TWI830535B - Devices for adjusting exercise postures and methods thereof - Google Patents

Abstract

The present disclosure is related to a device for adjusting exercise postures, including a master sensor for generating a master exercise data based on a first movement, and a slave sensor, a slave sensor for generating a slave exercise data based on a second movement, and an computing unit for accessing the master exercise data and the slave exercise data and based on thereof, determining a duration of the exercise posture maintained in the movement. The computing unit is configured to determine whether the duration is up to a duration threshold and response a displacement track of the exercise posture related to a testing part which the slave sensor located and a reference part which the master sensor located in the duration. Furthermore, a method for adjusting exercise postures is provided in the present disclosure.

Description

Device for correcting sports posture and method thereof

The present invention relates to the technical field of sensing the relative position between a part to be measured and a reference part and its displacement trajectory, and in particular, a device for correcting movement posture and a method thereof.

So far, many sports have used sensing devices to evaluate the user's exercise performance. For example, cycling has bicycle power pedals, and running has dynamic sensors on the feet. However, applications in water sports such as swimming, paddling, and water ballet are still quite rare. This is due to the fact that in addition to the waterproof function of the sensing device, how to design a suitable wearing position and how to measure the user's movement data well , and how to quantify exercise data so that users can monitor their exercise status at any time, are all technical problems that still need to be overcome.

Therefore, how to develop a device and method for correcting motion posture that can accurately sense the user's position and evaluate the user's motion posture has become a very important issue.

The object of the present invention is to provide a device for correcting movement postures, which includes: a master-side sensor for generating master-side movement data for a first action posture; and a slave-side sensor for generating slave-side movement data for a second action posture. terminal motion data; and a computing unit, used to obtain the master terminal motion data and the slave terminal motion data, and judge based on them a duration for which the action postures maintain a movement posture; wherein, determine whether the duration is reached A continuous threshold value; the motion posture within the duration is reflected in the displacement trajectory between the part to be measured on the slave sensor and the reference part on the master sensor.

Optionally, the computing unit uses at least one of the master sensor and the slave sensor to calculate the displacement component and/or rotation component of the x-axis, y-axis, and z-axis in the complex motion data. Determine the movement posture, which is a plurality of swimming postures, such as backstroke, freestyle, breaststroke or butterfly stroke.

Optionally, the part to be measured and the reference part are the human body's head, hands, waist, legs, feet or combinations thereof, and the slave sensor and the master sensor correspond to It is a wireless earphone, patch, ring, paddling board, glove, swimming fin or combination thereof. That is to say, the first action posture can be the movements of turning the head, raising the head and lowering the head, while the second action posture can be the movements of turning, swiping down, lifting, bending, holding and holding water of the hands and feet. At least one of them.

Optionally, the displacement trajectory is composed of acceleration, angular velocity, angular acceleration, magnetism, image data or a combination thereof corresponding to the motion data, so that the computing unit can perform a posture evaluation operation to generate a posture evaluation result.

Optionally, the motion posture correction device further includes a master wearable device having the master sensor and a slave wearable device having the slave sensor, and the master wearable device and the slave wearable device At least one of them outputs a prompt signal based on the posture assessment result; wherein the prompt signal is a sound signal, a vibration signal or an optical signal.

Optionally, the computing unit is a central processing unit, a microprocessor, a digital signal processor or a controller.

Optionally, the master sensor and the slave sensor are accelerometers, gravity sensors, gyroscopes, magnetometers, inertial sensors, laser sensors, infrared sensors, Image sensor or combination thereof.

Another object of the present invention is to provide a method for correcting a movement posture, which includes: applying any one of the foregoing devices for correcting a movement posture, performing a posture assessment operation based on the displacement trajectory of the movement posture, and generating a posture assessment result; and responding When determining whether the posture evaluation result reaches the correct reference section of the exercise posture, the computing unit outputs a prompt signal to notify at least one of the master wearable device, the slave wearable device and the mobile device to provide the user with a real-time Training suggestions.

Optionally, at least one of the prompt signal and the training suggestion is output and stored in the mobile device during the duration; wherein the prompt signal reflects the part to be measured and the reference part according to the displacement trajectory. At least one of the water entry angle, water pushing acceleration and body axis balance.

The present invention can further provide a method for correcting movement postures for detecting multiple movement data of movement postures to perform posture assessment operations, including: arranging multiple wearable devices on multiple limb ends of the user, each of which The wearable devices each have a sensor; one of the sensors is used to detect the motion data, and the computing unit interprets the motion posture; according to the motion posture, the sensing device is used to detect the motion data. The device records the movement data relative to the movement posture; performs the posture evaluation operation based on the movement data and generates a posture evaluation result; and reports the posture evaluation result to the user's user device or the user device. One of the wearable devices mentioned above.

To sum up, the device and method for correcting exercise posture of the present invention can use two or more wearable devices to sense changes in the relative position of the user's body during movement for determination and analysis, and after analysis, it can be used by wearing The device may provide users with relevant training suggestions in real time through a related mobile device application.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making any progressive contributions fall within the scope of protection of the present invention.

In view of the above problems, embodiments of the present invention provide a device for correcting motion postures, including: a master sensor for generating master motion data for the first motion posture; and a slave sensor for correcting the second motion posture. Two action postures generate slave end motion data; and a computing unit is used to obtain the master end motion data and the slave end motion data, and determine whether the duration of the action posture in a certain movement posture reaches Continuous threshold (for example: it lasts for 30 seconds, 60 seconds or more than 2 minutes before it is judged that it is in the exercise posture). Furthermore, the motion posture reflected within the duration is related to the displacement trajectory between the part to be measured of the slave sensor and the reference part of the master sensor.

Wherein, the computing unit is a central processing unit (CPU), a digital signal processor (DSP), a microprocessor (MPU), or a microcontroller (MCU), and the invention is not limited thereto. And it determines the usage based on the displacement component and/or rotation component of at least one of the master sensor and the slave sensor through the x-axis, y-axis and z-axis in the motion data. the person’s movement posture. Moreover, the sports postures may be various water postures (swimming, paddling, water ballet, etc.), running postures, or other sports postures (such as skiing, skateboarding, skating, rock climbing, golf, yoga, etc.).

Next, in some embodiments, the part to be measured and the reference part are the head, hands, waist, legs, feet or combinations thereof of the human body. And the master sensor and the slave sensor correspond to wireless earphones, patches, rings, rowing boards, gloves, swimming fins or combinations thereof. For example, it can be a combination of head and hands, and the corresponding sensors used are bone conduction headphones and hand pads; or it can be a combination of waist and feet, and the corresponding sensors used are waist patches or waist belts. With swimming fins.

Furthermore, the displacement trajectory is the corresponding acceleration, angular velocity, angular acceleration, magnetism, image data or a combination thereof of the plurality of motion data to perform posture assessment operations and generate posture assessment results.

Furthermore, the exercise posture correction device of the present invention further includes: a master wearable device having the master sensor and a slave wearable device having the slave sensor. At least one of the master wearable device and the slave wearable device will output a prompt signal in response to the posture assessment result. The prompt signal is a sound signal, a vibration signal or an optical signal, but the invention is not limited thereto. For example, a voice command can be transmitted to a wireless headset to notify the user that the force of pushing the water with the right hand must be adjusted; or the left swimming fin can be vibrated to remind the user that the kicking angle of the left foot is incorrect; or a bone conduction headset can emit different wavelengths Light to remind the user of incorrect body axis deviation, incorrect water holding posture or incorrect water pushing posture.

Next, please refer to the first embodiment in conjunction with Figures 1, 2 and 3 to have a clearer understanding of the implementation of the device for correcting motion posture of the present invention.

In this embodiment, the motion posture correction device 10 includes: a master wearable device 100a, which includes: a master communication unit 110a, a master sensor 120a, a computing unit 130a, and an output unit 140a; and a slave wearable device 100a. The device 100b includes: a slave communication unit 110b and a slave sensor 120b. Among them, the master communication unit 110a and the slave communication unit 110b are preferably master and slave Bluetooth communication units.

Next, the master sensor 120a has a gyroscope 122a, an accelerometer 124a and a magnetometer 126a; the slave sensor 120b has a gyroscope 122b, an accelerometer 124b and a magnetometer 126b. Moreover, in addition, the gyroscope 122a, accelerometer 124a, and magnetometer 126a in the master sensor 120a are connected to the computing unit 130a, and the computing unit 130a is connected to the output unit 140a; and the slave communication unit The 110b signal is connected to the main control terminal unit 110a. The gyroscope 122b, accelerometer 124b, and magnetometer 126b in the slave sensor 120b are signally connected to the slave communication unit 110b.

However, the present invention is not limited thereto. In other embodiments, the master sensor 120a and the slave sensor 120b may be an accelerometer, a gravity sensor, a gyroscope, a magnetometer, or an inertial sensor. sensor, laser sensor, infrared sensor, image sensor or a combination thereof.

In addition, according to some embodiments of the present invention, the configuration of the motion posture correcting device 10 may be, for example, but not limited to: having one master wearable device 100a and one slave wearable device 100b; or, having one master wearable device 100b. The control end wearable device 100a and at least two slave end wearable devices 100b.

It is worth noting that in the conventional technology, a wearable device with a sensor is usually installed on the user's wrist or ankle (such as a smart watch or a smart anklet). As a device, it can only determine the displacement, rotation and acceleration of a single limb, but cannot determine whether the posture is correct or not.

In a preferred embodiment of the present invention, one master wearable device 100a is disposed on the user's head, and at least two slave wearable devices 100b are respectively disposed on the ends of both limbs of the user, especially on the palms of the hands. Or on the soles of the feet to detect more subtle changes in movements. In this way, the master wearable device 100a can be used as a reference point to determine the user's movement posture, and the slave wearable device 100b can further be used to simultaneously sense the movements of both sides of the body to analyze the user's body balance. and evaluate the correctness of sports postures, making the measurement and analysis of sports data more comprehensive and accurate.

Next, please refer to Figure 4 to understand the method of determining movement postures in the present invention. In this embodiment, the description is based on determining the swimming posture, and the head is equipped with the master wearable device 100a, and the two palms are respectively equipped with the slave wearable device 100b. First, the swimming posture is determined mainly through the host sensor 120a detecting the displacement components of the x-axis, y-axis and z-axis and/or the motion data measured by the user during a period of exercise. The rotation component is then determined by the computing unit 130a.

In step S402 of FIG. 4, when the host sensor 120a detects that the displacement component of the z-axis of the motion data is less than 0, it indicates that the user is in a face-up posture. At this time, step S404 is continued. The calculation unit 130a determines that the exercise posture is the back posture (the first swimming posture).

However, if the host sensor 120a in the host wearable device 100a detects that the displacement component of the z-axis of the motion data is greater than 0, it means that the user may be in freestyle, frog pose or butterfly pose. Step S406 will then be followed to make further judgment.

In step S406, when the rotation component of the x-axis relative to the y-axis is greater than the rotation amount threshold (for example: ≥60 degrees), it means that the user uses the rotation of the head to ventilate while swimming, then step S408 is continued. , the computing unit 130a determines that the movement posture is free style (second swimming posture). On the contrary, when the rotation component of the x-axis relative to the y-axis is less than the rotation amount threshold, step S410A or 410B is followed to make further judgment.

In step S410A of Figure 4, when the host sensor 120a further detects that the x-axis displacement component of the motion data is smaller than the z-axis displacement component, then step S412A is continued, and the computing unit 130a determines that the motion posture is frog. (the third swimming posture).

In step S410B of Figure 4, when the host sensor 120a further detects that the x-axis displacement component of the motion data is greater than the z-axis displacement component, then step S412B continues, and the computing unit 130a determines that the motion posture is butterfly. (Fourth swimming posture).

It is worth noting that because breaststroke and butterfly both use the head to breathe, unlike freestyle, which mainly relies on head rotation, it is more difficult to determine the swimming style between breaststroke and butterfly. In general, the difference between the advancement amplitude of the frog style and the butterfly style (related to the displacement component of the x-axis) is that the displacement amount when the frog style advances will be smaller than the displacement amount when the frog style advances; The difference in ventilation amplitude (related to the displacement component of the z-axis) is that the amplitude during frog ventilation will be greater than that during butterfly ventilation. Therefore, the relative relationship between the displacement components of the x-axis and the z-axis is used to determine breaststroke and butterfly pose.

Since the movement posture correction device of the present invention needs to first interpret the user's movement posture, it can detect the corresponding movement data based on the interpreted movement posture to perform posture assessment operations. Therefore, in the preferred embodiment, if When the master wearable device 100a on the head is a headphone (or other wearable device with an output function), the output unit 140a of the master wearable device 100a can also complete the first posture evaluation in the computing unit 130a After the operation, feedback is directly given to the user through the output unit 140a, so that the user can make corrections in real time and continue to detect the corrected motion data to perform the second posture assessment operation.

Following the above, please refer to Figure 5 for a more detailed description. In steps S502 to S504 of Figure 5, when the user is about to enter the water, the slave sensor 120b on the slave wearable device 100b detects the user's hand movement and triggers the master wearable device 100a. The computing unit 130a begins to enter the movement posture evaluation period. That is to say, when the sensor 120b detects hand movement, the slave communication unit 110b will transmit a trigger message to the master communication unit 110a, so that the computing unit 130a starts to determine the movement posture.

Then, in steps S506 to S508 of FIG. 5 , when the computing unit 130 a determines the user's movement posture, that is, the swimming posture, which is free style in this example, the computing unit 130 a continues to perform the posture evaluation operation. That is, the master sensor 120a and the slave sensor 120b are used to detect motion data related to the motion posture.

In this embodiment, the motion data includes trajectories corresponding to different stroke movements and their corresponding angular accelerations and/or angles. In addition, each swimming posture and the corresponding stroke action can be referred to Table 1 to Table 4 below, and the present invention is not limited thereto. When the wearable device is set on the foot, it can also detect kicking, Lifting, bending, water-holding and water-holding movements, etc.

Table 1: Stroke action evaluation items corresponding to each stage of freestyle. freestyle assessment project Into the water Water cutting angle (left hand) Water cutting angle (right hand) Arm extension length (left hand) Arm extension length (left hand) hold water Body axis balance angle (left hand) Body axis balance angle (right hand) The length of the curved arm holding water (left hand) The length of the curved arm holding water (right hand) push water The acceleration of pushing water (left hand) The acceleration of pushing water (right hand) Water pushing length (left hand) Water pushing length (right hand) Comprehensive Hands crossed position (front/middle/back)

Table 2: Stroke action evaluation items corresponding to each stage of breaststroke. frog assessment project Outsourcing Outward stroke angle of the palm (left hand) Outward stroke angle of the palm (right hand) Inward paddling without Water inside the stroke Acceleration of trapped water (left hand) Acceleration of trapped water (right hand) reach forward without

Table 3: Stroke action evaluation items corresponding to each stage of the upright position. Yang assessment project Into the water Water cutting angle (left hand) Water cutting angle (right hand) Arm extension length (left hand) Arm extension length (left hand) hold water Body axis balance angle (left hand) Body axis balance angle (right hand) The length of the curved arm holding water (left hand) The length of the curved arm holding water (right hand) push water The acceleration of pushing water (left hand) The acceleration of pushing water (right hand) Water pushing length (left hand) Water pushing length (right hand) Comprehensive Hands crossed position (front/middle/back)

Table 4: Stroke action evaluation items corresponding to each stage of the butterfly pose. butterfly assessment project Into the water Water cutting angle (left hand) Water cutting angle (right hand) Arm extension length (left hand) Arm extension length (left hand) hold water The length of the curved arm holding water (left hand) The length of the curved arm holding water (right hand) push water The acceleration of pushing water (left hand) The acceleration of pushing water (right hand) Water pushing length (left hand) Water pushing length (right hand)

Then, after the computing unit 130a detects the corresponding motion data according to the interpreted motion posture, step S509 of FIG. 5 is continued, that is, the evaluation items of the different swimming postures are digitized in the form of an evaluation scale, that is, quantified into numbers. level. For example: detect the water cutting angle when entering the water in a free style, and use the following table 5 to digitize it; detect the degree of the user's hands crossing when swimming, use the following table 6 to digitize it; and detect the user's swimming time The body axis balance is digitized using Table 7 below, and the present invention is not limited to this. Among them, the part selected from the plurality of quantification levels is the correct reference section, which is convenient for judging whether the motion data in the posture evaluation result conforms to the movement posture.

Table 5: Conversion table for evaluation scale of water cutting angle during freestyle water entry. Scale -5 -4 -3 -2 -1 0 1 2 3 4 5 θ -25 ~ -20 -20 ~ -15 -15 ~ -10 -10 ~ -5 -5 ~ -2 -2 ~ +2 +2 ~ +5 +5 ~ +10 +10 ~ +15 +15 ~ +20 +20 ~ +25 Note: θ <0: Put the palm inward and put it into the water; θ ≈0: Put the palm flat and put it in the water; θ >0: Turn the palm outward and put it in the water.

Table 6: Conversion table for evaluation scale of freestyle cross-hand position. Scale 0 1 2 3 4 5 6 7 8 9 degree of crossover Hands crossed at 0 degrees degree of anterior crossing medium crossover degree of posterior crossover

Table 7: Freestyle body axis balance evaluation scale conversion table. Scale -3 -2 -1 0 +1 +2 +3 Axis balance The hands are too outside (the body is tilted to the outside) Axis balance Hands too inside (body tilted inward) Note: The body axis balance can be evaluated, for example, through the y-axis offset (Δy) between the master sensor 120a and/or the slave sensor 120b. Δy<0: the hand position is outside the body. When paddling, the scale is at a negative value; Δy≈0: the hand is balanced with the body, and the scale is close to 0; Δy>0: when the hand is paddling inside the body, the scale is at a positive value, but the invention is not limited to this.

Next, when the computing unit 130a collects enough motion data and digitizes it, step S510 of FIG. 5 is continued. Taking the freestyle of this embodiment as an example, during the computing period of the posture evaluation operation, the host sensor 120a and the slave sensor 120b will respectively perform detection based on the user's swimming movements of entering, holding, and pushing the water (please refer to Table 1 above for evaluation items, which will not be described again), so that the computing unit 130a can The detected data is used to evaluate whether the posture is correct or not, and the posture evaluation result is immediately fed back to the user through the output unit 140a of the bone conduction earphone.

Then, in step S512 of FIG. 5 , the subsequent operation process is determined based on whether the user has made immediate corrections based on the posture evaluation results. In the first case, when the user receives instant feedback of the posture assessment result, for example, the user is informed by voice that the water entry angle is -5, the water pushing acceleration is -3, and the body axis balance angle is 0. Although the axis of the body is not skewed when swimming by oneself, the palms of the hands are turned too inward when entering the water, and the force of pushing the water is insufficient, resulting in low acceleration. Therefore, the user immediately makes corrections, that is, correcting the posture of the palms when entering the water to everts into the water, and Increase the water pushing force and return to step S508 in FIG. 5 , that is, the master sensor 120 a and the slave sensor 120 b detect the corrected motion data to perform the corrected posture assessment operation again.

In the second case, when the user has not corrected the exercise posture, for example, he is resting after a short period of exercise, or when the user has corrected the exercise posture several times and is about to rest (i.e., step S512 is repeated several times followed by step S508 loop), then step S514 of Figure 5 is continued, and the host communication unit 110a transmits the posture evaluation result (ie, evaluation scale) analyzed by the computing unit 130a to the user device, for example, as shown in Table 8 below . In this way, users can analyze their own movements while resting and make corresponding corrections when moving backwards.

Table 8: User's stroke evaluation items and their evaluation results. freestyle assessment project assessment scale Into the water Water cutting angle (left hand) Water cutting angle (right hand) -5 +1 Arm extension length (left hand) Arm extension length (left hand) -5 -1 hold water Body axis balance angle (left hand) Body axis balance angle (right hand) -5 0 The length of the curved arm holding water (left hand) The length of the curved arm holding water (right hand) -5 +5 push water The acceleration of pushing water (left hand) The acceleration of pushing water (right hand) +3 +2 Water pushing length (left hand) Water pushing length (right hand) +3 +3 Comprehensive Hands crossed position (front/middle/back) +1 Note: Table 8 is an evaluation scale analyzed based on Table 1.

In addition, although the movement postures mentioned in some embodiments of the present invention are determined through the triggering of the slave sensor 120b, the present invention is not limited to this. It is assumed that the user only performs a single operation today. When performing various kinds of exercise, for example, if you only want to swim butterfly (or jog, skate, yoga, etc.) today, you can also specify the exercise to be performed to the host sensor group 120a through the application on the user device. At this time, when the user starts to exercise, the determination of the type of exercise posture can be omitted, and the exercise posture assessment operation can be directly performed.

Furthermore, the application downloaded and linked to the user's device can not only analyze the user's exercise situation based on the posture assessment results (evaluation scale) after exercise, but can also provide smart suggestions, such as directly telling the user what to do. What kind of exercise posture is correct, or provide training equipment recommended by the user. For swimming, users can be advised to purchase suitable paddling boards (such as track-corrected paddling boards, strength-enhancing paddling pads, paddling efficiency pads, high elbow angle pads, etc.) to improve the effectiveness of training.

Finally, the motion posture correction device of the present invention can also be used to detect whether the user has an accident. For example, when detecting the user's motion data while running, abnormal data is suddenly generated, indicating that the user may fall. Or encounter an accident; or when detecting the user's swimming movement data, abnormal data is generated (such as the user not moving forward and the data of the end of the limbs is disordered, and there is no regularity in normal swimming), indicating that the user may drowning. At this time, the motion posture correcting device of the present invention can also issue an immediate warning to notify surrounding people so that they can provide immediate assistance and avoid larger accidents.

To sum up, the device and method for correcting exercise posture of the present invention can achieve the following effects: (1) automatically determine the user's exercise posture through the sensor; (2) analyze the corresponding exercise data according to the exercise posture. Perform accurate detection and analysis; (3) Provide real-time feedback to the user, allowing the user to correct movement postures during exercise; (4) By linking the user's device, the user can also perform movement postures after exercise analysis; (5) It has an intelligent training suggestion function that can automatically give users appropriate training suggestions.

Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and changes can be made to these embodiments without departing from the principles and spirit of the invention. Variations, the scope of the present invention is defined by the appended claims and their equivalents.

10: Device for correcting sports posture 100a: Host wearable device 110a: Main control terminal communication unit 120a: Main control sensor 122a: Gyroscope 124a:Accelerometer 126a: Magnetometer 130a:Arithmetic unit 140a:Output unit 100b: Slave wearable device 110b: Slave communication unit 120b: slave sensor 122b: Gyroscope 124b:Accelerometer 126b: Magnetometer

The accompanying drawings are provided to enable those skilled in the art to further understand the present invention, and are incorporated into and constitute a part of the specification of the present invention. The drawings illustrate exemplary embodiments of the invention and, together with the description of the invention, serve to explain the principles of the invention. The following is a brief description of each figure of the present invention: Figure 1 is a schematic diagram of wearing a device for correcting motion posture according to an embodiment of the present invention. Movement Posture Correction Device FIG. 2 is a schematic configuration diagram of a host wearable device in a movement posture correction device according to an embodiment of the present invention. FIG. 3 is a schematic diagram of the configuration of the slave wearable device in the device for correcting motion posture according to an embodiment of the present invention. Figure 4 shows a method for determining movement postures according to an embodiment of the present invention. FIG. 5 is a schematic flowchart of a method for correcting motion posture according to an embodiment of the present invention.

10: Device for correcting sports posture

100a: Host wearable device

100b: Slave wearable device

Claims (9)

A device for correcting movement postures, including: a master-side sensor used to generate a master-side movement data for a first action posture; a slave-side sensor used to generate a slave-side sensor for a second action posture. terminal motion data; and a computing unit for obtaining the master terminal motion data and the slave terminal motion data, and judging based on them a duration for which the action postures maintain a movement posture; wherein, determining whether the duration is Reaching a duration threshold; reflecting the motion posture within the duration is related to a displacement trajectory between a portion to be measured on the slave sensor and a reference portion on the master sensor; wherein , the computing unit is used to calculate the displacement components and/or rotation of the x-axis, y-axis, and z-axis in the motion data generated by at least one of the master sensor and the slave sensor. Components are used to determine the swimming posture. If the displacement component of the z-axis is less than 0, the movement posture is judged to be the first swimming posture; if the displacement component of the z-axis is greater than 0, and the x-axis is relative to the y When the rotation component of the axis is greater than a rotation threshold, the movement posture is determined to be the second swimming posture; if the displacement component of the z-axis is less than 0, the rotation component of the x-axis relative to the y-axis is less than the rotation threshold , and the x-axis displacement component is less than the z-axis displacement component, then the movement posture is determined to be the third swimming posture; and, if the z-axis displacement component is less than 0, the x-axis rotation component relative to the y-axis is less than The rotation amount threshold value, and the x-axis displacement component is greater than the z-axis displacement component, then the movement posture is determined to be the fourth swimming posture. The device for correcting motion posture according to claim 1, wherein the computing unit is based on at least one of the master sensor and the slave sensor through the x-axis, y-axis and x-axis in the motion data. The displacement component and/or rotation component of the z-axis is used to determine whether the movement posture is a water posture, a running posture or other movement postures. The device for correcting motion posture according to claim 1, wherein the part to be measured and the reference part are the head, hands, waist, legs, feet or combinations thereof of the human body, and the slave sensor and The main control terminal sensor corresponds to a wireless earphone, a patch, a finger ring, a paddle, a glove, a swimming fin, or a combination thereof. The motion posture correction device of claim 1, wherein the displacement trajectory is composed of acceleration, angular velocity, angular acceleration, magnetism, image data or a combination thereof corresponding to the motion data for the computing unit to execute a posture The task is evaluated to produce a posture evaluation result. The motion posture correcting device as claimed in claim 4, further comprising a master wearable device having the master sensor and a slave wearable device having the slave sensor, the master wearable device At least one of the slave wearable devices outputs a prompt signal based on the posture assessment result; wherein the prompt signal is a sound signal, a vibration signal or an optical signal. The motion posture correction device of claim 1, wherein the computing unit is a central processing unit, a microprocessor, a digital signal processor or a controller. The motion posture correction device as described in claim 1, wherein the master sensor and the slave sensor are an accelerometer, a gravity sensor, a gyroscope, a magnetometer, an inertial sensor, a laser sensor, infrared sensor, image sensor or a combination thereof. A method for correcting movement postures, including: a method for determining movement postures, using the correcting movement posture device described in any one of claims 1 to 7, and using the computing unit based on the master sensor and the slave sensor. At least one of the devices passes the displacement component and/or rotation component of the x-axis, y-axis, and z-axis in the motion data; wherein, if the displacement component of the z-axis is less than 0, the motion posture is determined to be the first swimming posture. posture; if the displacement component of the z-axis is greater than 0, and the rotation component of the x-axis relative to the y-axis is greater than a rotation threshold, the movement posture is determined to be the second swimming posture; If the displacement component of the z-axis is less than 0, the rotation component of the x-axis relative to the y-axis is less than the rotation amount threshold, and the displacement component of the x-axis is less than the displacement component of the z-axis, the movement posture is determined to be the third swimming posture. posture; and if the displacement component of the z-axis is less than 0, the rotation component of the x-axis relative to the y-axis is less than the rotation threshold, and the x-axis displacement component is greater than the displacement component of the z-axis, the motion posture is determined to be The fourth swimming posture; performing a posture evaluation operation based on the displacement trajectory of the movement posture to generate a posture evaluation result; and in response to determining whether the posture evaluation result reaches a correct reference section of the movement posture, the operation The unit outputs a prompt signal to notify at least one of a master wearable device, a slave wearable device and a mobile device to provide the user with a training suggestion in real time. According to the method for correcting exercise postures described in claim 8, at least one of the prompt signal and the training suggestion is output and stored in the mobile device during the duration; wherein the prompt signal is reflected based on the displacement trajectory. It should be at least one of a water entry angle, a water pushing acceleration and a body axis balance between the part to be measured and the reference part.