107 results about "Muscle fatigue" patented technology

The invention discloses a lower limb muscle fatigue assessment method and system based on multi-modal physiological signals, and relates to the technical field of biomedical engineering, target muscles are selected, sEMG signals, AUS signals and respiratory flux VE data are synchronously collected, and RPE is recorded; preprocessing various signals to remove interference and abnormal points; extracting sEMG time-frequency domain features and AUS muscle thickness features; fusing features and constructing vectors in a standardized manner; dividing five fatigue grades; and a data set is divided according to stratified sampling, a model is optimized through five-fold cross validation, and real-time features are input to output a fatigue level. Multi-modal physiological signals are fused, fatigue evaluation accuracy is improved, different fatigue stages are finely adapted, muscle load and energy consumption are reduced through personalized adaption and a dynamic adjustment strategy, rehabilitation training safety and comfort are improved, and efficient recovery of lower limb movement functions is assisted.

The invention provides an exercise load multi-objective optimization method based on an anti-gravity rehabilitation treadmill. The exercise load multi-objective optimization method comprises the steps of obtaining gait kinematics data, plantar pressure distribution data, electromyographic signal data and pain scores of lower limbs of a patient; based on the data, a gait asymmetry index and a myoelectricity activation sequence consistency index are screened out, the gait asymmetry index and the myoelectricity activation sequence consistency index are combined with pain scores to serve as key features, and a function grading model is constructed to obtain function grades; establishing a multi-objective optimization problem by taking minimization of a pain score, maximization of joint activity and electromyographic activation sequence consistency and minimization of muscle fatigue as objectives and taking non-overrun of articular cartilage contact stress as a constraint; an NSGA-III algorithm is adopted to solve the problem, and a Pareto optimal solution set of the weight reduction proportion and the speed of the treadmill is obtained; through a PPO reinforcement learning strategy network, taking the real-time state of a patient as input, and selecting and dynamically adjusting treadmill parameters in a Pareto solution set; and issuing the adjusted parameters to a treadmill execution mechanism in real time.

The invention provides a muscle fatigue detection method and device based on a multi-modal physiological information graph, electronic equipment and a storage medium, and relates to the field of biological information. The method comprises the steps that space-time synchronization signals of a target muscle group are acquired, and the space-time synchronization signals comprise electromyographic signals and muscle oxygen signals; performing data preprocessing on the space-time synchronization signal to extract a target characteristic parameter reflecting a muscle fatigue state; performing visualization processing based on the target characteristic parameters to obtain a multi-modal physiological information graph; and inputting the multi-modal physiological information graph as input data into a target detection model to obtain a muscle fatigue classification result. Therefore, the fusion of the multi-modal physiological information graph is realized based on the acquired space-time synchronization signal and the target detection model, then the identification of muscle fatigue is completed, the objectivity and accuracy of waist and back muscle fatigue detection and classification are finally improved, and an objective and effective prevention means is provided for preventing chronic lumbago and acute muscle injury.

A method for determining a muscle fatigue of a muscle includes the step of electrostimulating the muscle at different frequencies, wherein the electrostimulation includes, at each frequency, a repetition of pulses during a period of time lower than 5 s. The method further includes the steps of determining forces developed by the muscle in response to the electrostimulations of step (i); and determining a muscle fatigue on basis of the determined forces.

The invention discloses a degradable, asymmetric-adhesion and non-swelling Janus hydrogel adhesive as well as a preparation method and application thereof, and belongs to the technical field of functional composite materials and preparation thereof. The problems that an existing Janus hydrogel cannot be degraded, is weak in adhesive force, adheres and is high in swelling are solved. Polyethylene glycol with double bonds, sodium alginate and chitosan are used for physical and covalent cross-linking, a degradable hydrogel substrate is constructed and then soaked in a phosphate buffer solution for swelling equilibrium, then a solution containing chitosan is used for preparing an adhesion coating, and the degradable and asymmetrically-adhered non-swelling Janus hydrogel adhesive is obtained. The adhesive can be applied to the biomedical fields of wound healing anti-adhesion, in-vivo degradability, intestinal repair and the like, and can also be used for adhesion of bioelectronics, epidermal physiological signal monitoring sensors, epidermal muscle fatigue monitoring sensors, rat subcutaneous muscle physiological signal monitoring sensors and muscle fatigue monitoring sensors.

The invention relates to the technical field of rehabilitation physiological monitoring, and discloses a nerve-muscle recovery detection method based on HRV recovery rate and sEMG frequency spectrum declination, and the method comprises the steps: firstly obtaining an effective RR interval sequence subjected to quality gating and a steady state sEMG segment of a specific muscle group; then, extracting systemic HRV recovery features and local muscle fatigue features in parallel, and respectively generating a normalized HRV recovery rate score and a myoelectricity recovery score; through multi-level fusion, a global nerve recovery score, a local muscle recovery score array and a comprehensive nerve-muscle recovery score are integrated; and finally, based on the multi-dimensional evaluation results, generating personalized training suggestions. Therefore, the nerve-muscle system preparation degree of an individual can be comprehensively and accurately reflected, and a scientific basis is provided for optimizing a training plan and preventing sport injuries.

The application discloses a lower limb muscle fatigue factor analysis method fusing multiple muscle shape features, and comprises the following steps: acquiring muscle shape features of a measured position based on three-dimensional coordinates of marker points of motion capture, constructing a multidimensional feature vector through the muscle shape features, and screening sensitive features sensitive to a fatigue state through variance analysis; obtaining combined features with strong sensitivity to the fatigue state and high interpretability through fatigue correlation analysis and joint feature screening; fusing the combined features into multidimensional fusion features through principal component analysis dimension reduction processing, and obtaining a fatigue factor based on the multidimensional fusion features. The application discloses a lower limb muscle fatigue factor analysis method fusing multiple muscle shape features, a system and a storage medium, synergic shape changes of the vastus lateralis muscle and the vastus medialis muscle are fused through a three-dimensional cone body volume model, fatigue degree quantitative indexes and fatigue cause contribution degrees are output in combination with an interpretable statistical model, and the lower limb muscle fatigue cause is explained.

The invention provides an intelligent fatigue recognition method and device, electronic equipment and a storage medium, and the method comprises the steps: evaluating a fatigue index of a target user through two dimensions, i.e., a target conduction velocity and a target fractal dimension, the target conduction velocity being capable of reflecting a muscle fiber function, the target fractal dimension being capable of reflecting neural control complexity, and the target fractal dimension being capable of reflecting neural control complexity; one-sidedness of single index evaluation is avoided, and muscle fatigue and central fatigue can be distinguished more accurately; through multi-channel and multi-time-scale analysis, signal characteristics of different muscle areas and different contraction rhythms are covered, and errors of a single channel and a time scale are reduced. Furthermore, the peripheral fatigue index and the central fatigue index of the target user are calculated in combination with the baseline conduction velocity and the baseline fractal dimension obtained based on the steady state surface electromyogram signal of the target user, and the method can adapt to the muscle basic states of different users, so that the evaluation result is more personalized and higher in accuracy.

The utility model relates to the technical field of bicycle manufacturing, and discloses a bicycle adjustable saddle which comprises a bicycle frame, a connecting rod is connected to the inner wall of the bicycle frame in a sliding mode, the inner wall of the connecting rod is connected with the bicycle frame through a lifting assembly so as to be used for adjusting the height of a saddle body, and a connecting frame is fixedly connected to the top end of the connecting rod. The inner wall of the connecting frame is slidably connected with a sliding frame, the inner wall of the sliding frame is rotatably connected with a rotary knob, the rear end of the rotary knob is connected with the connecting frame through a movable assembly so as to be used for adjusting the front-back position of the saddle body, and a buckle assembly is arranged on the outer wall of the rotary knob. By means of the rotatable design and the liftable design, the height and the angle of the saddle body can be adjusted, the height is adjusted to ensure that leg muscles are evenly used, unnecessary muscle fatigue is reduced, the angle is adjusted to ensure that the buttocks and the spine are located at the comfortable positions, discomfort caused by long-time riding is reduced, and the riding comfort is improved. And the riding comfort and efficiency are improved.

This application relates to the fields of biomedical engineering and rehabilitation engineering technology, and discloses a functional electrical stimulation method and system based on physiological simulation and adaptive closed-loop feedback. The method includes: calculating an ideal muscle activation curve based on a target trajectory; performing spatiotemporal asynchronous co-coding to generate a biomimetic stimulation pulse sequence by simulating temporal asynchrony, spatial and intensity modulation, and multi-muscle synergistic timing; simultaneously applying stimulation while monitoring the actual kinematic state and muscle physiological state in real time using sensors; and dynamically adjusting the internal parameters of the spatiotemporal asynchronous co-coding (T-S-C coding) based on the evaluation results of trajectory error and fatigue index to form an adaptive closed loop. This application, by combining biomimetic coding with an intelligent closed loop, fundamentally solves the problems of motion stiffness, muscle fatigue, and poor control precision caused by traditional FES, achieving smooth, sustained, and precise personalized motor function rehabilitation.

This invention discloses an intelligent exercise assessment and early warning system based on multi-source biosignal fusion, belonging to the field of exercise risk early warning technology. It collects multi-source data, including electromyography (EMG), heart rate, blood oxygen, skin conductance, and acceleration, from various wearable sensors to assess muscle fatigue, cardiovascular load, exercise status, and environmental factors. After preprocessing, the system uses quantitative models such as the muscle fatigue correction index and the cardiovascular load dynamic coefficient to calculate a comprehensive exercise risk early warning index by integrating physiological state and environmental factors. This results in a normalized risk classification, corresponding to low, medium, and high risk levels and marked with different color icons. This system overcomes the limitations of single signals, considering the synergistic effects of multi-dimensional physiological indicators and the influence of environmental factors, improving the accuracy of assessment in complex scenarios. It can effectively intervene before risks develop and is suitable for scenarios such as mass fitness and professional training. It is integrated into lightweight wearable devices without interfering with the exercise process.

The utility model provides an elastic self-resetting backrest seat, which relates to the technical field of office furniture, and comprises a waist leaning part and a backrest part, a fixed cover plate is arranged on the waist leaning part, a support piece is rotatably connected on the fixed cover plate, and the backrest part is connected on the support piece; a limiting space is formed between the fixed cover plate and the waist leaning part, and the lower end of the supporting piece extends and is inserted into the limiting space; the limiting space is further provided with a reset component used for abutting against the supporting piece. The chair has the beneficial effects that the backrest part is movably connected to the waist leaning part by adopting various structures such as the fixed cover plate, the supporting piece, the bolt and the reset part, so that the backrest part can rotate relative to the waist leaning part in the process that a human body leans backwards, and the backrest part is reset under the action of the reset part when the human body leans forwards; therefore, differentiated support is provided for different parts of the back of the human body, the comfort level is high, and muscle fatigue is reduced.

The invention discloses an immersion type reading auxiliary device. The immersion type reading auxiliary device comprises a table body, two lateral shielding plates and a lighting module. The desk body is provided with a bookcase, an adjusting support and a bookshelf, and the bookshelf is arranged on the desk body through the adjusting support; the two lateral shielding plates are arranged on the two sides of the table body respectively and supported by the table body, and the lateral shielding mechanism comprises a folded state and an unfolded state; the lighting module is arranged on the desk body, and the light output direction of the lighting module is configured to face the bookshelf. The support is adjusted so that a user can optimize the spatial position and the inclination angle of the bookshelf according to personal requirements, the reading comfort is improved, and muscle fatigue caused by bad postures can be effectively prevented. The lateral shielding plates form effective lateral visual isolation in the unfolded state, the lateral shielding plates and the bookcase jointly form a semi-enclosed reading space, interference of the surrounding environment to sight is limited, and a good visual environment is created for deep reading. The illumination module provides stable and uniform illumination for the reading area, ensures visual comfort and relieves eye fatigue.

The utility model relates to a sock capable of preventing a foot arch from falling. The sock comprises a sock body, a foot arch lifting piece, a fixing piece and a muscle massage piece. The sock body is a stocking, and the fixing piece is arranged at a cylinder opening of the sock body. The arch lifting piece extends in the length direction of a sock leg of the sock body, one end of the arch lifting piece is connected with the fixing piece, and the other end of the arch lifting piece is arranged at the position, corresponding to the human arch, of the sock body; the muscle massage piece is wound around the sock body and corresponds to the shank of the human body. The foot arch lifting piece has the functions of lifting and supporting the foot arch, the muscle massage piece has the function of massaging calf muscles, muscle fatigue is delayed, the descending height of the inner side longitudinal arch after foot fatigue is reduced, and therefore the exercise performance is improved.

This utility model discloses a portable grounding resistance meter calibration device, relating to the field of resistance meter calibration technology. It includes a housing with a cover hinged to one side. A calibration instrument body is fixedly connected inside the housing, and a test interface is provided on one side of the calibration instrument body. A knob is rotatably connected to the side of the test interface on the calibration instrument body. This utility model adopts the above structure, fixing side frames to both sides of the housing. A drive assembly, a lifting assembly, and a moving assembly are installed on the side frames. The drive assembly drives the lifting and moving components, forming a bag-like structure. Workers can move the device via the moving assembly by lifting the lifting assembly, avoiding the arm muscle fatigue and soreness caused by prolonged carrying of traditional handheld devices, reducing the risk of the equipment falling and being damaged due to physical exhaustion, and making it easy to carry, greatly improving operational convenience.

Methods and systems for providing monitoring and feedback of muscle use involve monitoring frequencies in measurements of acceleration and / or rotation of at least one muscle, detecting high frequency oscillations (HFOs) indicative of muscle fatigue preceding muscle failure in the monitored frequencies, and, in response to the detection of the HFOs, sending an alert before occurrence of muscle failure.

The invention discloses a functional electrical stimulation and pneumatic muscle exoskeleton cooperative control method based on dynamic angle distribution. The method comprises the steps that S1, an expected track is generated according to parameters input by a user; s2, elbow joint motion angle parameters are collected in real time to generate an actual track; s3, constructing a function for dynamically distributing angles of functional electrical stimulation and pneumatic muscle exoskeleton according to an error angle between an expected trajectory and an actual trajectory; s4, constructing two iterative learning controllers for performing iterative learning on the angles of the functional electrical stimulation and the pneumatic muscle exoskeleton respectively, and outputting functional electrical stimulation control parameters and pneumatic muscle exoskeleton control parameters; s5, the electrical stimulator outputs an electric pulse according to the pulse width signal; meanwhile, the micro pump outputs an air source to inflate the pneumatic muscle exoskeleton according to a regulating signal of the proportional valve. Error angles are dynamically distributed, output of functional electrical stimulation and pneumatic muscle exoskeleton is adjusted, the auxiliary effect of the functional electrical stimulation and the pneumatic muscle exoskeleton on the upper limb joints is adjusted, the upper limb joints complete expected movement, control precision is guaranteed, muscle fatigue possibly caused by electrical stimulation is reduced, damage to muscles is relieved, and the effect of controlling the upper limb joints is achieved. The application value of the hybrid rehabilitation system in the exercise rehabilitation field is improved.

This invention discloses a traditional Chinese medicine prebiotic composition for treating high-altitude hypoxia and fatigue, and its preparation method. It belongs to the field of traditional Chinese medicine technology. The prebiotic composition comprises the following raw medicinal materials in parts by weight: 2-20 parts of Polygonatum odoratum, 2-20 parts of chicory, 2-20 parts of wolfberry, 3-30 parts of Codonopsis pilosula, 4-40 parts of Astragalus membranaceus, 2-20 parts of Angelica sinensis, 2-20 parts of jujube, and 2-20 parts of turmeric. The composition of this invention can improve the body's aerobic metabolism, enhance cellular oxygen utilization, strengthen high-altitude adaptability, and improve work capacity under hypoxic conditions. Furthermore, this composition helps relieve central and musculoskeletal fatigue, while having no toxic side effects, and exhibits significant anti-fatigue, hypoxia tolerance, and immune-regulating effects.

The invention discloses a gyromagnetic functional bed which comprises a base, a bed frame, a supporting bed board, a mattress, a body position changing mechanism and a damping gyromagnetic motor, the bed frame is arranged above the base, the body position changing mechanism is arranged on the bed frame, the supporting bed board is arranged above the body position changing mechanism, the mattress is arranged on the supporting bed board, and the damping gyromagnetic motor is arranged on the supporting bed board. And the damping gyromagnet motor is arranged in the mattress. Through the linkage of the body position changing mechanism, the supporting bed board and the mattress, the angle of the bed surface such as back raising and leg raising can be flexibly adjusted according to the requirements of a user, different scenes such as lying, reading and resting can be adapted, the use comfort and the scene adaptability are improved, meanwhile, the damping gyromagnetic motor is arranged in the mattress, it is guaranteed that the gyromagnetic function can directly act on the human body, and the comfort of the user is improved. Local blood circulation is improved, muscle fatigue is relieved, noise and vibration during operation of the motor are reduced by means of the damping design, the rest of a user is prevented from being affected, and therefore the comfortable experience and the health requirement are met.

The utility model discloses a kind of postoperative shaping auxiliary devices for neck and back, applied in rehabilitation engineering technical field, including support plate, the top of the support plate is bolted with fixed plate, the top of the front of fixed plate is bolted with adjusting box;The utility model can reduce blood stasis caused by long-term braking by moderate activity design, accelerate inflammation subsides and wound healing, reduce muscle spasm and nerve compression on the basis of maintaining neck physiological curvature, relieve postoperative pain, reduce postoperative muscle fatigue and joint stiffness by dispersing neck pressure, improve patient comfort degree;While maintaining the stability of spine, allow moderate activity, avoid muscle atrophy or joint stiffness caused by long-term complete braking, support device shares back muscle load, relieve postoperative muscle fatigue and spasm caused by compensatory effort, buffer layer reduces the friction of skin and hard brace, reduce the risk of skin damage caused by long-term wearing.

The utility model discloses a multifunctional massage waistband which comprises a waistband body, a control module, an air bag massage module and a heating module. The waistband main body comprises a waist cone body and a waistband; the control module is arranged in the storage groove; the air bag massage module is arranged in the containing groove. The air bag massage module is selected to massage a user, muscle stress of the user is softer in an air bag expansion mode, the user does not feel uncomfortable, the massage experience of the user is greatly improved, only the heating module is arranged, and the heating part and the massage piece are attached and fixed, so that warm massage enjoyment is achieved for the user, and the user experience is improved. The warming effect can promote muscle relaxation, a better massage effect can be achieved for a user, micro-current pulse signals sent by the control module are transmitted to the human body through the heating part and the massage pieces, muscle contraction and relaxation are stimulated, the muscle capacity is enhanced, muscle fatigue can be relieved, local circulation can be promoted, and cell metabolism can be enhanced.

Muscles held under tension undergo a chemical reaction that generates heat within the muscle, and subsequently that heat contributes to muscle fatigue. Research in the field of physiology and sports medicine has demonstrated that actively cooling an athlete's core body temperature can rapidly rejuvenate a fatigued muscle thereby allowing the athlete to extend the muscle's potential. Mammalians have several areas of glabrous tissue wherein a dense network of veins near the surface of the skin act as heat exchangers for cooling and regulating their core temperature. The process for effective cooling via glabrous tissue is optimized within a narrow range of temperatures. Presented herein is a handheld cooling device which is optimized for the efficient transfer of heat away from the fatigued muscles via direct contact with glabrous tissue.

The present invention relates to a smart dumbbell for measuring a user's grip strength and a smart device-based exercise amount measurement system including same. The exercise amount measurement system comprises: a smart muscle band which is mounted on a specific body part of a user, obtains an electromyogram signal, generated from muscles of the body part, by using an embedded electrode for electromyogram measurement, and calculates muscle fatigue and muscle activity of the muscles on the basis of the electromyogram signal; a smart dumbbell which generates a strain sensing signal through an embedded first strain sensor when gripped by the user, and inputs the strain sensing signal to a pre-trained neural network-based grip strength prediction model to generate grip strength data; and an evaluation system which stores the muscle fatigue, the muscle activity, and the grip strength data in an internal storage and monitors same.

The invention discloses an auxiliary system for ultrasonic examination, which comprises a movable mechanical arm, and the movable mechanical arm comprises a first arm section, a second arm section, a third arm section, a fourth arm section, a fifth arm section and a sixth arm section which are rotationally connected in sequence; a plurality of mounting holes are formed in the head end of the first arm section, a switching disc is hinged to the tail end of the sixth arm section, and a hand support is mounted on the switching disc. According to the invention, the movable mechanical arm can be controlled to quickly and accurately move the hand support to the examination part by holding the ultrasonic probe with the gyroscope by hand, and the arm is supported by the hand support in the moving process, so that the arm muscle fatigue of an ultrasonic doctor is greatly relieved, the ultrasonic examination efficiency is improved, the operation stability is kept, and the ultrasonic image quality is ensured.

The invention provides a muscle rehabilitation training intensity monitoring method and system, and the method comprises the steps: obtaining first-round joint activity data, first-round muscle training saturation data and first-round muscle fatigue tolerance data when determining to start muscle rehabilitation training; when the first-round muscle fatigue tolerance data is smaller than a preset fatigue threshold value, muscle rehabilitation training is suspended until the preset rest duration is met, and muscle rehabilitation training is recovered; the muscle rehabilitation training process is repeated until the joint motion range data difference value of two continuous rounds of muscle rehabilitation training meets the preset training requirement and the muscle training saturation data difference value of the two continuous rounds of muscle rehabilitation training meets the preset training requirement, and the muscle rehabilitation training is finished. The problem that in the prior art, the training intensity is not clear due to the fact that the training amount tolerance cannot be objectively detected is solved. According to the method provided by the invention, the training intensity can be clearly determined by objectively monitoring the training amount tolerance.

The invention aims to provide a multi-stage muscle fatigue monitoring method based on double clustering and confusion sample screening, and the method is used for jointly screening and processing confusion samples by setting a distance difference threshold and combining a double clustering model so as to refine fatigue categories. According to the embodiment, three-classification basis is expanded to five-classification basis, and the development process of fatigue is reflected in detail. The method adopts an unsupervised clustering technology, does not depend on subjective labels, and only takes real labels recorded by a subjective scale as approximate fatigue evaluation reference of a clustering result. According to the method, only multi-channel intermediate-frequency signals are used as fatigue characteristics to ensure the real-time performance of the method, and the main calculation burden of the method is concentrated on fast Fourier transform.

The invention discloses a muscle fatigue intelligent detection method and system based on multi-signal acquisition, and relates to the technical field of muscle fatigue detection, and the method comprises the following steps: S1, synchronously acquiring a surface electromyogram signal and a multi-channel pressure signal; step S2, carrying out preprocessing including dynamic Butterworth filtering and wavelet soft threshold denoising on the acquired signals; s3, performing continuous wavelet transform on the preprocessed signal, and extracting frequency characteristics; s4, dynamically distributing fusion weight according to the real-time signal-to-noise ratio of each channel; s5, fusing the weighted feature information based on a Bayesian inference model, and outputting a muscle fatigue state judgment result; through efficient filtering, accurate feature extraction and effective multi-information fusion, the accuracy and reliability of muscle fatigue detection are improved by using a Bayesian reasoning method.

The invention relates to a muscle fatigue early warning method and device, a storage medium and electronic equipment, and relates to the technical field of muscle fatigue monitoring, and the method comprises the steps: obtaining the fitness plan information of a target user at this time; determining at least one muscle part to be monitored from the muscle parts of the target user according to the planned fitness actions and the corresponding planned times; actual electromyographic signals of all the to-be-monitored muscle parts are obtained, if the actual electromyographic signals are abnormal, the corresponding to-be-monitored muscle parts are determined as abnormal muscle parts, and according to actual fitness actions currently completed by the target user and the corresponding actual times, the abnormal muscle parts are determined to be abnormal muscle parts; determining whether the abnormal muscle part has a muscle fatigue risk or not; if it is determined that the abnormal muscle part has the muscle fatigue risk, a muscle fatigue early warning is given out for the abnormal muscle part. The method has the effect of improving the accuracy of muscle fatigue early warning.

The invention belongs to the overall field of aircrafts, and particularly relates to a portable special air defense vest and a working method.The portable special air defense vest comprises a force bearing structure, a power supply device, a data acquisition device and a control device.The force bearing structure comprises a first shoulder rest, a second shoulder rest, a waistband, a first supporting rod, a second supporting rod and a torque device; the first shoulder rest is made of an arc-shaped engineering plastic material, the inner surface of the first shoulder rest is padded with memory sponge, the first shoulder rest is used for dispersing the load borne by the left shoulder, an anti-skid rubber layer is arranged on the outer side of the second shoulder rest, a positioning clamping groove is formed in the contact portion of the second shoulder rest and the portable aircraft, and the second shoulder rest bears the gravity of the aircraft and transmits the gravity to the torque device. According to the portable air defense weapon, single-shoulder stress of the portable air defense weapon is converted into double-shoulder uniform stress through the force bearing structure, the single-shoulder stress is reduced, muscle fatigue and damage caused by the fact that the right shoulder bears high weight for a long time are avoided, the shoulder fatigue feeling is reduced during continuous combat, and the comfort level and combat continuity of operators are improved.

1. The name of the design product: cold and hot compress physiotherapy device (multifunctional). 2. The use of the design product: the design product can be used by hand or worn on the limbs to protect the body parts of the user by controlling the controller to cool or heat the device. It can be used as a physiotherapy device to massage and relieve muscle fatigue after exercise. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: combination of use state diagram. 5. Other components that need to be explained: component 3 is the same as component 2, so component 3 is omitted. 6. Other circumstances that need to be explained: the model shape in the use state reference figure 1 and the use state reference figure 2 is not within the protection scope of the design.