JP7721083B2 - Blood circulation function evaluation device and blood circulation function training device - Google Patents

Description

This disclosure relates to a blood circulation function evaluation device and a blood circulation function training device.

A rehabilitation support device is known that aims to improve the blood circulation function of patients who have suffered from heart disease (see Patent Document 1). This device adjusts the ratio between voluntary control, which generates strain according to the patient's will, and autonomous control, which assists with pedaling.

Japanese Patent Application Laid-Open No. 2020-120910

The rehabilitation support device described above relies on the patient's own pedaling exercise, making it difficult to apply to patients with reduced lower limb function who are unable to pedal sufficiently (such as elderly people or hemiplegic patients).

One aspect of the present disclosure aims to provide a blood circulation function evaluation device that can suggest functional improvement exercises tailored to the user's physical abilities.

One aspect of the present disclosure is a blood circulation function evaluation device (1) comprising: a seat (11) configured to passively change a user's posture between a first posture and a second posture in which the user's lower back is higher than in the first posture; a measuring device (12) configured to measure biological information including at least the user's heart rate; and a control device (13) configured to evaluate the user's blood circulation function based on the results of measuring the biological information during at least one of an upward transition of the user from the first posture to the second posture by the seat (11) and a downward transition of the user from the second posture to the first posture by the seat (11).

With this configuration, passive posture transitions caused by the movement of the seat (11) can change the height of the heart while suppressing changes in the user's muscle strain. This allows for accurate evaluation of blood circulation function. Furthermore, by using the results of this evaluation, it is possible to suggest appropriate functional improvement exercises that are tailored to the user's physical abilities, including blood circulation function, regardless of the user's health condition or age.

In one aspect of the present disclosure, the control device (13) may be configured to evaluate the user's blood circulation function based on the measurement results of biological information during both the ascending transition and the descending transition. This configuration can improve the accuracy of the evaluation of blood circulation function.

In one aspect of the present disclosure, the control device (13) may be configured to operate the seat (11) during an upward or downward transition so that a load is imposed on the user that is tailored to the user's physical ability. With this configuration, the load can be set as a level that allows changes in biological information to be detected, tailored to the user's blood circulation function, muscle activity ability, etc. As a result, the accuracy of the evaluation of blood circulation function can be improved.

In one aspect of the present disclosure, the control device (13) may be configured to adjust the amount of strain on the user by setting the duration for which the seat surface angle of the seat (11) is maintained in an intermediate angle range of 40° to 70° during an upward or downward transition. This configuration makes it possible to induce changes in the state of biometric information suitable for evaluating blood circulation function in users with sufficient physical ability, while suppressing the induction of physical activity other than that related to blood circulation function.

In one aspect of the present disclosure, the measuring device (12) may include a blood pressure monitor (121) configured to measure the user's blood pressure. The seat (11) may include a support section (114) configured to change the height of the blood pressure monitor (121) in accordance with changes in the user's posture. This configuration can reduce fluctuations in the difference in elevation between the blood pressure measurement position and the position of the heart when the user's posture changes. As a result, the accuracy of evaluating blood circulation function can be improved.

In one aspect of the present disclosure, the control device (13) may be configured to adjust the posture of the seat (11) when the user is in the first posture and the deformation trajectory of the seat (11) during the upward transition to match the user's height or leg length. This configuration can improve the accuracy of the evaluation of blood circulation function.

Another aspect of the present disclosure is a blood circulation function training device (1) comprising: a seat (11) configured to passively change a user's posture between a first posture and a second posture in which the user's lower back is higher than in the first posture; and a control device (13) configured to operate the seat (11) so that a strain tailored to the user's physical ability is imposed on the user when the seat (11) causes the user to ascend from the first posture to the second posture or when the seat (11) causes the user to descend from the second posture to the first posture.

This configuration allows users with reduced motor function, such as lower limb strength, to be provided with training to improve their blood circulation. Furthermore, by adjusting the load to suit the user's physical ability, the muscle load can be increased in line with improvements in blood circulation. In other words, it is possible to provide functional improvement exercises tailored to the user's physical ability.

In one aspect of the present disclosure, the control device (13) may be configured to adjust the amount of strain imposed on the user by setting the duration for which the seat surface angle of the seat (11) is maintained in an intermediate angle range between 40° and 70° during an upward or downward transition. This configuration allows the seat (11) to easily adjust the strain to suit the user's physical ability.

One aspect of the present disclosure may further include a measuring device (12) configured to measure biometric information including at least the user's heart rate. With this configuration, training can be performed while checking the effects of improving blood circulation function.

In one aspect of the present disclosure, the measuring device (12) may include a blood pressure monitor (121) configured to measure the user's blood pressure. The seat (11) may include a support portion (114) configured to change the height of the blood pressure monitor (121) in accordance with changes in the user's posture. This configuration can reduce fluctuations in the difference in elevation between the blood pressure measurement position and the position of the heart when the user's posture changes. As a result, the accuracy of the evaluation of training effects can be improved.

Note that the symbols in parentheses above are examples showing the correspondence with the specific configurations, etc. described in the embodiments described below, and the present disclosure is not limited to the specific configurations, etc. indicated by the symbols in parentheses above.

FIG. 1 is a schematic diagram showing a blood circulation function improving device according to an embodiment. FIG. 2 is a schematic diagram showing the state in which the seat of the blood circulation function improving device of FIG. 1 is in the second position. FIG. 3 is a time chart showing the relationship between the deformation of the seat and the seat surface angle in the blood circulation function evaluation device according to the embodiment. FIG. 4 is a graph showing the relationship between the seat angle and the thigh muscle load. FIG. 5 is a flow chart schematically showing the process executed by the control device in the blood circulatory function improving device of FIG. FIG. 6 is a time chart showing the relationship between the deformation of the seat and the seat angle in the blood circulation function training device according to the embodiment.

Hereinafter, embodiments to which the present disclosure is applied will be described with reference to the drawings.
1. First embodiment
[1-1. Configuration]
The blood circulatory function improving device 1 shown in FIG. 1 is used as a blood circulatory function evaluating device for evaluating the blood circulatory function of a user U.

"Blood circulation function" refers to the function of the autonomic nervous system suppressing and controlling circulatory fluctuations in response to changes in heart height that accompany changes in posture. The blood circulation function improvement device 1 includes a sheet 11, a measuring device 12, and a control device 13.

<Sheet>
The seat 11 is configured to passively change the posture of the user U. Specifically, the seat 11 is deformable between a first position shown in Fig. 1 and a second position shown in Fig. 2 .

1, the user U can sit on the seat 11. That is, when the seat 11 is in the first position, the user U is in a sitting position.
In the first position, the lower back of the user U supported by the seat 11 is at its lowest position. In addition, in the first position, the inclination angle of the seat surface of the seat 11 relative to the horizontal plane (hereinafter also referred to as "seat surface angle A") is 0°.

In the second position of Figure 2, the user U cannot sit on the seat 11. In other words, when the seat 11 is in the second position, the user U is in a standing position. In the second position, the user U's lower back is not supported by the seat 11. In the second position, the user U's lower back is at its highest. Also, in the second position, the seat angle A is 90°.

The seat 11 has a seat cushion 111, a seat back 112, a frame 113, and a support portion 114.

The seat cushion 111 supports the lower back and buttocks of the user U. The seat cushion 111 is attached to the first arm 113B of the frame 113. The first arm 113B allows the position of the seat cushion 111 in the up-down and front-to-back directions (i.e., the horizontal direction), as well as the orientation of the seat surface, to be continuously changed.

The seat back 112 supports the back of the user U. The seat back 112 is attached to the second arm 113C of the frame 113. The position of the seat back 112 in the up-down and front-to-back directions can be continuously changed by the second arm 113C.

The frame 113 is configured to support the seat cushion 111 and the seat back 112 and to change the position and posture of the seat cushion 111 and the seat back 112. The frame 113 has a base 113A, a first arm 113B, and a second arm 113C.

The base 113A holds the first arm 113B and the second arm 113C so that they can move up and down. The first arm 113B and the second arm 113C are operated, for example, by actuators powered by electricity.

The first arm 113B holds the seat cushion 111. The first arm 113B moves up and down relative to the base 113A, thereby changing the height of the seat cushion 111.

The first arm 113B also changes the orientation of the seat surface of the seat cushion 111 by rotating the holding part to which the seat cushion 111 is attached. Furthermore, the first arm 113B moves horizontally relative to the base 113A, thereby changing the front-to-rear position of the seat cushion 111. Therefore, the first arm 113B can push the lower back of the user U resting on the seat cushion 111 upward and forward using the seat cushion 111.

The second arm 113C holds the seat back 112 above the first arm 113B. The second arm 113C moves up and down relative to the base 113A, thereby changing the height of the seat back 112.

Furthermore, the second arm 113C moves horizontally relative to the base 113A, thereby changing the position of the seat back 112 in the front-to-rear direction. Therefore, the second arm 113C can push the back of the user U leaning against the seat back 112 forward using the seat back 112.

The first arm 113B and the second arm 113C operate in synchronization with each other based on commands from the control device 13. Specifically, the first arm 113B and the second arm 113C move simultaneously from a position constituting the first position in Figure 1 to a position constituting the second position in Figure 2 based on commands from the control device 13.

The support unit 114 supports the arm of the user U. The support unit 114 is configured to change the height of the user U's arm (i.e., the height of the blood pressure monitor 121) in accordance with changes in the user U's posture.

The support section 114 has a platform 114A and a connecting member 114B. The platform 114A has a flat upper surface (i.e., a platform surface) that supports the arm of the user U. The connecting member 114B connects the platform 114A to the second arm 113C.

The platform 114A moves vertically and horizontally in synchronization with the vertical and horizontal movements of the second arm 113C. In other words, when the second arm 113C moves forward and upward, the platform 114A also moves forward and upward, and when the second arm 113C moves backward and downward, the platform 114A moves backward and downward. This suppresses fluctuations in the height difference D between the mounting surface of the platform 114A and the heart H of the user U.

<Measuring instrument>
The measuring device 12 is configured to measure biological information of the user U, including at least the heart rate.

The heart rate of the user U is continuously measured, for example, by a heart rate sensor installed on the seat back 112 of the seat 11. In addition to heart rate, the biometric information of the user U measured by the measuring device 12 includes measurements related to circulatory system function, such as blood pressure, respiration, electrocardiogram, pulse, and body temperature.

In this embodiment, the measuring device 12 has a blood pressure monitor 121 that measures the blood pressure of the user U. The blood pressure monitor 121 is worn on the arm or finger of the user U. The blood pressure monitor 121 transmits continuous values of the user U's blood pressure to the control device 13, for example, via wireless or wired communication.

As described above, the support portion 114 of the seat 11 suppresses fluctuations in the height difference D between the user U's arm and heart H when the user changes posture, thereby suppressing disturbances (i.e., changes in blood pressure) associated with fluctuations in the height difference between the blood pressure monitor 121 and the heart H.

<Control equipment>
The control device 13 shown in FIG. 1 is a computer including, for example, a processor, storage media such as RAM and ROM, an input/output unit, and a network communication unit.

The control device 13 is configured to receive measurement results (i.e., output data) of the user U's biometric information from the measuring device 12 using a program stored on a storage medium, and to evaluate the user U's blood circulation function based on these measurement results.

Specifically, the control device 13 evaluates the blood circulation function of the user U based on the measurement results of biological information during both the upward transition T1 of the user U due to the seat 11 and the downward transition T2 of the user U due to the seat 11, as shown in Figure 3.

Upward transition T1 is a movement in which the user U passively changes his/her posture from the first posture to the second posture due to deformation of the seat 11. In the second posture, the positions of the user U's lower back and heart H are higher than in the first posture.

During the upward transition T1, the height of the user U's heart H gradually increases. Also, during the upward transition T1, the seat angle A increases from 0° in the first position toward 90° in the second position.

Downward transition T2 is a movement in which the user U passively changes their posture from the second position to the first position due to deformation of the seat 11. During downward transition T2, the height of the user U's heart H gradually decreases. Also, during downward transition T2, the seat surface angle A of the seat 11 decreases from 90° in the second position toward 0° in the first position.

The control device 13 evaluates the user U's blood circulation function by combining the changes in the heart H height and seat angle A during the ascending transition T1 and the descending transition T2 with changes in biometric information such as heart rate and blood pressure (i.e., continuous data).

For example, the control device 13 evaluates the blood circulation function based on the magnitude or change of the decrease in heart rate and blood pressure during the upward transition T1. For example, the control device 13 evaluates that the smaller the decrease in these amounts, the better the blood circulation function.

Specifically, the control device 13 calculates the heart rate (HR), heart rate variability, and heart rate interval (RRI) from the heart rate information measured by the measuring device 12, and estimates cardiac age, which is an evaluation value of blood circulation function, using a pre-prepared algorithm. In addition to cardiac age, the control device 13 may also estimate cardiac strain, fatigue state, frailty status, etc. in standing and sitting states.

Similarly, the control device 13 evaluates the blood circulation function based on the magnitude or change in the increase in heart rate and blood pressure during the downward transition T2. For example, the control device 13 evaluates that the smaller the increase in these amounts, the better the blood circulation function.

The control device 13 operates the seat 11 during the upward transition T1 and the downward transition T2 so that the user U experiences a burden that is suited to the user's physical ability. Here, "the user's physical ability" is a concept that includes the user's blood circulation function as well as athletic ability such as muscle activity ability.

For example, if user U is a physically able-bodied person, the control device 13 operates the seat 11 in the normal load mode M11 shown in Figure 3. In normal load mode M11, after starting the evaluation, the control device 13 first maintains the user U in a first position P1, in which the seat angle A is 0°, for five minutes. Then, in order to place user U in a second position P2, the control device 13 deforms the seat 11 over two seconds until the seat angle A becomes 60°. This causes the user U to undergo an upward transition T1.

Furthermore, after maintaining the second position P2 for two minutes, the control device 13 deforms the seat 11 over two seconds until the seat angle A becomes 0° in order to return the user U to the first position P1. This causes the user U to undergo a downward transition T2. The control device 13 again maintains the first position P1 for five minutes, after which the evaluation is terminated.

The control device 13 evaluates the blood circulation function of the user U using the biological information from the start to the end of the evaluation. In other words, the control device 13 evaluates the biological information not only during the upward transition T1 and the downward transition T2, but also while the first posture P1 and the second posture P2 are maintained (i.e., while the posture is maintained).

In the second posture P2 of the user U in the normal load mode M11, the seat angle A is 60°, and the user U is in a so-called "sitting-standing" position. This state places the greatest strain on the thigh muscles between the sitting and standing positions.

Specifically, as shown in Figure 4, the load on the thigh muscles increases as the seat angle increases from 0° to 60°, and decreases once the seat angle exceeds 60°. In other words, the load on the thigh muscles reaches its maximum (i.e., peak) when the seat angle is between 40° and 70°.

The control device 13 therefore adjusts the amount of strain imposed on the user U by setting the duration for which the seat 11's seat surface angle A is maintained in the intermediate angle range of 40° to 70° during the upward transition T1 and downward transition T2.

In the example of normal strain mode M11, the maintenance time for the intermediate angle region is set to 2 seconds. This increases the strain imposed on the user U, making it possible to detect changes in biometric information suitable for evaluating the blood circulation function of healthy individuals.

For example, if the user U is an ill person, elderly person, or the like with low physical abilities, the control device 13 operates the seat 11 in the low-stress mode M12 shown in Figure 3. In the low-stress mode M12, after starting the evaluation, the control device 13 first maintains the user U in the first posture P1, in which the seat angle A is 0°, for five minutes.

Then, the control device 13 deforms the seat 11 over two seconds until the seat angle A becomes 40°, in order to place the user U in the third position P3. This causes the user U to make the first upward transition T1. The third position P3 is an intermediate position between the first position P1 and the second position P2. In other words, in the third position P3, the position of the user U's lower back is higher than in the first position P1 and lower than in the second position P2.

After the first upward transition T1, the control device 13 maintains the third position P3 for 30 seconds, and then deforms the seat 11 over 2 seconds until the seat angle A becomes 80° to place the user U in the second position P2. This allows the user U to make the second upward transition T1.

Furthermore, after maintaining the second position P2 for 30 seconds, the control device 13 deforms the seat 11 over 2 seconds until the seat angle A becomes 0° in order to return the user U to the first position P1. This causes the user U to undergo a downward transition T2. The control device 13 again maintains the first position P1 for 5 minutes, after which the evaluation is terminated.

In low-burden mode M12, the posture of user U is not maintained in the intermediate angle region described above. Therefore, in low-burden mode M12, the amount of burden imposed on user U is reduced compared to normal-burden mode M11.

Furthermore, in low-strain mode M12, the amount of strain imposed on user U is reduced by the presence of third posture P3 as a relay point in posture transitions and the fact that the time spent in second posture P2 is reduced compared to normal-strain mode M11. This minimizes or stabilizes muscle activity, thereby improving the accuracy of assessment of blood circulation function.

In addition, in low-burden mode M12, the deformation speed of the seat 11 (i.e., the speed at which the user U's posture changes) may be set slower than in normal-burden mode M11 in order to reduce the burden on the user U.

The control device 13 may suggest an optimal training program for improving the blood circulation function of the user U based on the evaluated blood circulation function of the user U. For example, based on the blood circulation function, it may determine the ratio of training to improve blood circulation function and strength training through muscle strain.

As an initial setting, the control device 13 adjusts the posture of the seat 11 when the user U is in the first posture P1 and the deformation trajectory of the seat 11 during the upward transition to match the height or leg length of the user U.

Specifically, the control device 13 adjusts the height of the seat surface of the seat cushion 111 and the seat back 112 of the seat 11 in the first posture P1 to match the height or leg length of the user U, and adjusts the deformation trajectory of the seat 11 from the first position to the second position.

<Processing of control devices>
An example of the evaluation process executed by the control device 13 will be described below with reference to the flow chart of FIG.

In this process, the control device 13 accepts input for setting the magnitude of the load to be imposed on the user U by the seat 11 (step S110). After the load is set, the control device 13 begins acquiring biometric information while deforming the seat 11 in which the user U is seated in accordance with a seat operation program based on the set load (step S120).

After the seat operation program ends, the control device 13 ends acquisition of biometric information (step S130). The control device 13 then evaluates the user U's blood circulation function based on the acquired biometric information (step S140).

[1-2. Effects]
According to the embodiment described above in detail, the following effects can be obtained.
(1a) Passive posture transitions caused by the movement of the seat 11 can change the height of the heart H while suppressing changes in the muscle strain of the user U. This allows for accurate evaluation of blood circulation function. Furthermore, by using the evaluation results, it is possible to propose appropriate functional improvement exercises that are tailored to the user U's physical abilities, including blood circulation function, regardless of the user U's health condition or age.

(1b) By using the measurement results of biological information during both the ascending transition and the descending transition to evaluate blood circulation function, the accuracy of the evaluation of blood circulation function can be improved.

(1c) By operating the sheet 11 so that a load is imposed on the user U that is suited to the user U's physical ability, it is possible to set a load amount that allows for detectable changes in biometric information in accordance with the user U's blood circulation function, muscle activity ability, etc. As a result, it is possible to improve the accuracy of the evaluation of blood circulation function.

(1d) By adjusting the amount of strain imposed on the user U by setting the duration for which the intermediate angle region is maintained, it is possible to induce changes in the state of biometric information suitable for evaluating the blood circulation function for a user U with sufficient physical ability, while suppressing the induction of physical activity other than that related to the blood circulation function.

(1e) The support unit 114 changes the height of the blood pressure monitor 121 in accordance with changes in the user U's posture, thereby suppressing fluctuations in the difference in elevation between the blood pressure measurement position and the position of the heart when the user U's posture changes. As a result, the accuracy of the evaluation of blood circulation function can be improved.

[2. Second embodiment]
[2-1. Configuration]
The blood circulation function improving device 1 shown in FIG. 1 can also be used as a blood circulation function training device for improving the blood circulation function of a user U.

In the blood circulation function improvement device 1 used as a blood circulation function training device, the control device 13 operates the seat 11 based on a training program so that the user U is subjected to a load that is suited to the user's physical ability. The training program is created, for example, based on the evaluation obtained by the blood circulation function evaluation device of the first embodiment.

When both the user U's muscle strength and cardiac function are extremely low, the control device 13 operates the seat 11 in the first load mode M21 shown in FIG. 6. In the first load mode M21, the control device 13 maintains the user U in a first position P1, in which the seat angle A is 0°, for two minutes after the program starts. Thereafter, the control device 13 deforms the seat 11 over ten seconds until the seat angle A becomes 20°, in order to place the user U in a second position P2. This causes the user U to ascend.

After maintaining the second position P2 for one minute, the control device 13 deforms the seat 11 over 10 seconds until the seat angle A becomes 0° in order to return the user U to the first position P1. This causes the user U to transition downward. The control device 13 operates the seat 11 for a certain period of time or a certain number of times so that the user U repeatedly transitions between the first position P1 and the second position P2.

The first load mode M21 can improve the cardiac function of the user U while reducing the load on the user U's muscles. For a user U whose cardiac function has improved, the control device 13 operates the seat 11 in the second load mode M22.

In the second load mode M22, after the program starts, the control device 13 maintains the user U in the first position P1, where the seat angle A is 0°, for one minute. Then, the control device 13 deforms the seat 11 over five seconds (i.e., a shorter time than in the first load mode M21) until the seat angle A becomes 20°, in order to place the user U in the third position P3.

After maintaining the third position P3 for one minute, the control device 13 deforms the seat 11 over five seconds until the seat angle A becomes 0° to return the user U to the first position P1. Alternatively, after maintaining the third position P3 for one minute, the control device 13 deforms the seat 11 over five seconds until the seat angle A becomes 40° to return the user U to the second position P2. After maintaining the second position P2 for one minute, the control device 13 deforms the seat 11 over five seconds until the seat angle A becomes 20° to return the user U to the third position P3.

In the second burden mode M22, the control device 13 operates the seat 11 for a certain period of time or a certain number of times so that the user U repeatedly transitions between the first position P1 and the third position P3, or between the third position P3 and the second position P2.

The second load mode M22 increases the load on the user U's cardiac function while strengthening the user U's muscles. For a user U whose muscle strength has improved, the control device 13 operates the seat 11 in the third load mode M23.

The third burden mode M23 is the second burden mode M22, except that the seat angle A for placing the user U in the third posture P3 is changed to 40°, and the seat angle A for placing the user U in the second posture P2 is changed to 80°.

The third strain mode M23 can further improve the cardiac function of the user U. For a user U whose cardiac function has been further improved, the control device 13 operates the seat 11 in the fourth strain mode M24.

The fourth load mode M24 is the third load mode M23, except that the seat angle A for placing the user U in the third position P3 is set to 50°, and the transition time for the user U between the first position P1 and the third position P3, and between the third position P3 and the second position P2, are both set to 3 seconds.

In the third load mode M23 and the fourth load mode M24, the third posture P3 is set in the intermediate angle range where the seat angle A is between 40° and 70°. This increases the load on the user U, enhancing the muscle strength improvement effect.

In other words, the control device 13 adjusts the amount of strain imposed on the user U by setting the duration for which the seat surface angle A of the seat 11 is maintained in the intermediate angle range between 40° and 70° during the upward and downward transitions.

In addition, the control device 13 acquires user U's biometric information (e.g., heart rate, blood pressure, etc.) from the measuring device 12 during the upward transition and downward transition, and compares it with stored past biometric information and reference values. Based on the comparison results, user U can confirm the improvement in blood circulation function.

As described above, the support portion 114 of the sheet 11 suppresses fluctuations in the height difference D between the blood pressure monitor 121 of the measuring device 12 and the heart H. Therefore, the effect of suppressing the effects of fluctuations in the height of the heart H during training can be confirmed.

[2-2. Effects]
According to the embodiment described above in detail, the following effects can be obtained.
(2a) Training to improve blood circulation function can be provided to users U with reduced motor function, such as lower limb function. Furthermore, by adjusting the load according to the user's physical ability, muscle load can be increased in line with the improvement of blood circulation function. In other words, functional improvement exercises can be provided that are suited to the user U's physical ability.

(2b) The amount of strain imposed on the user U can be adjusted by setting the duration for which the intermediate angle region is maintained, making it possible for the seat 11 to easily adjust the strain to suit the user's physical abilities.

(2c) By measuring biological information using the measuring device 12, training can be carried out while checking the effects of improving blood circulation function.

(2d) The support unit 114 changes the height of the blood pressure monitor 121 in accordance with changes in the user U's posture, thereby suppressing fluctuations in the difference in elevation between the blood pressure measurement position and the position of the heart when the user U's posture changes. As a result, the accuracy of the evaluation of the training effect can be improved.

3. Other Embodiments
Although the embodiments of the present disclosure have been described above, it goes without saying that the present disclosure is not limited to the above-described embodiments and can take on various forms.

(3a) In the blood circulation function evaluation device of the above embodiment, the control device does not necessarily have to evaluate blood circulation function based on the measurement results of biological information during both the ascending transition and the descending transition. For example, the control device may evaluate blood circulation function based on the measurement results of biological information only during the ascending transition, or only during the descending transition.

(3b) In the blood circulation function evaluation device and blood circulation function training device of the above embodiments, the control device does not necessarily need to adjust the amount of strain on the user by using the intermediate angle range in which the seat angle is between 40° and 70°.

(3c) In the blood circulation function evaluation device and blood circulation function training device of the above embodiments, the seat does not necessarily have to have a support portion that changes the height of the sphygmomanometer in accordance with changes in the user's posture.

(3d) The function of one component in the above embodiments may be distributed among multiple components, or the functions of multiple components may be integrated into one component. Furthermore, part of the configuration of the above embodiments may be omitted. Furthermore, at least part of the configuration of the above embodiments may be added to or substituted for the configuration of another of the above embodiments. All aspects included within the technical concept identified by the wording of the claims are embodiments of the present disclosure.

1...blood circulation function improving device, 11...sheet, 12...measuring instrument, 13...controller,
111...seat cushion, 112...seat back, 113...frame,
113A...base, 113B...first arm, 113C...second arm, 114...support portion,
114A...mounting base, 114B...connecting member, 121...sphygmomanometer.

Claims (14)

a seat configured to passively change the posture of the user between a first posture and a second posture in which the user's lower back is higher than the first posture;
a measuring device configured to measure biological information including at least a heart rate of the user;
a control device configured to evaluate the blood circulation function of the user based on continuous data of changes in the height of the user's heart and the seat surface angle of the seat and changes in the biological information during at least one of an upward transition of the user from the first position to the second position by the seat and a downward transition of the user from the second position to the first position by the seat;
A blood circulation function evaluation device comprising: a seat configured to passively change the posture of the user between a first posture and a second posture in which the user's lower back is higher than the first posture;
a measuring device configured to measure biological information including at least a heart rate of the user;
a control device configured to evaluate a blood circulation function of the user based on measurement results of the biological information during at least one of an upward transition of the user from the first position to the second position by the seat and a downward transition of the user from the second position to the first position by the seat; and
Equipped with
The control device is configured to operate the seat so that the user is subjected to a strain tailored to the user's physical ability by setting a maintenance time for an intermediate angle range in which the seat surface angle of the seat is between 40° and 70° during the upward transition or the downward transition. a seat configured to passively change the posture of the user between a first posture and a second posture in which the user's lower back is higher than the first posture;
a measuring device configured to measure biological information including at least a heart rate of the user;
a control device configured to evaluate a blood circulation function of the user based on measurement results of the biological information during at least one of an upward transition of the user from the first position to the second position by the seat and a downward transition of the user from the second position to the first position by the seat; and
Equipped with
the measuring device includes a blood pressure monitor configured to measure the user's blood pressure;
The sheet has a support portion configured to change the height of the blood pressure monitor in accordance with changes in the user's posture . The blood circulation function evaluation device according to any one of claims 1 to 3 ,
The control device is configured to evaluate the user's blood circulation function based on the measurement results of the biological information during both the ascending transition and the descending transition. The blood circulation function evaluation device according to any one of claims 1 to 4 ,
The control device is configured to operate the seat so that a burden is imposed on the user during the upward transition or the downward transition, the burden being in line with the user's physical ability. The blood circulation function evaluation device according to claim 5 ,
The control device is configured to adjust the amount of strain placed on the user by setting the maintenance time for an intermediate angle range in which the seat surface angle of the seat is between 40° and 70° during the upward transition or the downward transition. The blood circulation function evaluation device according to claim 1 ,
the measuring device includes a blood pressure monitor configured to measure the user's blood pressure;
The sheet has a support portion configured to change the height of the blood pressure monitor in accordance with changes in the user's posture. The blood circulation function evaluation device according to any one of claims 1 to 7 ,
The control device is configured to adjust the posture of the seat when the user is in the first posture and the deformation trajectory of the seat during the upward transition to match the user's height or leg length. a seat configured to passively change the posture of the user between a first posture and a second posture in which the user's lower back is higher than the first posture;
a measuring device configured to measure biological information including at least a heart rate of the user;
a control device configured to operate the seat so that a load suited to the physical ability of the user is applied to the user based on continuous data of changes in the height of the user's heart and the seat surface angle of the seat and changes in the biological information when the seat causes the user to ascend from the first position to the second position or when the seat causes the user to descend from the second position to the first position;
A blood circulation function training device comprising: a seat configured to passively change the posture of the user between a first posture and a second posture in which the user's lower back is higher than the first posture;
a control device configured to operate the seat so that a strain suited to the physical ability of the user is generated on the user when the seat causes the user to ascend from the first position to the second position or when the seat causes the user to descend from the second position to the first position; and
Equipped with
The control device is configured to adjust the amount of strain imposed on the user by setting the duration for which the seat angle of the seat is maintained in an intermediate angle range of 40° or more and 70° or less during the upward transition or the downward transition . a seat configured to passively change the posture of the user between a first posture and a second posture in which the user's lower back is higher than the first posture;
a control device configured to operate the seat so that a strain suited to the physical ability of the user is generated on the user when the seat causes the user to ascend from the first position to the second position or when the seat causes the user to descend from the second position to the first position; and
a measuring device configured to measure biological information including at least a heart rate of the user;
Equipped with
the measuring device includes a blood pressure monitor configured to measure the user's blood pressure;
The seat has a support portion configured to change the height of the blood pressure monitor in accordance with changes in the user's posture . 12. The blood circulation function training device according to claim 9 ,
The control device is configured to adjust the amount of strain imposed on the user by setting the duration for which the seat angle of the seat is maintained in an intermediate angle range of 40° or more and 70° or less during the upward transition or the downward transition. The blood circulation function training device according to claim 9 or 10 ,
The blood circulation function training apparatus further comprises a measuring device configured to measure biological information including at least a heart rate of the user. 14. The blood circulation function training device according to claim 13 ,
the measuring device includes a blood pressure monitor configured to measure the user's blood pressure;
The seat has a support portion configured to change the height of the blood pressure monitor in accordance with changes in the user's posture.