JP7374819B2 - Information output device, operating method and program for the information output device - Google Patents

Description

Article 30, Paragraph 2 of the Patent Act applies: http://www. ritsumei. ac. jp/file. jsp? id=431011&f=. pdf (publishing address), September 2, 2020 (posting date) [Publications, etc.] http://www. ritsumei. ac. jp/news/detail/? id=1479 (publishing address), September 4, 2020 (posting date) [Publications, etc.] https://www. asics. com/jp/ja-jp/blog/article/hypoxia-training (publishing address), September 10, 2020 (posting date) [Publications, etc.] “Exercise intensity” exhibited on October 9, 2021 [Publications, etc.] Materials on the "Relationship between SpO▲2▼ and RPE" exhibited on November 1, 2020 [Publications, etc.] Ordinance Materials regarding “2020 Hit Prediction 100” announced on November 2, 2020 [Publications, etc.] Chunichi Shimbun, page 16 of the morning edition dated November 13, 2021 [Publications, etc.] Nikkei MJ, page 005, Reiwa November 18, 2020 (date of publication) [Publications, etc.] Asahi Shimbun, December 9, 2020, evening edition page 2 [Publications, etc.] https://shiruto. jp/sports/1874/ (publishing address), January 14, 2020 (posting date) [Publications, etc.] Materials on “tolerance to hypoxic training” announced on February 21, 2020

The present invention relates to an information output device, method, and program, and more particularly to a device, method, and program for outputting information regarding a user's tolerance to a hypoxic environment.

In recent years, for example, in order to efficiently improve a user's physical performance, hypoxia has been developed in an environment with a lower oxygen concentration (hereinafter referred to as a ``hypoxic environment'') than in a normal oxygen environment (hereinafter referred to as a ``normal oxygen environment''). Facilities for oxygen training are emerging.

Furthermore, techniques for predicting physical aptitude for high places are known (for example, see Non-Patent Document 1). The technology described in Non-Patent Document 1 predicts a user's physical aptitude for high altitudes based on the slope of blood oxygen concentration (hereinafter referred to as "SpO ₂ ") with respect to heart rate during a hypoxic exercise stress test. ing.

Takeki Maekawa, Hatsufune Irie, Masayoshi Yamamoto, "Prediction of high altitude physical aptitude by hypoxic exercise stress test using normal pressure hypoxic chamber", Sports Training Science, 2002, p. 47-53

It is thought that by using the technique described in Non-Patent Document 1, it is possible to predict the aptitude or tolerance of hypoxic training, which is also performed in a hypoxic environment. However, since there are large individual differences in heart rate, it is thought that the technique described in Non-Patent Document 1 is likely to cause variations in the determination results of hypoxia tolerance. Therefore, there was room for improvement in terms of determination accuracy.

As a result of intensive studies to solve this problem, the inventors determined that SpO ₂ and perceived exercise intensity (hereinafter referred to as "RPE"), which indicates the user's subjective degree of burden, are calculated based on the user's aptitude or tolerance to a hypoxic environment. We obtained a new finding that there is a different correlation between the We came up with the idea that by using this knowledge, it would be possible to make more accurate determinations.

In view of the above problems, an object of the present invention is to provide a technique for determining tolerance to a low-oxygen environment with high accuracy.

In order to solve the above problems, an information output device according to an aspect of the present disclosure provides a normoxic resting state in which the user is resting in a normoxic environment, a hypoxic resting state in which the user is resting in a hypoxic environment, and an output unit that outputs tolerance information indicating the user's tolerance to a hypoxic environment based on the user's blood oxygen concentration obtained in a hypoxic exercise state in which the user is exercising in a hypoxic environment.

Note that any combination of the above components and the expression of the present invention converted between methods, devices, systems, computer programs, data structures, recording media, etc. are also effective as aspects of the present invention.

According to the present invention, resistance to a low oxygen environment can be determined with high accuracy.

FIG. 1 is a diagram illustrating the overall configuration of a hypoxic environment chamber and system according to the present embodiment. FIG. 1 is a schematic configuration diagram of a user-worn device according to the present embodiment. FIG. 1 is a schematic configuration diagram of an information terminal according to the present embodiment. FIG. 1 is a schematic configuration diagram of a server according to the present embodiment. FIG. 5 is a diagram showing changes in SpO ₂ for each type of hypoxia tolerance when SpO ₂ is measured in different situations. FIGS. 6(a) to 6(d) show the changes in SpO ₂ for each state for groups A to D, respectively. 2 is a flowchart illustrating a method for determining hypoxic tolerance according to the present embodiment. 3 is a flowchart illustrating a method of providing load information according to the present embodiment.

Embodiments of the present invention will be described below. The specific numerical values and the like shown in the embodiments are merely illustrative to facilitate understanding of the invention, and do not limit the invention unless otherwise specified. In this specification and the drawings, elements having substantially the same functions and configurations are designated by the same reference numerals to omit redundant explanation, and elements not directly related to the present invention are omitted from illustration. do.

(Overall Configuration) As shown in FIG. 1, a user 1 is training using a training device 2 in a hypoxic environment room 100. Further, the user 1 is wearing a user-worn device 10. An information terminal 20 is provided inside the hypoxic environment chamber 100.

The training device 2 of this embodiment is a treadmill. The treadmill is used by the user 1 to run or walk indoors. In this embodiment, the exercise intensity is adjusted by changing the set speed of running or walking on the treadmill. However, the training device 2 is not limited thereto, and may be another training device such as a fitness bike. Furthermore, the user 1 is not limited to the training equipment 2, and may perform hypoxic training in the hypoxic environment room 100 using exercise equipment such as a pool.

The oxygen concentration control device 3 controls the oxygen concentration in the hypoxic environment chamber 100. The oxygen concentration control device 3 of this embodiment includes, for example, a pump capable of sucking and releasing gas. For example, the oxygen concentration control device 3 supplies into the hypoxic environment chamber 100 a gas whose oxygen concentration is adjusted according to the target oxygen concentration so that the inside of the hypoxic environment chamber 100 has a target oxygen concentration. . Thereby, in the hypoxic environment chamber 100 of this embodiment, a hypoxic environment is realized at normal pressure. For example, while the oxygen concentration in the air in a normal oxygen environment is about 20.9%, the oxygen concentration control device 3 can realize an oxygen concentration of 15 to 17% in the hypoxic environment chamber 100. Note that the hypoxic environment is not limited to a normal pressure, low oxygen environment, but may be realized at a low pressure comparable to that at a high altitude of 2,000 to 3,000 meters above sea level, for example.

The user-worn device 10 and the information terminal 20 are configured to be able to communicate with each other, for example, via short-range wireless communication such as Bluetooth. The information terminal 20 and the server 30 are configured to be able to communicate with each other via a network 40, for example. For the network 40, various networks such as a WAN (Wide Area Network), a LAN (Local Area Network), and close proximity wireless communication can be used.

The user-worn device 10 detects the blood oxygen concentration (hereinafter referred to as "SpO ₂ ") of the user 1 and transmits it to the information terminal 20 . As shown in FIG. 2, the user-worn device 10 includes a sensor device 11, a storage device 12, a communication device 13, and a processing device 14. The user-worn device 10 is attached, for example, to the arm or finger of the user 1, and is attached to each part of the user's body as appropriate depending on the type of exercise and the like.

The sensor device 11 includes an SpO ₂ sensor such as a pulse oximeter that detects SpO ₂ . The sensor device 11 outputs SpO ₂ detected by the SpO ₂ sensor to the processing device 14 . The sensor device 11 may include, for example, a body temperature sensor, a pulse sensor, etc., and may output these detected values to the processing device 14.

The storage device 12 stores various data acquired by the user-worn device 10. The storage device 12 is configured by various types of memories such as ROM (Read Only Memory) and RAN (Random Access Memory). The storage device 12 also stores various programs for executing various controls in the user-attached device 10.

The communication device 13 performs data communication between the user-worn device 10 and the information terminal 20. The communication device 13 includes, for example, a transceiver compatible with short-range wireless communication standards such as Bluetooth (registered trademark), Wi-Fi (registered trademark), and NFC (Near Field Communication).

The processing device 14 executes arithmetic processing for various controls in the user-worn device 10. The processing device 14 includes, for example, a CPU (Central Processing Unit), a DSP (Digital Signal Processor), and the like. The processing device 14 transmits the SpO ₂ of the user 1 output from the sensor device 11 to the information terminal 20 via the communication device 13 .

Note that the user-worn device 10 includes, for example, a display (not shown) for displaying text information and image information, a speaker (not shown) for generating sound, an input device for the user 1 to perform input operations, etc. May include.

The information terminal 20 is an interface for inputting and outputting information between the user 1, the user-worn device 10, and the server 30. As shown in FIG. 3, the information terminal 20 includes an input device 21, a terminal storage device 22, a terminal communication device 23, a terminal processing device 24, and an information providing device 25. The information terminal 20 is, for example, an information terminal used by the user 1 such as a smartphone or a tablet PC. The information terminal 20 transmits, for example, the identification information of the user 1, the SpO ₂ of the user 1 acquired from the user-worn device 10, and the user input information input by the user 1 to the server 30. The information terminal 20 acquires resistance information and load information, which will be described later, from the server 30 and provides them to the user 1.

The input device 21 receives user input information input from a user. The input device 21 includes, for example, a touch panel, operation buttons, a microphone for recognizing the voice of the user 1 (all not shown), and the like.

The terminal storage device 22 stores various data acquired by the information terminal 20. The terminal storage device 22 is composed of various types of memories such as ROM and RAN, for example. The terminal storage device 22 also stores various programs for executing various controls in the information terminal 20. The terminal storage device 22 stores, for example, SpO ₂ of the user 1 acquired from the user-worn device 10 and resistance information acquired from the server 30, which will be described later.

The terminal communication device 23 performs data communication with the user-worn device 10 and also performs data communication with the server 30 via the network 40.

The terminal processing device 24 executes arithmetic processing for various controls in the information terminal 20. The terminal processing device 24 includes, for example, a CPU, a DSP, and the like. The terminal processing device 24 transmits the SpO ₂ of the user 1 to the server 30 via the terminal communication device 23.

The information providing device 25 outputs various information to the user 1. The information providing device 25 includes, for example, a display (not shown) for displaying text information and image information, and a speaker (not shown) for generating sound.

In addition to being used by the user 1, the information terminal 20 may be used by an administrator such as a coach who instructs the user 1 in training.

The server 30 generates resistance information and load information, which will be described later, and transmits them to the information terminal 20. As shown in FIG. 4, the server 30 includes a server storage device 31, a server communication device 32, and a server processing device 33. The server 30 of this embodiment is an example of an information output device.

The server storage device 31 stores various data acquired by the server 30. The server storage device 31 is composed of various memories such as ROM and RAN, for example. Additionally, the server storage device 31 stores various programs for executing various controls in the server 30. The server storage device 31 stores, for example, identification information received from the information terminal 20 and resistance information generated by a generation unit 36, which will be described later, in association with each other.

The server communication device 32 performs data communication with the information terminal 20 via the network 40.

The server processing device 33 executes arithmetic processing for various controls in the server 30. The server processing device 33 includes, for example, a CPU, a DSP, and the like.

Further, the server processing device 33 includes an acquisition section 34, a determination section 35, a generation section 36, and an output section 37. Each part of the server processing device 33 can be realized in terms of hardware by electronic elements such as a CPU, mechanical parts, etc., and in terms of software can be realized by a computer program, etc., but in FIG. 4, it is realized by their cooperation. Functional blocks are depicted. Therefore, those skilled in the art will understand that these functional blocks can be realized in various forms by combining hardware and software.

The acquisition unit 34 acquires various information transmitted from the information terminal 20 and various information stored in the server storage device 31, for example. In particular, the acquisition unit 34 acquires the SpO ₂ of the user 1.

The determining unit 35 determines the tolerance of the user 1 to a hypoxic environment (hereinafter referred to as "hypoxic tolerance"). Further, the determining unit 35 determines whether the user's SpO ₂ is outside the appropriate range.

The generation unit 36 generates tolerance information indicating the hypoxic tolerance of the user 1 and load information regarding the load on the user's 1 body.

The output unit 37 outputs the resistance information or load information generated by the generation unit 36 to the information terminal 20 via the server communication device 32.

(Overview of hypoxic training) An overview of hypoxic training will be explained below. Hypoxic training is a training method that is actively adopted by mountaineers, marathon runners, and the like. In hypoxic training, training is performed in a hypoxic environment where the oxygen concentration is lower than in a normoxic environment.

When the user 1, who normally operates under a normal oxygen environment, enters a hypoxic environment, the amount of oxygen supplied to the user's 1 body naturally decreases. Therefore, although the SpO ₂ of user 1 is normally in the 90% range, it decreases to, for example, in the 80% range due to the load caused by the hypoxic environment. When _SpO2 drops to around 80%, the body senses the lack of oxygen and takes in more oxygen to cope with the lack of oxygen, for example by increasing the amount of hemoglobin in the blood. , trying to increase the ability to supply oxygen. As a result, for example, cardiopulmonary function is strengthened and endurance is improved.

Conversely, if the load caused by, for example, hypoxic training is too small and SpO ₂ is maintained at, for example, 90% or higher, the effects of hypoxic training cannot be expected to be that great. On the other hand, if the load due to hypoxic training is too large and SpO ₂ drops to, for example, less than 80%, the burden on the user's 1 body will become extremely large. Therefore, in order for the user 1 to perform hypoxic training efficiently and safely, it is important to apply a load with an appropriate exercise intensity such that SpO ₂ is, for example, 80% to 90%.

By the way, it is known that hypoxic training has different effects on SpO ₂ depending on the person, so there are individual differences in hypoxic tolerance. For example, during hypoxic training, some people's SpO ₂ decreases significantly (ie, people with low hypoxia tolerance), while other people's SpO ₂ does not decrease as much (ie, people with high hypoxia tolerance). Therefore, the user is unable to determine what level of exercise intensity is appropriate for the user to apply to himself or herself, and training may not be performed at an appropriate exercise intensity.

As one method of improving this problem, a method of determining a user's hypoxic tolerance has been proposed. This is because if the user's hypoxic tolerance can be determined, training can be performed at an exercise intensity suitable for the user's hypoxic tolerance by adjusting the load according to the hypoxic tolerance. For example, the technology described in Non-Patent Document 1 evaluates a user's physical aptitude for high altitudes based on the slope of blood oxygen concentration (hereinafter referred to as "SpO ₂ ") with respect to heart rate during a hypoxic exercise stress test. I'm predicting. It is thought that hypoxic tolerance can be predicted using this technology.

(Problem) However, since there are large individual differences in heart rate, it is thought that the technique described in Non-Patent Document 1 is likely to cause variations in the determination results of hypoxia tolerance. Therefore, there was room for improvement in terms of determination accuracy.

(Findings of the Inventors) As a result of intensive studies, the inventors have found that hypoxia tolerance can be determined according to changes in SpO ₂ when changing oxygen concentration environmental conditions and exercise conditions. According to this knowledge, it becomes possible to determine hypoxic tolerance with higher accuracy than with the conventional configuration. Furthermore, when using the hypoxia tolerance determined using the hypoxia tolerance determination method of the present embodiment, we have found that SpO ₂ and RPE show different correlations depending on the determined hypoxia tolerance. Obtained. According to this knowledge, it becomes possible to perform hypoxic training at an exercise intensity appropriate to the determined hypoxic tolerance. These findings will be explained using FIG. 5.

In FIG. 5, the normoxic resting state is a state of resting (for example, sitting in a chair and waiting) in a normoxic environment. Hypoxic rest is a state of resting in a hypoxic environment. A hypoxic exercise state is a state in which a person exercises (for example, walking at a speed of 4 km/h) in a hypoxic environment. In FIG. 5, measured values of SpO ₂ for a plurality of users 3 minutes after each state were used in each of the normoxic resting state, hypoxic resting state, and hypoxic exercise state.

Referring to the normoxic resting state and hypoxic resting state in Figure 5, there is a group in which the amount of decrease in SpO ₂ from the normoxic resting state is relatively small, and a group in which the amount of decrease in SpO ₂ from the normoxic resting state is relatively large. It is classified as Therefore, it can be seen that the normoxic resting state and the hypoxic resting state have a correlation. Furthermore, referring to the hypoxic resting state and hypoxic exercise state in FIG. 5, of the two groups classified by the hypoxic resting state, there is a group in which the amount of decrease in SpO ₂ from the hypoxic resting state is relatively small; They are classified into a group in which the amount of decrease in SpO ₂ from a hypoxic resting state is relatively large. Therefore, it can be seen that the hypoxic resting state and the hypoxic exercise state have a correlation. Therefore, from these results, the magnitude of the difference between SpO ₂ in normoxic resting state and SpO ₂ in hypoxic resting state, and the difference between SpO ₂ in hypoxic resting state and SpO ₂ in hypoxic exercise state. Based on this, it can be seen that it can be classified into any of groups A to D.

Furthermore, from these results, as shown in FIGS. 6(a) to 6(d), the following can be found. As shown in FIG. 6(a), Group A shows a type that is not easily affected by both the hypoxic environment itself and exercise in the hypoxic environment. As shown in FIG. 6(b), group B shows a type that is not easily affected by the hypoxic environment itself but is easily affected by exercise in the hypoxic environment. As shown in FIG. 6(c), group C shows a type that is easily affected by the hypoxic environment itself and is not easily affected by exercise in the hypoxic environment. As shown in FIG. 6(d), Group D shows a type that is easily affected by both the hypoxic environment itself and exercise in the hypoxic environment.

Additionally, Figure 5 shows the relationship between _SpO2 and RPE in a hypoxic environment. Table 1 below shows the numerical values. In Table 1, n indicates the number of samples (n=54).

In FIG. 5 and Table 1, RPE11 indicates a state in which user 1 feels comfortable. RPE13 indicates a state in which user 1 feels it is a little harsh. RPE15 indicates a state in which user 1 feels that it is difficult. RPE17 indicates a state that user 1 feels is quite severe. For example, SpO ₂ at RPE 11 is the SpO ₂ when each user runs in a hypoxic environment and the user determines that it is comfortable (RPE 11). The same is true for SpO ₂ at RPE13-17.

Referring to FIG. 5 and RPEs 11 to 17 in Table 1, the SpO ₂ of group A is significantly higher than that of groups AD. Although the SpO ₂ of Groups B and C are comparable, the amount of decrease in SpO ₂ when moving from RPE 11 to RPE 13 to 17 is smaller in Group B. The SpO ₂ of group A is significantly lower among groups A to D. In this way, when considering the SpO ₂ value at each RPE and the amount of change in SpO ₂ when moving to a different RPE, it can be seen that there are differences in the trends of SpO ₂ for each group A to D. . Therefore, it can be seen that subsequent changes in SpO ₂ can be predicted for each classification of groups A to D determined by the hypoxia tolerance determination method of the present embodiment.

(Method for determining hypoxic tolerance) As shown in FIG. 7, SpO ₂ in a normoxic resting state, SpO ₂ in a hypoxic resting state, and SpO ₂ in a hypoxic exercise state are obtained (S11). . In S11, first, the user 1 is placed in a normal oxygen resting state. The normoxic resting state is realized, for example, by the user 1 resting outside the hypoxic environment room 100 (for example, sitting on a chair and waiting).

Here, a measured value of SpO ₂ , for example, one minute after the user 1 is placed in a normoxic resting state, is transmitted from the information terminal 20 to the server 30. Thereby, the acquisition unit 34 acquires SpO ₂ of the user 1 in the normoxic resting state.

By the server 30 receiving the SpO ₂ of each of the hypoxic resting state and the hypoxic exercise state in the same manner as described above, the acquisition unit 34 receives the SpO 2 of the user 1 for each of the hypoxic resting state and the hypoxic exercise state. Get ₂ . Here, the hypoxic rest state is realized by the user 1 resting in the hypoxic environment chamber 100, and the hypoxic exercise state is realized by the user 1 exercising (for example, at a speed of 4 km/h) in the hypoxic environment chamber 100. (walking, etc.). Note that the measurement order of the normoxic resting state, hypoxic resting state, and hypoxic exercise state is not limited to this, and for example, SpO ₂ in the hypoxic exercise state may be measured first. Further, the SpO ₂ acquired for each state may be stored in the server storage device 31.

Next, the hypoxia tolerance of the user 1 is determined based on the SpO ₂ acquired for each of the normoxic resting state, hypoxic resting state, and hypoxic exercise state (S12). In S12, the determination unit 35 determines the hypoxia tolerance of the user 1 depending on whether the first difference is smaller than the first threshold and whether the second difference is smaller than the second threshold. Determine. Here, the "first difference" indicates the difference between SpO ₂ in the normoxic resting state and the SpO ₂ in the hypoxic resting state, and the "second difference" indicates the difference between SpO ₂ in the hypoxic resting state and the hypoxic resting state. The difference between SpO2 and _SpO2 is shown. Through this determination, the hypoxia tolerance of the user 1 is classified into one of a plurality of different hypoxia tolerance classifications (for example, the above groups A to D).

When the first difference is smaller than the first threshold and the second difference is smaller than the second threshold, hypoxia tolerance is determined as the first classification (group A). If the first difference is smaller than the first threshold and the second difference is greater than or equal to the second threshold, hypoxia tolerance is determined as a second classification (group B). If the first difference is greater than or equal to the first threshold and the second difference is smaller than the second threshold, hypoxia tolerance is determined as a third classification (group C). When the first difference is greater than or equal to the first threshold and the second difference is greater than or equal to the second threshold, hypoxia tolerance is determined as a fourth classification (group D). The first threshold value is, for example, a value within the range of 90-92, and the second threshold value is, for example, a value within the range of 86-92. The range of the first threshold is relatively narrow, for example 90 to 92, because it is in a resting state, so individual differences are unlikely to occur, and the range of the second threshold is relatively wide, for example 86 to 92, because it is in a state of exercise. This is because individual differences in the body's adaptation to exercise tend to occur. The optimal ranges of the first and second threshold values may be determined as appropriate through experiments or the like. Here, in a resting state, the body does not particularly require oxygen, so SpO ₂ is difficult to decrease. On the other hand, in a state of exercise, SpO ₂ tends to drop because oxygen in the blood is consumed by exercise. Therefore, it is preferable that the first threshold value is larger than the second threshold value.

Next, tolerance information indicating hypoxia tolerance is generated based on the hypoxia tolerance classification determined in S12 (S13). In S13, the generation unit 36 generates tolerance information indicating the classification (groups A to D) of hypoxia tolerance determined for the user 1.

Next, the resistance information generated in S13 is output (S14). For example, the output unit 37 outputs the resistance information to the information terminal 20 via the server communication device 32. As a result, this resistance information is output to the user 1 via the information providing device 25 of the information terminal 20. For example, the information providing device 25 displays the hypoxia tolerance classification in the tolerance information via the display. Along with this classification, an explanation of the classification may be displayed, such as, for example, if the user 1 is classified as group A, "a type that is not easily affected by a hypoxic environment" is displayed.

Note that the resistance information output from the output unit 37 is stored in the server storage device 31 in association with the identification information in the user information regarding the user 1. After that, this flow ends.

(Method of Providing Load Information) A method of providing load information when the user 1 is actually performing hypoxic training will be described using FIG. 8. This method is performed at predetermined time intervals after the user's hypoxia tolerance has been determined by the method described above.

SpO ₂ and RPE in a hypoxic exercise state are acquired (S21). In S21, the SpO ₂ of the user 1 during hypoxic training is detected by the user-worn device 10 and transmitted to the server 30 via the information terminal 20. Thereby, the acquisition unit 34 acquires SpO ₂ in a hypoxic exercise state.

Further, in S21, the RPE of the user 1 is transmitted from the information terminal 20 to the server 30 by the user 1 inputting the RPE into the information terminal 20 during hypoxic training. Thereby, the acquisition unit 34 acquires the RPE of the user 1.

Next, it is determined whether the SpO ₂ of the user 1 is outside the appropriate range (S22). The "appropriate range" of SpO ₂ here is determined according to the RPE of the user 1 and the hypoxic tolerance of the user 1. For example, the appropriate range is determined based on the table below.

The appropriate range may further be determined depending on the type of exercise that the user 1 is doing. For example, different appropriate ranges may be applied depending on whether the user 1 is running or walking in a pool.

If it is determined in S22 that it is not outside the applicable range, the flow advances to S23. On the other hand, if it is determined in S22 that it is outside the applicable range, the flow advances to S24.

In S23, it is notified that the SpO ₂ of the user 1 is within the appropriate range. For example, the generation unit 36 generates appropriate information including a display such as “SpO ₂ is within the appropriate range”, and the output unit 37 transmits this appropriate information to the information terminal 20. As a result, appropriate information is displayed on the display of the information providing device 25. After that, this flow ends.

In S24, load information regarding the load on the user's 1 body is generated. For example, if the SpO ₂ of the user 1 is below the appropriate range, the generation unit 36 generates load information indicating that the exercise intensity should be reduced. Further, for example, if the SpO ₂ of the user 1 is above the appropriate range, the generation unit 36 generates load information indicating that the exercise intensity will be increased.

The load information may be determined according to one or more of the hypoxic tolerance of the user 1, RPE, and the type of exercise that the user 1 is performing, for example. For example, if user 1's hypoxic tolerance is in group A or RPE 11, load information is generated that includes a display that says, "There seems to be plenty of room, so it's okay to greatly increase the exercise intensity." On the other hand, for example, if user 1's hypoxic tolerance is in group D or RPE 13, load information is generated that includes a display saying "It's okay to increase the exercise intensity a little more." Further, for example, when the type of exercise is walking, load information is generated that includes a display saying "It is okay to increase the walking speed from 3 km/m to 5 km/m." On the other hand, if the type of exercise is a pool, load information is generated that includes a message that "It is okay to change from underwater walking to crawling." The combination of the user 1's hypoxic tolerance, RPE, and the type of exercise performed by the user 1 is also determined as appropriate depending on the use and purpose.

Next, load information is output (S25). The output unit 37 outputs the load information generated in S24 to the information terminal 20. As a result, the load information is displayed on the display of the information providing device 25, for example. After that, this flow ends.

(Modification) In the above embodiment, an example was shown in which the server 30 generates the resistance information, but the present invention is not limited to this, and the information terminal 20 instead of the server 30 may generate the resistance information. For example, the information terminal 20 may generate resistance information based on the SpO ₂ for each of the above states acquired from the user-worn device 10 and output it via the information providing device 25. Similarly, the load information may be generated by the information terminal 20 and output via the information providing device 25.

In the embodiment described above, the resistance information indicates the classification of hypoxia resistance, but the present invention is not limited to this, and, for example, the resistance information may be represented by a numerical value.

In the embodiment described above, an example is shown in which training is performed in the hypoxic environment chamber 100. However, the present invention is not limited to this, and for example, instead of training in the hypoxic environment chamber 100, the user 1 may wear a hypoxic mask and train while supplying low concentration oxygen to the user 1. Good too.

DESCRIPTION OF SYMBOLS 1... User, 2... Training equipment, 10... User-worn device, 11... Sensor device, 12... Storage device, 13... Communication device, 14... Processing device, 20... Information terminal, 21... Input device, 22... Terminal storage device , 23... terminal communication device, 24... terminal processing device, 25... information providing device, 30... server, 31... server storage device, 32... server communication measure, 33... server processing device, 34... acquisition section, 35... determination section , 36... Generation section, 37... Output section, 40... Network, 100... Hypoxic environment chamber.

Claims (9)

Obtained in a normoxic resting state where the user is resting in a normoxic environment, a hypoxic resting state where the user is resting in a hypoxic environment, and a hypoxic exercise state where the user is exercising in a hypoxic environment. an output unit that outputs resistance information indicating the user's resistance to a hypoxic environment based on the user's blood oxygen concentration ;
The resistance information includes one of a plurality of different resistance classifications,
The output section is
a first difference between the blood oxygen concentration in the normoxic resting state and the blood oxygen concentration in the hypoxic resting state is smaller than a first threshold value, and the blood oxygen concentration in the hypoxic resting state and the blood oxygen concentration in the hypoxic exercise state is smaller than a second threshold, outputting the resistance information including the first classification as the resistance classification,
If the first difference is smaller than the first threshold and the second difference is greater than or equal to the second threshold, the resistance information including the second classification as the resistance classification is output. Output device. The output unit, depending on whether a first difference between the blood oxygen concentration in the normoxic resting state and the blood oxygen concentration in the hypoxic resting state is smaller than a first threshold, The information output device according to claim 1 , which outputs the resistance information of different classifications. Depending on whether a second difference between the blood oxygen concentration in the hypoxic resting state and the blood oxygen concentration in the hypoxic exercise state is smaller than a second threshold, The information output device according to claim 1 or 2 , which outputs the resistance information of different classifications. The output section is
If the first difference is greater than or equal to the first threshold and the second difference is smaller than the second threshold, outputting the resistance information including a third classification as the resistance classification;
If the first difference is greater than or equal to the first threshold and the second difference is greater than or equal to the second threshold, the resistance information including a fourth classification as the resistance classification is output. The information output device according to any one of Items 1 to 3 . The output unit outputs load information regarding the load on the user's body when the blood oxygen concentration of the user is outside the appropriate blood oxygen concentration range in a hypoxic environment;
The information output device according to any one of claims 1 to 4 , wherein the appropriate range is determined according to the user's perceived exercise intensity indicating a subjective degree of burden and the user's tolerance. The information output device according to claim 5 , wherein the appropriate range is further determined according to the type of exercise that the user is doing. The information output device according to claim 5 or 6 , wherein the load information is determined according to one or more of the user's tolerance, the perceived exercise intensity, and the type of exercise performed by the user. A method of operating an information output device, the method comprising:
The processor of the information output device is configured to perform a normoxic resting state in which the user is resting in a normoxic environment, a hypoxic resting state in which the user is resting in a hypoxic environment, and a hypoxic resting state in which the user is exercising in a hypoxic environment. outputting tolerance information indicating the user's tolerance to a hypoxic environment based on the user's blood oxygen concentration obtained in a hypoxic exercise state , the tolerance information including a plurality of different tolerances. a first difference between the blood oxygen concentration in the normoxic resting state and the blood oxygen concentration in the hypoxic resting state is less than a first threshold; If the second difference between the blood oxygen concentration in the oxygen resting state and the blood oxygen concentration in the hypoxic exercise state is smaller than the second threshold, the resistance classification includes the first classification. Resistance information is output, and if the first difference is smaller than the first threshold and the second difference is greater than or equal to the second threshold, the resistance includes a second classification as the resistance classification. A method of operating the information output device, which performs the steps of outputting information . Obtained in a normoxic resting state where the user is resting in a normoxic environment, a hypoxic resting state where the user is resting in a hypoxic environment, and a hypoxic exercise state where the user is exercising in a hypoxic environment. outputting tolerance information indicating the user's tolerance to a hypoxic environment based on the user's blood oxygen concentration , the tolerance information including one of a plurality of different tolerance classifications; , a first difference between the blood oxygen concentration in the normoxic resting state and the blood oxygen concentration in the hypoxic resting state is smaller than a first threshold value, and the blood oxygen concentration in the hypoxic resting state When the second difference between the blood oxygen concentration and the blood oxygen concentration in the hypoxic exercise state is smaller than the second threshold, outputting the tolerance information including the first classification as the tolerance classification, and outputting the tolerance information including the first classification as the tolerance classification, 1 is smaller than the first threshold and the second difference is greater than or equal to the second threshold, the processor outputs the resistance information including the second classification as the resistance classification. A program to run.

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