described above In other words, it is possible to specify which of a set of exercise state parameters to use), to start/stop logging of sensor detection results, to input measurement results from the lactate measuring device _220q , etc. It has become.

Note that the processing executed by the data logger _230q will be described later.

《Configuration of user terminal device _300p 》
As the user terminal device _300p , a personal computer placed in the subject's home or the like, a notebook personal computer, a smartphone, etc. that can be moved with the subject can be used. When the target person sends a registration request to the server device 400 using this user terminal device 300 _p , user registration is performed in the server device 400 and identification information of the target person is assigned.

Note that demographic information (age, address, gender, etc.) of the target person is specified in the registration request.

The identification information of the target person assigned in this way is sent back to the user terminal device 300 _p that sent the registration request. As a result, the subject can know the identification information assigned to him or herself.

Further, when the target person uses the user terminal device _300p to send a request to present a recommended training exercise to the server device 400, the server device 400 receives recommended training exercise information (recommended course, recommended exercise period length, exercise mode, etc.). ) is generated. Note that the recommended training exercise presentation request specifies the target person's identification information, the type of training exercise he/she wishes to perform (marathon, cycling, etc.), and the like.

The recommended training exercise information generated in this way is sent back to the user terminal device 300 _p that transmitted the recommended training exercise presentation request. As a result, the subject can learn the content of training exercise suitable for improving his/her own endurance exercise ability.

<<Configuration of server device 400>>
The server device 400 described above includes a CPU, a large capacity storage device such as a fixed disk, peripheral circuits thereof, and the like. The CPU functions as the server device 400 by executing various programs. These functions include user registration processing, metabolic reaction rate equation generation processing, metabolic reaction rate equation transmission processing, recommended training exercise information generation processing, and evaluation processing of executed training exercises.

In addition, in the mass storage device provided in the server device 400, the demographic information of the subject acquired at the time of registration of the subject, the metabolic reaction rate equation of the subject, and the subject are stored in association with the subject's identification information. The subject's exercise history information and the like are stored. Furthermore, information on training courses for each type of exercise is stored in the mass storage device.

When the server device 400 receives a new registration request transmitted from the user terminal device _300p , it executes a user registration process. During such user registration processing, the server device 400 provides new identification information to the new target person who has issued the new registration request. Subsequently, the server device 400 stores the demographic information specified in the new registration request in the mass storage device in association with the new identification information. Then, the server device 400 returns the new identification information to the user terminal device _300p that sent the registration request.

The above-described metabolic reaction rate equation generation process, metabolic reaction rate equation transmission process, recommended training exercise information generation process, and executed training exercise evaluation process will be described later.

<Operation>
Next, regarding the operation of the training support system 900 configured as described above, the processing executed by the processing unit 120 _m and the data logger 230 _q , the metabolic reaction rate equation generation process and the metabolic reaction rate executed by the server device 400 will be explained. The explanation will focus mainly on the formula transmission process, the recommended training exercise information generation process, and the evaluation process of the executed training exercise.

《Derivation of metabolic reaction rate equation》
First, the derivation of a metabolic reaction rate equation for each subject in the training support system 900 will be explained.

When deriving such a metabolic reaction rate equation, the subject first goes to a facility (laboratory, training center) equipped with the above-mentioned preliminary measurement unit _200q . Then, the subject inputs the subject's identification information and the designation of the type of exercise state parameter to be detected to the preliminary measurement unit _200q . Here, the subject should consider the types of motion state parameter values that can be detected by the sensors 100 _{m ,1} to 100 _{m,Nm possessed by the portable measurement unit 100 m,} which may be used. Input the specification of the value type of the target motion state parameter.

After that, when the start of logging operation of the sensor detection results is specified and the gradual load test for preliminary measurement of the subject is started, the data logger 230 _q starts logging from the sensor corresponding to the value of the specified exercise state parameter. Collect the sent detection result data. The data logger 230 _q then transmits the collected detection result data to the server device 400 along with the identification information of the subject and the detection time (collection time).

Blood is collected as appropriate during the progressive load test for preliminary measurement. Then, the lactic acid concentration in the collected blood is measured by the lactic acid measuring device _220q . The results of the measurement by the lactate measuring device _220q are input to the data logger _230q using the input section of the data logger _230q . Note that when inputting the measurement results of lactic acid concentration, identification information of the subject and designation of blood sampling time are input. When the lactic acid concentration measurement for one sample is completed, the data logger 230 _q sends the measurement result data by the lactate measuring device 220 _q to the server device 400 as lactic acid measurement information, along with the subject's identification information and blood sampling time. .

Upon receiving the detection result data of exercise state parameter values and the lactic acid measurement results in the progressive load test for pre-measurement, the server device 400 executes metabolic reaction rate equation generation processing. In the process of generating metabolic reaction rate equations, the server device 400 generates at least one of the metabolic reaction rate equations (I) to (IX) for the subject using a statistical method such as the method of least squares. Estimate using techniques.

Note that each of the metabolic reaction rate equations (I) to (IX) employs variables from any one of the following first to third sets of variables, as described above.
Here, the first set of variables is (a1) torque, (a2) cadence or speed of movement selected from the group consisting of leg or arm rotational speed (rpm), pitch number, and movement speed; (a3 ) Consists of the subject's weight measured before the start of exercise, (a4) heart rate, (a5) exercise environment, (a6) blood lactic acid concentration, and (a7) either air temperature or body temperature. Contains variables. The metabolic reaction rate equations employing the first set of variables are equations (I), (IV), and (VII).

Also, compared to the first set of variables, the second set of variables includes (a1) a force value instead of (a1) torque, and (b2) a force value instead of (a2) cadence or motion speed. As a parameter for the speed of body movement, the stride length or number of pitches when walking, using a wheelchair, riding a handbike, or running is included as a variable. The metabolic reaction rate equations employing the second set of variables are equations (II), (V), and (VIII).

Furthermore, compared to the first set of variables, the third set of variables includes (c1) power (or force) instead of (a1) torque and (a2) cadence or speed of movement. , horizontal and vertical velocity and acceleration, vertical movement height of the body, ground contact time, jump angle during running, and stride period (pitch), which are determined from measured parameters, are included as variables. There is. The metabolic reaction rate equations employing the third set of variables are equations (III), (VI), and (IX).

According to the findings obtained by the present inventor as a result of research, in the case of the above formulas (I) to (III) (hereinafter referred to as "exponential type formula"), the level of endurance exercise ability is high. The estimation formula is such that practical accuracy can be ensured for both those who are low (see FIG. 5(A)) and those who are low (see FIG. 5(B)).
FIG. 5 (same as FIG. 6 described later) is a diagram showing changes in lactic acid production rate with changes in exercise intensity. Here, the black squares are actual measured values, and the curve is a regression equation based on an exponential type equation.

In addition, in the case of the above formulas (IV) to (VI) (hereinafter referred to as "power type formula"), it is not practical for people with a high level of endurance exercise ability (see Figure 6 (A)). Accuracy cannot be ensured. On the other hand, for those with a low level of endurance exercise ability (see FIG. 6(B)), higher accuracy than the "exponential type method" can be ensured.

Furthermore, in the case of formulas of the types (VII) to (IX) above (hereinafter referred to as "complex type formulas"), the amount of calculation for estimating the formula is large; Estimation accuracy can be improved compared to the formula.

According to the knowledge obtained by the present inventors, the above-mentioned properties depend on the progress and state of training, there is a strong correlation with the content of training implementation, and it can be classified and estimated from training data.

When the metabolic reaction rate equation of the subject is generated in this way, the server device 400 stores the generated metabolic reaction rate equation in the mass storage device in association with the identification information of the subject. In the following explanation, the most recently generated metabolic reaction rate equation for the same subject will be referred to as the "latest metabolic reaction rate equation."

《Derivation of recommended training exercises》
Next, the derivation of recommended training exercises for a subject in the training support system 900 will be explained.

When deriving a recommended training exercise, first, the target person uses the user terminal device _300p to send a request for presenting a recommended training exercise to the server device 400. As described above, in the recommended training exercise presentation request of this embodiment, identification information of the target person, the type of training exercise desired (marathon, bicycle, etc.), etc. are specified.

Upon receiving the recommended training exercise presentation request, the server device 400 executes recommended training exercise information generation processing. In the recommended training exercise information generation process, the server device 400 first searches the mass storage device based on the subject's identification information and identifies the subject's latest metabolic reaction rate equation. Subsequently, the server device 400 stores the latest metabolic reaction rate equation specified, the training history of the subject up to that point, the type of training exercise the subject wants to perform, and the training exercise of the type stored in the mass storage device. Recommended training exercise information is generated based on the course information of the target race and the course information of the target race.

When generating the recommended training exercise information, the server device 400 extracts training exercise courses that are assumed to be easy to use for the subject from the previous driving records. Subsequently, the server device 400 extracts each of the extracted training exercise courses as at least one training exercise candidate based on the specified metabolic reaction rate equation, slope distribution during the course, and the like.

By the way, according to the findings obtained by the inventor of the present invention as a result of research, the quality of exercise for improving endurance exercise capacity is determined by the concentration of metabolic substances such as lactic acid in the subject's body during exercise. Determined by the manner of change over time. According to the findings further obtained by the inventor of the present invention as a result of research, the quality of exercise for improving endurance exercise ability can be determined by the following (i) to (vi).

(i) Endurance exercise requires that the length of the period ( third period length ) during which the blood lactate concentration is within the predetermined concentration range of 2 to 14 mmol/l, including the rest period, be as long as possible. This is preferable from the perspective of improving ability.
(ii) From the viewpoint of improving endurance exercise ability, it is preferable to increase the ratio of the period of this state to the period during training exercise as much as possible.
(iii) From the viewpoint of improving endurance exercise capacity, it is preferable to make the period during which the lactic acid concentration tends to increase (second period length) as long as possible.
(iv) From the viewpoint of improving endurance exercise ability, it is preferable to make the period during which the lactic acid concentration value is maintained ( first period length ) as long as possible.

(v) As shown in Figure 7, the ratio of the first total production amount of metabolites (lactic acid) in the first to third periods (specific periods) to the second total production amount of metabolites during the entire period of exercise. The higher the value, the more likely it is to contribute to the above-mentioned increase in LT. Therefore, it is preferable to increase the ratio from the viewpoint of improving endurance exercise ability.

In addition, in this embodiment, the first total production amount and the second total production amount are defined as terms in which the coefficients a _i and/or k _i of each term in the metabolic reaction equation adopted this time are positive (hereinafter referred to as The period covered by the value calculated using the formula created by taking out only the "positive value term" (in the case of the first total production amount, the period corresponding to the first to third periods; the second total production amount In this case, it is calculated by cumulative addition over the entire period of exercise).

(vi) It is preferable that the second total production amount be close to the target cumulative production amount determined depending on the subject from the viewpoint of improving endurance exercise ability. For example, a training exercise in which the cumulative amount of metabolites produced changes over time as shown in FIG. 8 is preferable from the viewpoint of improving endurance exercise ability.

Using the above conditions (i) to (iv) as criteria, the server device 400 evaluates the training exercise candidates. Based on this evaluation, the server device 400 determines the effectiveness of each training exercise candidate for the subject. Then, the server device 400 generates recommended training exercise information (recommended course, recommended exercise period length, exercise mode (speed, guideline for taking breaks, etc.), etc.) based on the result of the determination.

Note that the recommended training exercise information may include training course information such as whether the exercise is uphill, on a flat road, or on an indoor trainer of the type installed indoors. Alternatively, suggestions may be made along with course information including specific points based on the training history up to that point.

When the recommended training exercise information is generated in this way, the server device 400 uses the generated recommended training exercise information by the user terminal device 300 _p that sent the current recommended training exercise presentation request and/or by the user. It is transmitted to a portable measurement unit (hereinafter referred to as portable measurement unit 100 _m ). Upon receiving the recommended training exercise information, the user terminal device _300p and/or the portable measurement unit _100m presents the recommended training exercise information to the current subject.

《Evaluation of the training exercise performed》
Next, evaluation of the performed training exercise in the training support system 900 will be explained.

When evaluating the training exercise that has been performed, first, the subject goes to a training exercise course to start the exercise. Then, the subject inputs identification information of the subject and designation of the type of exercise state parameter value detected by the portable measurement unit 100 _m to the portable measurement unit 100 _m .

After that, when the subject inputs an instruction to start logging the sensor detection results to the portable measurement unit 100 _m , the processing unit 120 _m sends a metabolic reaction rate equation request specifying the subject's identification information. and sends the generated metabolic reaction rate equation request to the server device 400. Upon receiving this reaction-metabolic equation request, the server device 400 executes a metabolic reaction rate equation transmission process.

In the process of transmitting the metabolic reaction rate equation, the server device 400 first extracts the latest metabolic reaction rate equation for the specified subject based on the identification information of the specified subject. Then, the server device 400 sends the extracted latest metabolic reaction rate equation to the portable measurement unit 100 _m that sent the current metabolic reaction rate equation request.

Upon receiving the latest metabolic reaction rate equation, the processing unit 120 _m starts collecting the sensor detection results and starts calculating the blood lactate concentration using the collected results and the latest metabolic reaction rate equation. Subsequently, the processing unit 120 _m generates display data for displaying the recent temporal change in the calculated blood lactate concentration, and sends the generated display data to the display unit 130 _m . As a result, the display unit 130 _m displays the recent temporal changes in the blood lactic acid concentration, thereby presenting to the subject the recent temporal changes in the blood lactic acid concentration. Furthermore, the processing unit 120 _m transmits the collected data of the calculated blood lactic acid concentration and the sensor detection results to the server device 400 together with time information.

Thereafter, the processing unit 120 _m continues the operation of starting the collection of sensor detection results until an instruction to end the logging operation of sensor detection results is input. When the instruction to end the logging operation of sensor detection results is input, the processing unit 120 _m transmits a notification to the server device 400 that the current training exercise has ended, and starts a new logging operation of sensor detection results. It enters a waiting state for the end specification input.

Upon receiving the notification that the current training exercise has been completed as described above, the server device 400 executes evaluation processing of the current training exercise.
In evaluating such training exercise, the server device 400 determines (i) the length of the period (third period) during which the blood lactic acid concentration is within a predetermined range of 2 to 14 mmol/l, including the rest period; (ii) the ratio of the length of the period in this state to the period during training exercise, (iii) the length of the period during which the lactic acid concentration was on the rise (second period length), and/or (iv) ) Recommended training exercise information (recommended course, recommended exercise period length, exercise mode (speed, guidelines for taking breaks, etc.)) using the length of the period during which the lactic acid concentration value can be said to be maintained (first period length) as a judgment indicator An evaluation is performed using the evaluation index.

Note that the longer the length of these periods and the higher the percentage, the higher the quality of the current training is evaluated.

FIG. 9 shows an example of a temporal change in exercise intensity during a training exercise (FIG. 9(A)) and a temporal change in blood lactate concentration ( FIG. 9(B )) corresponding to an example of a temporal change in exercise intensity. ) )It is shown. Note that in FIG. 9(A), power is typically shown as exercise intensity.

In the example of Figure 9, (i) the blood lactate concentration is within a predetermined range of 2 to 14 mmol/l (in the example of Figure 9, within the range of 4 to 8 mmol/l), including the rest period; (ii) the period length of the state is long, and (ii) the ratio of the period length of the state to the period during training exercise is high. Therefore, the training exercise in the example of FIG. 9 is evaluated to be a high-quality training exercise.

FIG. 10 shows another example of the temporal change in exercise intensity during a training exercise (FIG. 10(A)) and a temporal change in blood lactate concentration corresponding to an example of the temporal change in exercise intensity (FIG. 10(A)). B)) is shown. Note that power is also typically shown in FIG. 10(A) as exercise intensity.

The example in FIG. 10 is an example of three intermittent movements. When exercising high intensity repeatedly with a short rest period, being able to recover with a short rest period is effective in improving competitive ability. During the first dash, the lactic acid concentration continues to rise, and by stopping the legs, the concentration begins to decrease rapidly, and the next dash begins before the lactic acid concentration falls below 4 mmo/l. During the second rest period, he was resting for a longer period of time, and his lactate concentration did not drop below 2 mmol/l, but it did drop to 3.5 mmol/l. It is desirable to shorten the second rest period to the same level as the first, shorten the concentration drop time, and start the next dash when the concentration is higher. The period in which the concentration is decreasing is preferable in terms of keeping the concentration high, but it is preferable to shorten the period in which the concentration continues to decrease.

In addition, the higher the ratio of the first total production amount of metabolites (lactic acid) during the first to third periods (specific period) to the second total production amount of metabolites during the entire training exercise period, the more effective it is for the subject. It is determined that the movement was in a similar manner.

Furthermore, it is determined that the closer the second total production amount is to the target cumulative production amount determined according to the subject, the more effective the exercise mode is for the subject.

When the evaluation is completed in this manner, the server device 400 generates time change information of exercise intensity and time change information of blood lactic acid concentration during the current training exercise period. Then, the server device 400 transmits the time change information generated in this way and information on the evaluation results to the user terminal device 300 _p corresponding to the target person. As a result, the user terminal device _300p presents to the subject what type of training exercise the current training exercise was and the evaluation result of the quality of the current training exercise.

As described above, in the training support system 900 of the present embodiment, the server device 400 functioning as a calculation unit measures the metabolic rate of lactic acid in the blood according to a plurality of exercise state parameter values during pre-exercise of the subject. Based on the metabolic reaction rate equation of lactic acid of the subject obtained from the results, calculate the time change in the concentration of lactic acid in accordance with the time change of at least one of the exercise state parameter values during the training exercise of the subject. . Then, the server device 400 functioning as an evaluation unit determines the length of time during which the calculated lactic acid concentration is maintained, increased, or maintains a value within a predetermined range during the training exercise performed by the subject. Then, evaluate the suitability of the content of the training exercise for improving endurance exercise ability for the subject.

Therefore, according to the training support system 900 of the present embodiment, while securing the advantage that it is not necessary to directly measure the blood concentration of lactic acid during training exercise by drawing blood etc. in the conventional technique, Objectively evaluate the quality of the exercise performed by the subject to improve endurance exercise capacity using a specific indicator of the length of time during which the blood lactic acid concentration remains within a predetermined range during training exercise. It is possible to conduct a comprehensive evaluation.

In addition, in the training support system 900 of the present embodiment, the server device 400 determines that the longer the period during which the calculated lactic acid concentration is maintained, increased, or maintained at a value within a predetermined range, the more the training exercise performed The content was highly appropriate for the target audience. Therefore, it is possible to easily and rationally evaluate the quality of the training exercise content.

Furthermore, in the training support system 900 of the present embodiment, the temporal change in the blood concentration of lactic acid up to the present moment during the training exercise is presented to the subject using a display image. Therefore, the quality of the training exercise up to the present time can be presented in real time to the subject who is performing the training exercise.

In addition, in the training support system 900 of the present embodiment, the server device 400 functioning as a derivation unit estimates that the temporal change in the concentration of lactic acid calculated by the metabolic reaction rate equation corresponds to a training exercise that is effective for the subject. Determine the training mode. Therefore, in addition to evaluating the quality of the exercise performed by the subject, it is possible to derive a training mode that is estimated to correspond to a training exercise that is effective for the subject.

In addition, in the training support system 900 of the present embodiment, the server device 400 determines which of the plurality of training mode candidates, the longer the period in which the calculated lactic acid concentration maintains a value within a predetermined range, the more the target It is judged that this is an effective training format for people. Therefore, it is possible to easily and rationally propose a high-quality training mode to the subject.

[Modification of embodiment]
The present invention is not limited to the embodiments described above, and various modifications are possible.

For example, in the above embodiment, the metabolite was lactic acid. On the other hand, any metabolic substance whose concentration in the body changes with exercise and whose concentration in the body can be measured can be used in place of lactic acid. For example, creatine phosphate can be employed as the metabolite.

In the above embodiment, the blood lactic acid concentration is presented in real time using the displayed image, but the blood lactic acid concentration may be presented in real time using output audio in addition to the displayed image.

Further, in the above embodiment, in the portable measurement unit, the sensor and the processing unit are connected by short-range wireless connection, but they may be connected by wire.

In addition, in the above embodiment, the portable measurement unit and the user terminal device are separate devices, but if the processing capacity of the processing unit in the portable measurement unit is high, the processing unit can function as the user terminal device. It may be possible to perform the following.

Further, in the above embodiment, training exercise is evaluated, but exercise in a game in which the user actually participates may be evaluated.

Furthermore, in the above-described embodiment, when deriving recommended training exercises for implementation candidates, training exercise courses that are assumed to be easy to use for the subject are extracted from previous driving records. Then, for each of the extracted training exercise courses, at least one training exercise candidate is extracted based on the metabolic reaction rate equation specified for the subject, the slope distribution during the course, etc.

In contrast, by applying the metabolic reaction rate equation specified for the subject using actual measured values of time changes in exercise state parameters during actual races, etc. of other subjects, it is possible to The motor ability of the subject may be compared with the motor ability of other subjects. In this case, if the subject participates in the same race, etc. as other subjects and tries to compete with the other subjects, it is necessary to check whether the subject is able to do the exercise comfortably and whether he or she becomes exhausted during the exercise. It is possible to evaluate the quality of exercise for the subject, such as whether the subject will end up in a state of.

Furthermore, in the above embodiment, the period in which the blood lactic acid concentration is 4 to 8 mmol/l is assumed to be within a predetermined concentration range of 2 to 14 mmol/l, including the rest period. The evaluation criterion was to make the length ( third period length ) as long as possible. On the other hand, the evaluation criterion may be to make the period length ( third period length ) in which the blood lactic acid concentration is 2 to 14 mmol/l as long as possible. Furthermore, the evaluation criterion may be to make the length of the period ( third period length ) in which the blood lactic acid concentration is 2 to 23 mmol/l as long as possible.

INDUSTRIAL APPLICABILITY The present invention is useful in the field of training support systems that support training exercises.

100... Portable measurement unit 110... Sensor 120... Processing unit 130... Display unit (presentation section)
200... Advance measurement unit 210... Sensor 220... Lactate measuring device 230... Data logger 300... User terminal device 400... Server device (calculation unit, evaluation unit, derivation unit)

Claims (16)

Based on the metabolic reaction rate equation of the subject's metabolites obtained from the measurement results of the concentration of metabolites in the blood according to multiple exercise state parameter values during the subject's pre-exercise, a calculation unit that calculates a time change in the concentration of the metabolite according to a time change in at least one of the exercise state parameter values during exercise;
A first period of a first period during which the calculated range of change in the concentration of the metabolite is maintained at a predetermined value or less , and the concentration value of the metabolite can be said to be maintained during the exercise performed. and a third period length during which the calculated concentration of the metabolite is maintained within a predetermined range. an evaluation unit that evaluates the suitability of the quality of exercise for the subject;
A training support system comprising: Based on the metabolic reaction rate equation of the subject's metabolites obtained from the measurement results of the concentration of metabolites in the blood according to multiple exercise state parameter values during the subject's pre-exercise, a calculation unit that calculates a time change in the concentration of the metabolite according to a time change in at least one of the exercise state parameter values during exercise;
During the exercise of the implementation candidate, the range of change in the calculated concentration of the metabolite is maintained at a predetermined value or less , and the concentration value of the metabolite can be said to be maintained during the first period of the first period. and a third period length of a third period in which the calculated concentration of the metabolite is maintained within a predetermined range. an evaluation unit that evaluates the suitability of the candidate's exercise quality for the subject;
A training support system comprising: 3. The training support system according to claim 1, wherein the metabolic reaction rate equation is one of the following (I) to (IX).

In the above formulas (I), (IV) and (VII), [met] represents the concentration of the metabolite, [tor] represents the torque value, and [cad] represents the rotational speed (rpm) and pitch of the leg or arm. represents any cadence or movement speed selected from the group consisting of number and movement speed, respectively. [Weight] represents the subject 's weight, and [HR] represents the heart rate (bpm). [slope] represents the course condition including the slope angle distribution of the course. [temp] represents the temperature or body temperature. Further, the power order is a real number.
In the above formulas (II), (V), and (VIII), [force] is the force value, and [stride (pitch)] is the parameter of the speed of body movement, similar to the pitch. time, stride length or pitch when riding a handbike or running, respectively. [weight], [HR], [slope], [met], and [temp] are the same as in formula (I). Further, the power order is a real number.
In the above formulas (III), (VI), and (IX), [power (work rate)] is force, horizontal and vertical velocity and acceleration, vertical fluctuation height of the body, ground contact time, and running time. Includes work rate determined from measured parameters such as jump angle and stride period (pitch). [weight], [HR], [slope], [met], and [temp] are the same as in formula (I). Further, the power order is a real number. When the evaluation index includes the third period length, the evaluation unit determines that the longer the period during which the calculated concentration of the metabolite is maintained within the predetermined range, the more the exercise The training support system according to any one of claims 1 to 3, characterized in that the quality of the training is evaluated to be highly appropriate for the subject. When the evaluation index includes the first period length, the evaluation unit maintains that the calculated range of change in the concentration of the metabolite is equal to or less than a predetermined value , and determines that the concentration value of the metabolite is The training according to any one of claims 1 to 4, characterized in that the longer the period of time during which the exercise can be said to be maintained , the higher the suitability of the quality of the exercise for the subject is evaluated. support system. The training support system according to any one of claims 1 to 5 , further comprising a presentation unit that presents to the subject a time change in the concentration of the metabolite during the exercise. Claim further comprising: a derivation unit for deriving an exercise mode in which a time change in the concentration of the metabolite calculated by the metabolic reaction rate equation is estimated to correspond to exercise effective for the subject. 7. The training support system according to any one of 1 to 6 . When the evaluation index includes the third period length, the deriving unit maintains the calculated concentration of the metabolite among the plurality of exercise mode candidates within a predetermined range. 8. The training support system according to claim 7 , wherein the longer the period length, the more effective the exercise mode candidate is for the subject. When the evaluation index includes the first period length, the derivation unit maintains that the calculated range of change in the concentration of the metabolite is equal to or less than a predetermined value , and determines that the concentration value of the metabolite is 9. The training support system according to claim 7 , wherein the longer the period of time during which the exercise can be said to be maintained , the more effective the exercise mode is for the subject. The higher the ratio of the first total production amount of the metabolites in the first and third periods to the second total production amount of the metabolites during the exercise period, the more effective the exercise mode is for the subject. The training support system according to any one of claims 1 to 9, characterized in that the training support system makes a judgment. 11. The closer the second total production amount is to a target cumulative production amount determined according to the subject, the more effective the exercise mode is for the subject. Training support system. The training support system according to any one of claims 1 to 11 , wherein the metabolite is lactic acid or creatine phosphate. the metabolite is lactic acid,
The predetermined range is comprised between 2 and 23 mmol/l.
13. The training support system according to claim 12 . The predetermined range is comprised between 2 and 14 mmol/l.
14. The training support system according to claim 13 . A training support method used in a training support system comprising a calculation unit and an evaluation unit,
The calculation unit is based on the metabolic reaction rate equation of the subject's metabolites obtained from the results of the concentration of the metabolites in the blood according to the plurality of exercise state parameter values during the subject's pre-exercise, a calculation step of calculating a time change in the concentration of the metabolite in accordance with a time change in at least one of the exercise state parameter values during exercise of the subject;
A first method in which the evaluation unit determines that the calculated range of change in the concentration of the metabolite is maintained at a predetermined value or less during the exercise performed , and that the concentration value of the metabolite is maintained. The quality of the exercise performed based on an evaluation index that includes at least one of a period length and a third period length in which the calculated concentration of the metabolite maintains a value within a predetermined range. an evaluation step of evaluating suitability for the target person;
A training support method comprising: A training support method used in a training support system comprising a calculation unit and an evaluation unit,
The calculation unit is based on the metabolic reaction rate equation of the subject's metabolites obtained from the results of the concentration of the metabolites in the blood according to the plurality of exercise state parameter values during the subject's pre-exercise, a calculation step of calculating a time change in the concentration of the metabolite in accordance with a time change in at least one of the exercise state parameter values during exercise of the subject;
The evaluation unit determines that during the candidate exercise, the calculated range of change in the concentration of the metabolite is maintained at a predetermined value or less , and it can be said that the concentration value of the metabolite is maintained . of the candidate exercise based on an evaluation index that includes at least one of a first period length and a third period length in which the calculated concentration of the metabolite maintains a value within a predetermined range. an evaluation step for evaluating the suitability of the quality for the target audience;
A training support method comprising:

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