Patent Application
20230173336
The present application claims priority to Korean Patent Application No. 10-2021-0174050, Dec. 7, 2021, the entire contents of which is incorporated herein for all purposes by this reference.
The present disclosure relates to an exercise platform for rehabilitation management and, more particularly, to an exercise platform for rehabilitation management that estimates maximal oxygen uptake (VO2max) through a sensor being able to acquire condition data of a user and that adjusts exercise intensity of the user in accordance with the estimated maximal oxygen uptake (VO2max).
Cardiac diseases are diseases that continue for a long period of time and have a high possibility of not improving. Even though patients undergo various surgical procedures or surgeries such as percutaneous transluminal coronary angioplasty to treat these diseases, they also have to undergo cardiovascular rehabilitation or cardiac rehabilitation for a considerably long period of time because the surgical procedures or surgeries do not recover the heart function into the normal state within a short period of time.
That is, cardiovascular/cardiac rehabilitation is a process of recovering, increasing, and maintaining the physical, metal, socioeconomic, and job-related levels of patients with cardiac diseases up to appropriate levels and is individually applied to fit to the characteristics of individuals through programs that suppress and prevent progress of cardiac diseases.
Such a cardiovascular/cardiac rehabilitation program is usually divided into four stages, that is, an acute stage in which a patient is in the hospital after myocardial infarction occurred, a recovery stage that is the period of 4˜6 weeks accompanied with scars at the myocardial infarction part after the attack, a training stage in which cardiac rehabilitation is actually performed through exercise, and a maintaining stage for maintaining the effect of the training stage after guidelines for exercise or work are made through an exercise stress test at the end of the training stage.
However, since all cardiac rehabilitation training is performed at present in the hospital under prescriptions of doctors, the patients' intention of performing rehabilitation training is actually not high, so the need for online medical treatment/medical examination/patient monitoring services for such cardiac rehabilitation training is increasing.
The present disclosure has been made in an effort to solve the general problems described above and an objective of the present disclosure is to provide an exercise platform for managing rehabilitation patients, that is, an exercise platform that determines and feeds back prescriptions, which are formulated, quantified, and improved to be suitable for users on the basis of maximal oxygen uptake (VO2max), in real time to the users.
Another objective of the present disclosure is to provide an exercise platform for rehabilitation management that estimates maximal oxygen uptake using various data that are obtained through a user sensor unit, which is configured in various wearable types such as a band, a watch, and a helmet to be able to be easily applied even to cardiac rehabilitation patients who have difficulty in using devices for measuring maximal oxygen uptake.
In order to achieve the objectives described above, an exercise platform for rehabilitation management of the present disclosure includes: an exercise apparatus including a drum, pedals connected to the drum and having a wireless pedaling sensor therein, a seat disposed on the drum, and handles connected to a side of the drum; a controller disposed on the handles and configured to operate characters of contents that operate in cooperation with the exercise apparatus; a communication unit connected to the exercise apparatus in a wireless or wired type; a server connected to the communication unit and configured to receive data of the exercise apparatus and generate an exercise apparatus control signal; a processor installed in the exercise apparatus and configured to acquire a sensor value from the wireless pedaling sensor, select a character from a rehabilitation content, and control the selected character on the basis of the sensor value acquired from the wireless pedaling sensor; a display disposed between the handles and configured to display an image of the rehabilitation content in cooperation with the processor; and a mobile device configured to receive an image displayed on the display and data of the exercise apparatus in cooperation with the display and the exercise apparatus.
The exercise platform further includes a heartbeat measurer disposed on the handles and configured to measure heartbeat of a user.
The exercise platform may further include a user sensor unit being able to acquire condition data of a user.
The server may include a VO2max estimator configured to estimate VO2max using heartbeat data of a user, which are measured by the heartbeat measurer, and condition data of the user, which are acquired from the user sensor unit when the platform further includes the user sensor unit, in cooperation with the heartbeat measurer.
The server may further include an exercise intensity proposer configured to propose exercise intensity to a user.
An exercise intensity adjuster configured to adjust intensity of exercise by adjusting rotation intensity of the pedals may be included in the drum of the exercise apparatus.
The display may include a control unit configured to change colors that are shown on the display to show exercise intensity of a user.
The processor may estimate torque according to the number of revolutions of the pedals using load values in stages, which are measured by an exercise intensity measurer, and linear regression analysis.
The exercise intensity proposer may measure a heart rate of a user before exercising using the heartbeat measurer, estimate VO2max from the heart rate before exercising, determines a physical grade on the basis of the estimated VO2max, measure a heart rate of the user during exercising, determine whether the measured heart rate during exercising is out of a reference heart rate range of the determined physical grade, and inform the user that the heart rate during exercising is out of the reference heart rate range, if so, through the display or generating an alarm sound, thereby proposing exercise intensity to the user.
According to the exercise platform for rehabilitation management of the present disclosure, maximal oxygen uptake that is an index that makes it possible to accurately find out a real-time health condition of a user is estimated and exercise intensity of the user is adjusted in accordance with the estimated maximal oxygen uptake, whereby there is an effect that rehabilitation is effectively achieved.
Further, maximal oxygen uptake is estimated using a sensor, the exercise platform can be easily applied even to cardiac rehabilitation patients who have difficulty in using devices.
The above and other objectives, features and other advantages of the present invention will be more clearly understood from the following detailed description when taken in conjunction with the accompanying drawings, in which:
The features and advantages of the present disclosure described above will be clearer through the following detailed description relating to the accompanying drawing, so the spirit of the present disclosure would be easily implemented by those skilled in the art. The present disclosure may be modified in various ways and implemented by various exemplary embodiments, so that specific exemplary embodiments are shown in the drawings and will be described in detail herein. However, it is to be understood that the present invention is not limited to the specific exemplary embodiments, but includes all modifications, equivalents, and substitutions included in the spirit and the scope of the present disclosure. Terms used in the present specification are used only in order to describe specific exemplary embodiments rather than limiting the present disclosure.
Hereinafter, exemplary embodiments of the present disclosure are described in detail with reference to the accompanying drawings.
As shown in
As shown in
The drum 110 may further include an exercise intensity adjuster that operates in cooperation with the processor and the display through wired/wireless communication, adjusts pedal rotation intensity, which will be described below, using the magnetism of a magnet, and displays the rotation intensity.
The pedals 120 are components having a wired pedaling sensor therein.
The pedals are disposed at the left and right sides of the exercise apparatus, respectively, and a sensor value obtained from a depression force by the wired pedaling sensor in accordance with movement of the pedals is input to the processor through wired/wireless communication.
The seat 130 is a component for a user to sit and stably perform home cycling thereon and the height thereof can be easily adjusted to fit to the body shape of a user through an overlap type of frame.
The handles 140 are components for a user to hold the handles and stably perform home cycling in a stable posture by applying a depression force and the height thereof can be easily adjusted to fit to the body shape of a user through an overlap type of frame.
The exercise apparatus 100 may further include a heartbeat measurer disposed on a side of the handles and measuring the heartbeat of a user.
Since the heartbeat measurer 150 is disposed on a side of the handles, when a user holds the handles to enjoy game contents, the user naturally holds the heartbeat measurer.
That is, when a user depresses the pedals, the heart rate of the user is naturally measured through a heart rate monitoring sensor being in contact with a palm of the user holding the handles.
The heartbeat measurer may operate in cooperation with the processor and the display through wired/wireless communication, so the heart rate of a user obtained by the heartbeat measurer can be displayed in real time on the display, the processor can propose difficulty of a game content that is suitable for the heart rate of the user on the basis of the heart rate obtained by the heartbeat measurer, and the user can select the proposed difficulty of the game content that is suitable for the heart rate and perform home cycling.
The heart rate monitoring sensor may be at least one of an optical sensor, an electrocardiogram (ECG) sensor, and a photoplethysmography (PPG) sensor.
When the heart rate monitoring sensor is an optical sensor, the heart rate monitoring sensor may be composed of a light emitter and a light receiver.
The light emitter may be at least any one of an IR (infrared) LED, a Red LED, a Green LED, and a Blue LED and the light receiver may be a photodiode. When a user holds the heartbeat measurer with a palm thereon, the light emitter of the heart rate monitoring sensor can emit light to the user's palm and the light receiver can detect the light reflected back to the user's palm after emitted from the light emitter.
For example, the light may travel deeper than the skin of a user (for example, to a blood vessel) and then reflect out to determine variation in blood stream of the user. The heart rate monitoring sensor can generate a signal by digitizing and sequentially arranging the amounts of light detected by the light receiver. The heart rate monitoring sensor can transmit the generated signal to the processor or the display.
A PPG sensor may use the principle that the degrees of absorption and reflection of light depend on variation of the thickness of a blood vessel that depends on heartbeat.
When the heart rate monitoring sensor is a PPG sensor, the heart rate monitoring sensor may be composed of a light emitter that emits infrared light and a light receiver that senses light that is reflected after emitted to a user's palm from the light emitter. The heart rate monitoring sensor can detect a Photoplethysmography (PPG) signal from variation a blood flow rate over time that is detected by the light receiver.
The processor 500 can be controlled to adjust the rotation intensity of the exercise intensity adjuster, that is, to automatically adjust the magnitude of the magnetism of the magnet, thereby being able to automatically adjust the rotation intensity of the pedals.
That is, the heart rate monitoring sensor can intuitionally show a heartbeat condition to a user by measuring a heart rate by scanning a frequency corresponding to the heartbeat from a generated signal.
The drum of the exercise apparatus may include the exercise intensity adjuster that adjusts the intensity of exercise by adjusting the rotation intensity of the pedal. The exercise intensity adjuster 160 can be controlled to manually or automatically adjust the rotation intensity of the pedals connected with a wheel disposed in the drum, that is, the magnetism of the magnet, thereby being able to adjust the exercise intensity (power, Watt) for each load (e.g., a load in each of 1 to 10 stages) of the pedals.
The exercise intensity adjuster may further include an exercise intensity measurer that measures variation of exercise intensity.
The exercise intensity measurer 170 operates in cooperation with the processor and can, in real time, measure exercise intensity by exercise intensity adjustment and display the exercise intensity through the display or the mobile device.
The controller 200 is disposed on the handles and is configured to operate characters of contents that operate in cooperation with the exercise apparatus.
The controller is a component that is disposed on the handles and operates characters in cooperation with the processor.
The controller includes a joystick disposed on a first handle to control the direction of characters and an operation button disposed on a second handle to operate motions of characters.
The joystick can employ any one of an analog type or a digital type and it is possible to control the movement direction of characters through the joystick.
Meanwhile, the communication unit 300 is connected to the exercise apparatus in a wireless or wired type.
The communication unit may include one or more communication modules that can use a wireless communication network and may include a wireless communication or near field communication module or a position information module.
For example, the wireless communication module is a module for wireless internet connection and a wireless internet module may be installed inside or outside the exercise apparatus.
The wireless communication may include cellular communication using at least one of LTE, LTE-A (LTE Advance), Code Division Multiple Access (CDMA), Wideband CDMA (WCDMA), Universal Mobile Telecommunications System (UMTS), Wireless Broadband (WiBro), or Global System for Mobile Communications (GSM).
Further, the wireless communication may include at least one of Wireless Fidelity (WiFi), Bluetooth, Bluetooth Low Energy (BLE), Zigbee, Near Field Communication (NFC), magnetic secure transmission, Radio Frequency (RF), or Body Area Network (BAN).
Further, the wireless communication may include GNSS. GNSS, for example, may be a global positioning system (GPS), a global navigation satellite system (Glonass), a Beidou navigation satellite system (hereafter, referred to as “Beidou”), or a Galileo, the European global satellite-based navigation system.
The wire communication, for example, may include at least one of a Universal Serial Bus (USB), a High Definition Multimedia Interface (HDMI), an RS-232 (Recommended Standard-232), power line communication, or a Plain Old Telephone Service (POTS).
Encoding that is suitable for wired/wireless communication can be used to secure data communication when data are transmitted to the display or the mobile device from the processor through the communication unit in a wired/wireless type or data acquired by the heartbeat measurer, the exercise intensity adjuster, and the exercise intensity measurer are transmitted to the display or the mobile device through the communication unit in a wired/wireless type,
Meanwhile, the server 400 is connected to the communication unit, receives data from the exercise apparatus, and generates an exercise control signal.
The server may further include a VO2max estimator that estimates VO2max using heartbeat data of a user, which are measured by the heartbeat measurer, and condition data of the user, which are acquired from a user sensor unit when the platform further includes the user sensor unit, in cooperation with the heartbeat measurer.
The VO2max estimator 410 detects estimated VO2max by measuring the time (T) that it takes to reach 85% of a maximum heart rate (HR max) from a heart rate (HR Rest) in a rest state.
In order to measure the heart rate in a rest state, the heart rate for the first 1 minute in a rest state with a user wearing a user terminal is measured.
After the rest state, the heart rate when the user exercises using Balke protocol is measured, and then when the heart rate reaches 85% of the value obtained by subtracting the age of the user from the maximum heart rate, the user stops exercising and the elapsed time (T) is measured.
On the basis of the elapsed time (T) measured through this configuration, the VO2max estimator 410 can acquire the elapsed time (T: min) and estimate VO2max through the following Equation 1 based on sex.
When the platform further includes the user sensor unit, it is possible to calculate a correction coefficient α on the basis of the condition data of a user acquired through the user sensor unit 800 and use the correction coefficient α to estimate VO2max. In more detail, when calculating the correction coefficient α, it is possible to define a correction coefficient α as a value larger than 0 and smaller than 1 by acquiring cardiac sound of a user as a condition datum through the user sensor unit 800, additionally analyzing the condition datum, and applying whether the cardiac sound repeats in a cycle larger than or smaller than a specific reference. When the user sensor unit is not included, it is possible to define the correction coefficient α as 1.
VO2 max of male=2.94×T×α+8.33 [Equation 1]
VO2max of female=2.74×T×α+8.05
In general, mask type measurement devices were used to measure VO2max, but when such measurement devices are applied to rehabilitation patients, the measurement devices interfered with breathing of the rehabilitation patients, so not only it was difficult to apply the measurement devices to rehabilitation patients, but it was difficult to easily use the measurement devices because most of the measurement devices are expensive.
Accordingly, in an embodiment of the present disclosure, it is possible to measure a heart rate and time through the VO2max and estimate VO2max using measured values, whereby it is possible to easily estimate VO2max of rehabilitation patients.
The server may further include an exercise intensity proposer that proposes exercise intensity to a user.
The exercise intensity proposer 420 measures the heart rate of a user before exercising using the heartbeat measurer, estimates VO2max from the heart rate before exercising, determines a physical grade on the basis of the estimated VO2max, measures the heart rate of the user during exercising, determines whether the measured heart rate during exercising is out of a reference heart rate range of the determined physical grade, and, when the heart rate during exercising is out of the reference heart rate range, informs the user of the fact through a display or by generating an alarm sound, thereby being able to propose exercise intensity to the user.
The exercise intensity proposer measures the heart rate of a user before exercising using the heartbeat measurer, estimates VO2max from the heart rate before exercising, determines a physical grade on the basis of the estimated VO2max, measures the heart rate of the user during exercising, determines whether the measured heart rate during exercising is out of a reference heart rate range of the determined physical grade, and when the heart rate during exercising is out of the reference heart rate range, informs the user of the fact through a display or by generating an alarm sound, thereby proposing exercise intensity to the user.
The determining step of the exercise intensity proposer includes the following detailed steps.
As shown in
In the determining step, when the heart rate measured in a second heartbeat measurement step is out of a heart rate range of a user, an informing step of informing the user of the fact through the display or the mobile device can be performed.
Even after the alarming step, when the exercise progresses at the same speed as that before the alarming step or the heart rate does not enter an appropriate heart rate range of the user, an ending step that stops the exercise of the user is entered.
A rehabilitation patient is enabled to exercise with appropriate intensity through the configuration described above, whereby it is possible to increase efficiency of exercise and prevent a safety accident, etc. due to excessive exercise.
Meanwhile, the processor 500 is installed in the exercise apparatus, acquires a sensor value from the wireless pedaling sensor, selects a character from a rehabilitation content, and operates the selected character on the basis of the sensor value acquired from the wireless pedaling sensor.
The processor is a component that is installed in the exercise apparatus, acquires a sensor value from the wireless pedaling sensor, selects a character from a game content, and operates the selected character on the basis of the sensor value acquired from the wireless pedaling sensor.
The processor may include one or more of a Central Processing Unit (CPU), an Application Processor (AP), or a Communication Processor (CP).
The processor can estimate torque according to the number of revolutions of the pedals using load values in the stages, which are measured by the exercise intensity measurer, and linear regression analysis.
The method of estimating torque according to the number of revolutions of the pedals described above can measure reference torque through a power meter, which is separately provided, calculate a fitting function for inputting the number of revolutions through linear regression analysis, and then estimate torque corresponding to exercise intensity (the stages of pedaling) set by a user.
Accordingly, it is possible to estimate the physical ability of a user by estimating torque corresponding to exercise intensity (the stages of pedaling) even though the user does not purchase an expensive power meter, and simultaneously display the physical ability of the user through the display. Further, the processor recommends game contents suitable for the physical ability of the user, whereby the user can select game contents in accordance with his/her physical ability.
The processor can perform calculating or data processing in connection with control and communication of at least one other component of the exercise apparatus.
Meanwhile, the display 6000 is disposed between handles and displays images of the rehabilitation contents in cooperation with the processor.
The display is a component disposed between the handles, that is, between the first handle and the second handle and displaying images of game contents in cooperation with the processor.
The display may display images (texts, images, videos, icons, symbols, etc.) of game contents in cooperation with the processor, or may operate with the processor through wired/wireless communication and display images of game contents through a mobile device of a user.
The display may include a Liquid Crystal Display (LCD), a Light Emitting Diode (LED) display, an Organic Light Emitting Diode (OLED) display, or a Micro Electronic Mechanical System (MEMS) display, or an electronic paper display.
The display may include a touch screen and, for example, can receive touching, gesturing, approaching, or hovering input by an electronic pen or a part of the body of a user.
The display may include a control unit that changes colors that are shown on the display to exercise intensity of a user.
The control unit 610 changes colors that are shown on the display in accordance with the current exercise intensity.
There may be a plurality of exercise programs classified into a plurality of exercise intensity ranges to have different items of exercise intensity, and a plurality of different colors corresponding to the plurality of exercise programs, respectively, may be set in advance.
In this case, the control unit can determine an exercise program including current exercise intensity of a user of the plurality of exercise programs and can control the display to show a color corresponding to the determined exercise program.
For example, when current exercise intensity of a user is in the range of 20˜30%, “white” that is the color showing that the user is exercising in an “elementary mode” having the lowest exercise intensity can be shown.
When current exercise intensity of a user is in the range of 30˜40%, “green” that is the color showing that the user is exercising in a “middle mode” can be shown, and when current exercise intensity of a user is in the range of “40˜60%, “blue” that is the color showing that the user is exercising in an “advanced mode” can be shown.
Further, when current exercise intensity of a user is in the range of 60˜80%, “red” that is the color showing that the user is exercising in a “highest mode” having the highest exercise intensity can be shown.
As described above, a color corresponding to current exercise intensity of a user is shown through the display, the user can easily visually check the current exercise intensity.
The mobile device 700 receives an image displayed on the display and data of the exercise apparatus in cooperation with the display and the exercise apparatus, and the user sensor unit 800 is configured to be able to acquire condition data of a user.
In more detail, the user sensor unit 800 may be implemented in various types, that is, as an embodiment, may be implemented in various types of wearable device such as a band, a watch, a helmet, a belt, etc., and as another embodiment, may be implemented a type of patch that is attached to the skin. As for the condition data of a user, not only a heartbeat, but very various data such as heart sound and body temperature may be additionally acquired.
The configuration and operation of a high-frequency wireless communication system according to the present disclosure was described above and exemplary embodiments of the present disclosure were described above, but it should be understood that the present disclosure may be changed and modified in various ways by those skilled in the art without departing from the spirit and scope of the present disclosure described in the following claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 10-2021-0174050 | Dec 2021 | KR | national |
