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Hamstring Muscle Assessment And Strengthening System

Abstract: A hamstring muscle assessment and strengthening system, comprising a housing 101 accessed by user(s) for performing hamstring muscle assessment and enhancement, a bed assembly 102 to conduct a hamstring test, a pair of motorized sliders 103 supporting an extendable L-shaped rod 104 terminating in a support plate 105 for lifting, positioning, and holding leg during test, an imaging unit 107 and a thermal imaging camera 108 detect leg position and angle and muscle temperature variations, a vertical platform 109 installed with a pair of horizontal rollers 110 to grip lower legs during glute-ham raise exercise, a semi-cylindrical cushion 111 mounted on a hydraulic pole 112 to support knees of user, a horizontal bar 113 having a safety harness 114 to be worn by user to stabilize upper body during glute-ham raise motion, a chair-shaped structure 115 integrated with a semi-cylindrical shell 116 to enclose upper contour of user’s leg.

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Patent Information

Application #
Filing Date
26 April 2025
Publication Number
20/2025
Publication Type
INA
Invention Field
MECHANICAL ENGINEERING
Status
Email
Parent Application

Applicants

Marwadi University
Rajkot - Morbi Road, Rajkot 360003 Gujarat, India.

Inventors

1. Dr. Himanshi Harshadrai Ruparelia
Department of Physiotherapy, Marwadi University, Rajkot - Morbi Road, Rajkot 360003 Gujarat, India.
2. Prapti Nitinbhai Gajera
Department of Physiotherapy, Marwadi University, Rajkot - Morbi Road, Rajkot 360003 Gujarat, India.
3. Khushi Tajdinali Halari
Department of Physiotherapy, Marwadi University, Rajkot - Morbi Road, Rajkot 360003 Gujarat, India.
4. Ravindra Kishorbhai Nakum
Department of Physiotherapy, Marwadi University, Rajkot - Morbi Road, Rajkot 360003 Gujarat, India.
5. Anjali Manoharbhai Chandwani
Department of Physiotherapy, Marwadi University, Rajkot - Morbi Road, Rajkot 360003 Gujarat, India.
6. Lalji Maheshbhai Parmar
Department of Physiotherapy, Marwadi University, Rajkot - Morbi Road, Rajkot 360003 Gujarat, India.

Specification

Description:FIELD OF THE INVENTION

[0001] The present invention relates to a hamstring muscle assessment and strengthening system that performs hamstring muscle assessment by automatically lifting, positioning, and holding leg of a user to evaluate hamstring flexibility, strength, and muscle health, while also provide massaging sensation over the legs for rehabilitation of the user's hamstring muscles post exercise or assessment.

BACKGROUND OF THE INVENTION

[0002] Hamstring muscle assessment is done to evaluate muscle strength, flexibility, and function, helping identify any imbalances, injuries, or weaknesses. This assessment is crucial for preventing injuries, improving athletic performance, and guiding rehabilitation efforts. Proper leg position and angle during assessment are important because they ensure accurate measurements of muscle flexibility and strength, reducing the risk of misdiagnosis. Incorrect positioning lead to inaccurate results, potentially overlooking underlying issues. Rehabilitation after assessment or exercise is vital for recovery, as it addresses muscle imbalances, reduces the risk of future injuries, and promotes healing. Targeted rehabilitation exercises help strengthen the hamstrings, restore flexibility, and improve overall leg function, ensuring long-term health and optimal performance, particularly for athletes or individuals with previous injuries.

[0003] Traditionally, hamstring muscle assessment is performed through physical tests such as the straight-leg raise, hamstring flexibility tests (e.g., sit-and-reach), or manual resistance tests where a clinician applies pressure to the leg while the person attempts to resist. These methods assess strength, flexibility, and range of motion. Tools like goniometers may be used to measure joint angles, but assessments largely rely on subjective observations and manual muscle testing. However, these traditional methods have several drawbacks. They can be inaccurate due to variability in tester experience or patient effort, and they often fail to provide detailed, real-time data about muscle function. Additionally, these assessments may not detect underlying issues like muscle imbalances or micro-tears. There is also a risk of causing discomfort or injury if the leg is not positioned properly. Traditional methods also lack objective, consistent results over time.

[0004] FR3096269A1 discloses about a hamstring strengthening device. This device comprises a frame, as well as a trolley, provided with a seat and mounted mobile in translation along an axis on the frame. It also comprises a footrest, provided with at least one footrest and mounted on the frame being, during use, both fixed relative to the frame and arranged relative to the frame. carriage so that, by bending at least one of its legs, the user seated on the seat moves the carriage in translation and thus modifies the axial spacing between the carriage and the footrest. The apparatus also comprises a force application member, applying to the carriage a force which tends to move the carriage away from the footrest and which, in use, must be overcome by a force produced. by the user's hamstrings to control the movement of the carriage in translation. This device is simple and safe to use, while allowing to work the hamstrings in an efficient and complete way.

[0006] US20170014681A1 discloses about an inclined apparatus for undertaking exercise for hamstring eccentric and concentric loading and in particular, but not limited to, exercises such as the Nordic Hamstring Exercise, the Russian Hamstring Exercise and Russian curls. The apparatus can be utilized for sports training and preparation, injury recovery and rehabilitation and injury prevention. The main body of the device is so inclined as to ensure that the user does not hyper extend their knee and cause additional injury. The height of the higher end of the device above ground level in conjunction with the leg restraints means that the collateral injuries which may occur when undertaking this exercise regime to the traditional form of dorsiflexion and plantarflexion and indeed laterally in either direction are avoided.

[0007] Conventionally, many systems have been developed that are capable of assessing muscle strength and flexibility. However, these existing systems lack the ability to automatically adjust leg positioning and provide real-time feedback during the assessment. Additionally, these existing systems also lacks integrated rehabilitation features, such as personalized exercise regimens and post-exercise recovery means, to aid in muscle strengthening and recovery.

[0008] In order to overcome the aforementioned drawbacks, there exists a need in the art to develop a system that requires to be capable of automatically adjusting leg positioning and providing real-time feedback to accurately assess hamstring flexibility, strength, and muscle health. In addition, the developed system also needs to provide a means for performing glute-ham raise exercise in an effective manner.

OBJECTS OF THE INVENTION

[0009] The principal object of the present invention is to overcome the disadvantages of the prior art.

[0010] An object of the present invention is to develop a system that is capable of assessing and enhancing hamstring muscle strength and flexibility in a personalized, guided, and automated manner, thereby reducing the need for a trainer or guide.

[0011] Another object of the present invention is to develop a system that is capable of performing precise muscle evaluation by real-time monitoring of leg position, range of motion, and muscle response during diagnostic or training procedures, thus enabling accurate assessment.

[0012] Another object of the present invention is to develop a system that is capable of providing automated feedback and reports based on muscle condition, flexibility levels, and recovery progress, thereby aiding physiotherapists and users in long-term monitoring.

[0013] Another object of the present invention is to develop a system that is capable of performing automated rehabilitation of the user’s leg post-exercise and assessment, by relaxing and stimulating the muscles based on real-time muscle fatigue or tension feedback.

[0014] Yet another object of the present invention is to develop a system that is capable of offering interactive guidance and support to users during rehabilitation or strength-building exercises to ensure proper form and minimize injury risk.

[0015] The foregoing and other objects, features, and advantages of the present invention will become readily apparent upon further review of the following detailed description of the preferred embodiment as illustrated in the accompanying drawings.

SUMMARY OF THE INVENTION

[0016] The present invention relates to a hamstring muscle assessment and strengthening system that is capable of evaluating the flexibility, strength, and health of the hamstring muscles through guided diagnostics and controlled exercises. Further, the system is capable of providing real-time feedback, automated adjustments, and post-exercise recovery support based on user-specific muscle conditions.

[0017] According to an embodiment of the present invention, a hamstring muscle assessment and strengthening system, comprises of a housing associated with the system configured to be accessed by user(s) for performing hamstring muscle assessment and enhancement, a computing unit wirelessly associated with the system is accessed by a user to provide personal and medical information as input into a user profile of the user, a bed assembly internally arranged within the housing to conduct a hamstring flexibility and strength test, a pair of motorized sliders disposed on opposite lateral sides of the bed, the sliders supporting an extendable L-shaped rod terminating in a support plate via a first motorized ball-and-socket joint for lifting, positioning, and holding leg of the user during the test, a holographic projection unit configured on inside the housing to project real-time visual guidance to assist the user in positioning their leg at predefined test angles, an artificial intelligence-based imaging unit and a thermal imaging camera, both integrated within the housing to detect leg position and angle during movement, along with detecting muscle temperature variations indicative of strain or inflammation, accordingly the slider, first ball-and-socket joint and rod are regulated to ensure accurate leg positioning and generate a comprehensive muscle health report that is further updated against a user profile on the database for reference, a vertical platform installed with an inner rear wall of the housing and installed with a pair of horizontal rollers to receive and grip lower legs of the user during a glute-ham raise exercise, a semi-cylindrical cushion is positioned anteriorly relative to the vertical platform and mounted on a vertically actuated hydraulic pole to support knees of the user during exercise, a horizontal bar disposed adjacent to the vertical platform and coupled to a hydraulic piston through a second motorized ball-and-socket joint, a safety harness is secured to the vertical bar and adapted to be worn by the user to stabilize upper body of the user and transfer controlled resistance from the piston to the user during the glute-ham raise motion.

[0018] According to another embodiment of the present invention, the system further comprises of a chair-shaped structure provided inside the hosing to support the user in a seated position post-exercise, the chair is integrated with a semi-cylindrical shell positioned at forward edge to enclose upper contour of user’s leg, plurality of hollow massage patches are embedded within the leg shell to inflate and deflate in synchrony under control of an air inflator unit provided with the structure to provide massaging sensation over the legs, a plurality of EMG (Electromyography) sensors embedded within the massage patches to continuously monitor real-time electrical activity of hamstring muscles during massage for enhancing post-exercise muscle recovery, atleast one Peltier unit thermoelectrically coupled with shell delivers selective heating or cooling to the hamstring region of user, plurality of electrode patches are affixed to the shell to deliver electrical stimulation pulses to the hamstring muscles, a vertical motorized slider is connected to the vertical platform for vertical displacement of the rollers to accommodate user(s) with varying leg lengths and statures, a motorized staircase assembly is integrated with the cushion to assist the user in comfortably mounting and aligning with the cushion and rollers, the housing includes an audio unit embedded within the housing to emit alerts, exercise prompts, or progress notifications to guide the user and ensure safety during use, the test results are displayed on the computing unit for user-interaction, storing progress reports in the database for long-term patient tracking.

[0019] While the invention has been described and shown with particular reference to the preferred embodiment, it will be apparent that variations might be possible that would fall within the scope of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

[0020] These and other features, aspects, and advantages of the present invention will become better understood with regard to the following description, appended claims, and accompanying drawings where:
Figure 1 illustrates an isometric view of hamstring muscle assessment and strengthening system.

DETAILED DESCRIPTION OF THE INVENTION

[0021] The following description includes the preferred best mode of one embodiment of the present invention. It will be clear from this description of the invention that the invention is not limited to these illustrated embodiments but that the invention also includes a variety of modifications and embodiments thereto. Therefore, the present description should be seen as illustrative and not limiting. While the invention is susceptible to various modifications and alternative constructions, it should be understood, that there is no intention to limit the invention to the specific form disclosed, but, on the contrary, the invention is to cover all modifications, alternative constructions, and equivalents falling within the spirit and scope of the invention as defined in the claims.

[0022] In any embodiment described herein, the open-ended terms "comprising," "comprises,” and the like (which are synonymous with "including," "having” and "characterized by") may be replaced by the respective partially closed phrases "consisting essentially of," consists essentially of," and the like or the respective closed phrases "consisting of," "consists of, the like.

[0023] As used herein, the singular forms “a,” “an,” and “the” designate both the singular and the plural, unless expressly stated to designate the singular only.

[0024] The present invention relates to a hamstring muscle assessment and strengthening system that is capable of performing real-time assessment of hamstring flexibility, strength, and muscle health of a user in an automated manner. Additionally, the system is also capable of guiding users through personalized exercise routines, dynamically adjusting support and resistance levels, and facilitating targeted recovery processes to enhance rehabilitation outcomes.

[0025] Referring to Figure 1, an isometric view of hamstring muscle assessment and strengthening system is illustrated, comprising a housing 101 associated with the system, a bed assembly 102 internally arranged within the housing 101, a pair of motorized sliders 103 disposed on opposite lateral sides of the bed, the sliders 103 supporting an extendable L-shaped rod 104 terminating in a support plate 105, a holographic projection unit 106 configured on inside the housing 101, an artificial intelligence-based imaging unit 107 and a thermal imaging camera 108 integrated within the housing 101, a vertical platform 109 installed with an inner rear wall of the housing 101 and installed with a pair of horizontal rollers 110.

[0026] Figure 1 further illustrates a semi-cylindrical cushion 111 is positioned anteriorly relative to the vertical platform 109 and mounted on a vertically actuated hydraulic pole 112, a horizontal bar 113 disposed adjacent to the vertical platform 109, a safety harness 114 is secured to the horizontal bar 113, a chair-shaped structure 115 provided inside the hosing, the chair is integrated with a semi-cylindrical shell 116 positioned at forward edge, plurality of hollow massage patches 117 are embedded within the leg shell 116, plurality of electrode patches 118 are affixed to the shell 116, a vertical motorized slider 119 is connected to the vertical platform 109, a motorized staircase assembly 120 is integrated with the cushion 111, and an audio unit 121 embedded within the housing 101.

[0027] The system disclosed herein comprises of a housing 101 configured to accommodate multiple subcomponents necessary for performing hamstring muscle assessment and strengthening exercises. The housing 101 is ergonomically designed to provide a secure, enclosed, and accessible environment for a user during testing and rehabilitation. The housing 101 is structured with sufficient internal space to integrate both static and dynamic components.

[0028] An onboard microcontroller associated with the system is mounted within the housing 101 and configured to act as a central processing and control unit for the system. The microcontroller is integrated with a communication module, such as Bluetooth, Wi-Fi, or ZigBee, to establish wireless connectivity between the microcontroller and a computing unit that is accessed by the user. The computing unit is accessed by the user to input personal and medical information as input into a user profile, which is created and stored in a database embedded within the system.

[0029] Upon providing the input details via the computing unit, the user is required to access a bed assembly 102 internally arranged within the housing 101 to initiate hamstring muscle assessment. The bed assembly 102 is ergonomically designed to support the user in a reclined or semi-reclined posture that facilitates both passive and active hamstring evaluations, including hamstring flexibility testing, range of motion analysis, and strength resistance monitoring.

[0030] A pair of motorized sliders 103 are arranged on opposite lateral sides of the bed assembly 102. Each slider supports an extendable L-shaped rod 104 and the free end of each rod 104 is connected to a support plate 105 is operably mounted via a first motorized ball-and-socket joint, wherein upon attaining the desired posture over the bed assembly 102, the user is required to provide an input command via the computing unit to initiate the hamstring assessment procedure. Once the command is received, the microcontroller actuates the slider to translate and position the plate 105 in proximity to the leg of the user.

[0031] The motorized slider used herein consists of a sliding-rail and multiple rolling members which are integrated with a step motor. On actuation, the step motor rotates the rolling members in order to provide rolling motion to the members which results in sliding of the members and provide translation to the rods 104 along the slider in order to position the rods 104 along with the plate 105 in proximity to the leg of the user.

[0032] Post positioning of the plate 105, the microcontroller actuates the rods 104 in synchronization with the motorized ball-and-socket joints to gradually lift and hold the user’s leg at predefined test angles for hamstring flexibility and strength evaluation. The extension of the rods 104 is powered by a pneumatic unit associated with system, that includes an air compressor, air cylinder, air valves and piston which works in collaboration to aid in extension and retraction of the rods 104.

[0033] The air compressor used herein extract the air from surrounding and increases the pressure of the air by reducing the volume of the air. The air compressor is consisting of two main parts including a motor and a pump. The motor powers the compressor pump which uses the energy from the motor drive to draw in atmospheric air and compress to elevated pressure. The compressed air is then sent through a discharge tube into the cylinder across the valve. The compressed air in the cylinder tends to pushes out the piston to extend. The piston is attached to the gripper, wherein the extension/retraction of the piston corresponds to the extension of the rods 104 for lifting and holding leg of the user during the test.

[0034] Simultaneously, the ball-and-socket joint is actuated to rotate the support plate 105, for ensuring that the leg is positioned at predefined angular orientations critical for flexibility and strength assessment such as the 90-90 test or straight leg raise test. The motorized ball-and-socket joint used herein consists of a spherical ball enclosed within a socket. The ball is connected to the support plate 105 while the socket is fixed to the rods 104. The ball and socket joint is integrated with a compact direct current (DC) electric motor, upon actuation the motor applies controlled torque to rotate the ball within the socket in desired directions, for providing required movement to the support plate 105. The ball-and-socket joint operates in synchrony with the sliders 103 and rods 104 extension to achieve smooth, progressive leg movement without causing discomfort or overstrain.

[0035] With the start of assessment, the microcontroller actuates a holographic projection unit 106 configured on inside the housing 101 to project real-time visual guidance to assist the user in positioning their leg at predefined test angles. The projection unit 106 displays predefined leg positioning angles and movement paths directly in surrounding space within the housing 101. By visualizing these test parameters in three dimensions, the user is able to align their leg accurately for hamstring assessments.

[0036] The projection unit 106 operates by using a combination of light sources, mirrors, and lenses to create a three-dimensional visual representation. The projection unit 106 consists of a laser light source that projects onto a beam splitter, which divides the light into multiple paths. These paths are then directed onto a diffraction grating to produce the holographic image. Micro-lenses and mirrors further focus and align the light to form a clear 3D projection. The microcontroller linked with the projection unit 106 controls the image content, ensuring the correct images and videos are displayed to ensures that the user maintains proper posture and alignment throughout the procedure, for reducing the risk of error and enabling precise muscle performance evaluation.

[0037] Simultaneously, the microcontroller actuates an artificial intelligence-based imaging unit 107 and a thermal imaging camera 108, integrated within the housing 101 to perform real-time analysis of the user’s leg positioning and movement. The imaging unit 107 utilizes advanced machine learning protocols to monitor spatial orientation, angle, and trajectory of the leg during hamstring assessment. Simultaneously, the thermal imaging camera 108 monitor surface temperature variations along the user’s hamstring region.

[0038] The artificial intelligence-based imaging unit 107 comprises of a high-resolution camera lens, digital camera sensor and a processor, wherein the lens captures multiple images from different angles and perspectives in vicinity of the bed assembly 102 with the help of digital camera sensor for providing comprehensive coverage of the user. The captured images then go through pre-processing steps by the integrated processor that utilizes AI-based image processing protocols to analyze the captured visuals, for identifying the leg position and angle during movement. The data is then sent to the microcontroller for analysis.

[0039] The thermal imaging camera 108 detects muscle temperature variations by capturing infrared radiation emitted from the user’s body and converting it into thermal images. The thermal imaging camera 108 include an infrared lens, a microbolometer (IR sensor array), and a signal processor. The IR lens focuses infrared radiation from the muscle area onto the microbolometer, which detects heat differences and produces electrical signals corresponding to temperature variations. These signals are processed by the signal processor sent to the microcontroller.

[0040] The microcontroller continuously receives real-time data from the imaging unit 107 and the thermal imaging camera 108. Using this data, the microcontroller dynamically controls the actuation of the motorized sliders 103, the first ball-and-socket joint, and the extendable L-shaped rod 104 in order to collaboratively adjust the leg’s positioning to meet predefined test angles and ensure alignment with standard hamstring assessment protocols. All detected metrics, including range of motion, thermal response, and alignment data are compiled by the microcontroller into a detailed muscle health report. This report is securely stored and updated within a user-specific profile in the onboard database, enabling progress tracking over time and facilitating personalized recovery and training regimens based on precise historical data.

[0041] Post-assessment, the microcontroller transmits the test results to the computing unit accessed by the user. These results include detailed data such as hamstring flexibility range, muscular response metrics, strength evaluation, thermal anomalies, and muscle activation patterns, for allowing the user to review data in real time, receive visual guidance for corrective postures, and access exercise recommendations.

[0042] A vertical platform 109 is installed with an inner rear wall of the housing 101 and arranged with a pair of horizontal rollers 110, each by means of a vertical motorized slider 119. In case the user wants to perform a glute-ham raise exercise, the user is required to provide input commands via the computing unit, based on the user input command, the microcontroller actuates the slider 119 to adjust the height of the rollers 110 to match the user’s leg length. This adjustment is controlled by the microcontroller, which references stored user profile data to accommodate anatomical variations.

[0043] The motorized slider 119 used herein consists of a sliding-rail and multiple rolling members which are integrated with a step motor. On actuation, the step motor rotates the rolling members in order to provide rolling motion to the members which results in sliding of the members and provide translation to the rollers 110 along the slider 119 in order to match the user’s leg length. Once the rollers 110 are positioned at suitable height, the user is required to access the rollers 110 to securely fix the posterior lower legs, such as the Achilles and calf region, in between the rollers 110. These rollers 110 help maintain lower limb alignment and offer stability during the motion of the glute-ham raise.

[0044] Simultaneously, the user is required to access a semi-cylindrical cushion 111 positioned anteriorly relative to the vertical platform 109 and mounted on a vertically actuated hydraulic pole 112. The cushion 111 supports the knees of the user, promoting biomechanical accuracy and reducing pressure on sensitive joints during the glute-ham raise exercise. The microcontroller extend/retract the hydraulic pole 112 to dynamically adjusts the height of the cushion 111 in response to real-time posture analysis, as monitored by the imaging unit 107, or depending on the user height, leg length, and knee positioning requirements.

[0045] The extension/ retraction of the hydraulic pole 112 is powered by a hydraulic unit associated with the system which includes an oil pump, oil cylinders, oil valves and piston which works in collaboration to aid in extension and retraction of the pole 112. The hydraulic unit operates by converting hydraulic pressure into mechanical motion. The unit consists of a cylinder with a piston inside, connected to a piston rod. On actuation, hydraulic fluid is pumped into one side of the cylinder, it pushes the piston, causing the piston rod to extend and generate linear motion. Conversely, when fluid is pumped into the other side of the cylinder, it retracts the piston rod. By controlling the flow and pressure of hydraulic fluid, the hydraulic pole 112 extend/retract to regulate height of the cushion 111 for personalized comfort and form alignment.

[0046] A motorized staircase assembly 120 is integrated with the cushion 111 structure and positioned in proximity to the base of the vertical platform 109. This staircase is configured to be vertically adjustable, enabling it to raise or lower in alignment with the cushion 111 and rollers 110 to provide seamless access for users. The adjustable stairs facilitate ease of mounting, particularly for users with limited mobility, reduced flexibility, or varying leg lengths.

[0047] The microcontroller, based on user input via the computing unit or by automatically fetching stored user data, including height and previous usage patterns from the database, actuates the staircase assembly 120 to calibrate the staircase height to assist the user in comfortably mounting and aligning with the cushion 111 and rollers 110. The staircase assembly 120 used herein consist of a motor unit, telescopic supports or scissor-lift arrangement, structural staircase steps, and guide rails. Upon actuation, the motor drives the lifting arrangement, either by rotating a lead screw, powering a hydraulic piston, or actuating a scissor linkage, causing the staircase to extend upward or retract downward to provide precise movement and stop the motor once the desired position is reached, in order to ensure easy accessibility of cushion 111 and rollers 110 for user of varying heights and physical capabilities.

[0048] A horizontal bar 113 is positioned adjacent to the vertical platform 109 and is operatively connected to a hydraulic piston via a second motorized ball-and-socket joint. Once the user has properly positioned the lower legs between the rollers 110 and attained the desired posture over the cushion 111, the user is required to access a safety harness 114 secured to the free end of the horizontal bar 113, and wear the harness 114 across the shoulders and torso to stabilize the upper body during the exercise, preventing unwanted torso movement or strain on the spine.

[0049] Once the harness 114 is worn by the user, as detected by the imaging unit 107, the microcontroller actuates the hydraulic piston in synchronization with the second motorized ball-and-socket joint for providing multi-directional flexibility and precise adjustment of the bar 113 orientation and resistance path, tailored to the user's physical requirements. The hydraulic piston provides modulated resistance during the execution of the glute-ham raise motion, enabling users to engage in progressive overload training, and the ball-and-socket joint further ensures that the bar 113 is able to be dynamically repositioned for optimal alignment with the user’s upper body mechanics. As the user performs the glute-ham raise, the harness 114 distributes the counterforce generated by the hydraulic piston evenly across the user’s upper body, creating a smooth, controlled resistance experience.

[0050] The resistance offered by the hydraulic piston is continuously regulated by the microcontroller. During the early stages of rehabilitation or for users with limited muscular strength, the piston is configured to provide minimal resistance, facilitating a safe and manageable range of motion. This low-load setting ensures that the user's hamstring muscles are activated gently, minimizing the risk of overexertion or injury. The microcontroller monitors user interaction and progress in real time and adjusts the hydraulic pressure accordingly.

[0051] As the user continues with regular sessions, the microcontroller references data stored in the user's profile, including strength assessment history, recovery progress, and physician inputs. Using this data, the microcontroller progressively increases the resistance level delivered by the hydraulic piston to support gradual muscle strengthening. This intelligent resistance modulation ensures a personalized rehabilitation experience, allowing users to develop muscle endurance and power at a pace aligned with their recovery capacity.

[0052] A chair-shaped structure 115 is provided inside the housing 101 and is ergonomically designed to support the user in a comfortable seated position after completing exercise routines or assessments. The chair features contoured back support and cushioning elements to reduce post-exercise strain and facilitate relaxation. A semi-cylindrical shell 116 is integrated at the forward edge of the chair, specifically shaped to enclose and cradle the upper contour of the user’s legs while seating over the structure 115. The shell 116 design ensures optimal surface contact with the hamstring region.

[0053] Multiple hollow massage patches 117 are strategically embedded within the inner surface of the semi-cylindrical leg shell 116 to ensure full contact with the upper leg region of the user, particularly targeting the hamstring muscles. Once the user is properly seated over the structure 115 with the legs positioned within the shell 116, as detected by the imaging unit 107, the microcontroller actuates an air inflator unit provided with the structure 115 and connected to the patches, to inflate and deflate the patches in synchrony to deliver consistent pressure and motion across muscle groups, mimicking a kneading massage technique. This inflation-deflation sequence stimulates circulation and relieves muscle stiffness after exercise or rehabilitation routines.

[0054] The air inflator unit used herein consist of an air pump (diaphragm or piston type), solenoid valves, pressure sensors, and an air reservoir. Upon actuation, the air pump draws ambient air and directs it toward the massage patches 117 via conduits. The solenoid valves regulate the airflow to specific patches, enabling targeted inflation. Pressure sensors monitor the air level to maintain user comfort and avoid over-inflation. The microcontroller coordinates inflation/deflation cycles based on pre-set massage programs or user preferences. Upon deflation, air is released through exhaust valves, allowing the patches to relax and reset for the next cycle.

[0055] During the massage, multiple EMG (Electromyography) sensors embedded within the massage patches 117, continuously monitor real-time electrical activity of hamstring muscles. The EMG sensors detect variations in muscle activation patterns, fatigue levels, and localized tension, which serve as biofeedback indicators for evaluating muscle condition following exercise or rehabilitation tasks. The EMG sensors comprises of multiple electrodes and an amplifier. The electrodes are placed on the skin over target muscles where they capture the electrical signals produced by muscle fibers. The amplifier then boosts these signals for better clarity and transfer to the linked microcontroller for processing.

[0056] Upon receiving EMG data, the microcontroller dynamically adjusts the inflation intensity, duration, and massage sequence of the hollow massage patches 117 in alignment with the detected muscle state. For example, if elevated muscle tension or localized fatigue is detected, the microcontroller initiates a deeper, slower massage cycle to promote relaxation and recovery. Conversely, areas showing minimal fatigue receive lighter stimulation to maintain circulation.

[0057] Further, the microcontroller activates atleast one Peltier unit thermoelectrically coupled with the inner surface of shell 116 to provide precise, localized thermal regulation over the hamstring region of the user, offering both heating and cooling modes depending on post-exercise muscle condition or user preference. The heating mode aids in relieving stiffness, improving blood circulation, and promoting muscle relaxation, while the cooling mode is utilized to reduce inflammation, numb soreness, and assist in managing post-exertional strain or micro-tears in the muscle tissue.

[0058] The microcontroller governs the Peltier unit based on real-time physiological inputs and user profile data stored in the onboard database. For example, if the thermal imaging data or the data received from EMG sensors indicates elevated muscle fatigue or heat due to inflammation, the microcontroller automatically activate the cooling mode to counteract thermal stress.

[0059] The Peltier unit operates based on the thermoelectric effect to deliver selective heating or cooling depending on the direction of electric current. The Peltier unit used herein comprises a thermoelectric module (Peltier chip), heat sinks, a fan, and temperature sensors. When voltage is applied, heat is transferred from one side of the Peltier chip to the other, making one surface cool and the opposite surface warm. The heat sink and fan are attached to the hot side to dissipate excess heat efficiently. The microcontroller monitors temperature via sensors and adjusts the current to maintain desired thermal conditions of the hamstring region of user.

[0060] Simultaneously, the microcontroller activates multiple electrode patches 118 affixed to the inner surface of the shell 116, to deliver low-frequency electrical stimulation pulses to the targeted hamstring muscles. The stimulation induces controlled, rhythmic muscle contractions, which help improve local blood circulation, enhance metabolic activity, and reduce muscle soreness. The electrical stimulation delivered by the electrode patches 118 is regulated by the microcontroller based on real-time response obtained from the EMG sensors and user-specific data stored in the database. Depending on the level of detected muscle tension or recovery phase, the stimulation frequency and intensity is dynamically adjusted to suit individual requirements.

[0061] The electrode patches 118 deliver electrical stimulation pulses to the hamstring muscles using a setup comprising conductive gel pads, embedded electrodes, connecting wires, and a pulse generator. When activated, the pulse generator sends controlled electrical impulses through the electrodes, which pass through the skin and stimulate underlying muscle fibers. The conductive gel ensures low-resistance contact between the electrodes and skin. These pulses mimic natural nerve signals, causing the muscles to contract and relax, which aids in muscle activation, enhanced circulation, accelerated tissue repair, and passive rehabilitation.

[0062] During the muscle assessment and strengthening, the microcontroller activates an audio unit 121 embedded within the housing 101 to emit alerts, exercise prompts, or progress notifications to guide the user and ensure safety during use. The audio unit 121 comprises a speaker, audio processor, memory module, and wireless communication interface. Upon receiving control signals from the microcontroller, the audio processor retrieves pre-stored or real-time generated audio cues from the memory module and outputs them through the speaker. These cues include but not limited to start/stop signals, corrective instructions, or motivational prompts based on the user’s activity data or progress. This ensures the user remains informed and engaged, while reducing the risk of incorrect or unsafe movement during exercise.

[0063] Lastly, a battery is installed within the housing 101 which is connected to the microcontroller that supplies current to all the electrically powered components associated with the system, that needs an amount of electric power to perform their functions and operation in an efficient manner. The battery utilized here, is generally a dry battery which is made up of Lithium-ion material that gives the system a long-lasting as well as an efficient DC (Direct Current) current which helps every component to function properly in an efficient manner.

[0064] The present invention works best in the following manner, where the system as disclosed in the invention is accessed by the user through the computing unit to create the user profile by entering personal and medical information. The user is required to get positioned on the bed assembly 102, where the imaging unit 107 and the thermal camera 108 continuously capture real-time data related to leg position, angle, and temperature. Based on this input, the microcontroller regulates the motorized sliders 103, the L-shaped rod 104, and the first motorized ball-and-socket joint to accurately lift and position the user’s leg for hamstring flexibility assessment. The holographic projection unit 106 guides the user through test movements by displaying precise visual cues. The microcontroller evaluates muscle health using data from the thermal camera 108 and imaging unit 107 and generates the report that is stored in the database. For strengthening, the microcontroller dynamically adjusts the cushion 111 height using the hydraulic pole 112 and regulates resistance through the piston linked to the safety harness 114. During post-exercise recovery, the user sits on the chair-shaped structure 115, where the massage patches 117 operate under the control of the air inflator unit. The EMG sensors, Peltier unit, and electrode patches 118 are further coordinated by the microcontroller to optimize recovery and muscle rehabilitation.

[0065] Although the field of the invention has been described herein with limited reference to specific embodiments, this description is not meant to be construed in a limiting sense. Various modifications of the disclosed embodiments, as well as alternate embodiments of the invention, will become apparent to persons skilled in the art upon reference to the description of the invention. , Claims:1) A hamstring muscle assessment and strengthening system, comprising:

i) a housing 101 associated with said system configured to be accessed by user(s) for performing hamstring muscle assessment and enhancement, wherein a communication module is integrated within a microcontroller associated with said system for establishing a wireless connection between said microcontroller and a computing unit that is accessed by a user to provide personal and medical information as input into a user profile of said user, created in an onboard database;
ii) a bed assembly 102 internally arranged within said housing 101, designed to conduct a hamstring flexibility and strength test, a pair of motorized sliders 103 disposed on opposite lateral sides of said bed, said sliders 103 supporting an extendable L-shaped rod 104 terminating in a support plate 105, wherein said plate 105 is operably mounted via a first motorized ball-and-socket joint for lifting, positioning, and holding leg of said user during said test;
iii) a holographic projection unit 106 configured on inside said housing 101, operable to project real-time visual guidance to assist said user in positioning their leg at predefined test angles, wherein an artificial intelligence-based imaging unit 107 and a thermal imaging camera 108, both integrated within said housing 101, detect leg position and angle during movement, along with detecting muscle temperature variations indicative of strain or inflammation;
iv) said microcontroller based on real-time feedback from said imaging unit 107 and thermal camera 108 regulates actuation of said sliders 103, first ball-and-socket joint and rod 104 to ensure accurate leg positioning and generate a comprehensive muscle health report, that is further updated against a user profile on said database for reference;
v) a vertical platform 109 installed with an inner rear wall of said housing 101 and installed with a pair of horizontal rollers 110, said rollers 110 being adapted to receive and grip lower legs of said user during a glute-ham raise exercise, wherein a semi-cylindrical cushion 111 is positioned anteriorly relative to said vertical platform 109 and mounted on a vertically actuated hydraulic pole 112, said cushion 111 configured to support knees of said user during exercise, and said pole 112 is dynamically adjusted by said microcontroller to regulate height of said cushion 111 for tailored comfort and form alignment;
vi) a horizontal bar 113 disposed adjacent to said vertical platform 109, said bar 113 being operatively coupled to a hydraulic piston through a second motorized ball-and-socket joint, wherein a safety harness 114 is secured to said horizontal bar 113 and adapted to be worn by said user, said harness 114 configured to stabilize upper body of said user and transfer controlled resistance from said piston to said user during the glute-ham raise motion;
vii) a chair-shaped structure 115 provided inside said housing 101 ergonomically structured to support said user in a seated position post-exercise, said chair being integrated with a semi-cylindrical shell 116 positioned at forward edge configured to enclose upper contour of user’s leg, wherein plurality of hollow massage patches 117 are embedded within said leg shell 116, configured to inflate and deflate in synchrony under control of an air inflator unit provided with said structure 115 to provide massaging sensation over said legs;
viii) a plurality of EMG (Electromyography) sensors embedded within said massage patches 117 to continuously monitor real-time electrical activity of hamstring muscles during massage, wherein said sensors communicate with said microcontroller to dynamically adjust said massage intensity in alignment with detected muscle fatigue or tension levels, thereby enhancing post-exercise muscle recovery; and
ix) at least one Peltier unit thermoelectrically coupled with shell 116 delivers selective heating or cooling to said hamstring region of user, wherein plurality of electrode patches 118 are affixed to said shell 116, said patches being configured to deliver electrical stimulation pulses to said hamstring muscles, inducing controlled muscle contractions for enhanced circulation, accelerated tissue repair, and passive rehabilitation.

2) The system as claimed in claim 1, wherein said hamstring flexibility and strength evaluation includes but not limited to a 90-90 test.

3) The system as claimed in claim 1, wherein a vertical motorized slider 119 is connected to said vertical platform 109, said slider 119 enabling vertical displacement of said rollers 110 to accommodate user(s) with varying leg lengths and statures, thereby optimizing ergonomic alignment during said exercise.

4) The system as claimed in claim 1, wherein a motorized staircase assembly 120 is integrated with said cushion 111, said staircase being vertically adjustable to assist the user in comfortably mounting and aligning with said cushion 111 and rollers 110, said staircase being operable via said microcontroller to ensure accessibility for user of varying heights and physical capabilities.

5) The system as claimed in claim 1, wherein said hydraulic piston is configured to provide minimal resistance during early rehabilitation stages and progressively increase resistance as determined by said system’s microcontroller and database-stored user profile, thereby enabling customized strength progression and safe rehabilitation of said user’s hamstring muscles.

6) The system as claimed in claim 1, wherein said housing 101 includes an audio unit 121 embedded within said housing 101, said audio unit 121 emits alerts, exercise prompts, or progress notifications to guide said user and ensure safety during use.

7) The system as claimed in claim 1, wherein said microcontroller displays test results on said computing unit for user-interaction, storing progress reports in said database for long-term patient tracking.

Documents

Application Documents

# Name Date
1 202521040541-STATEMENT OF UNDERTAKING (FORM 3) [26-04-2025(online)].pdf 2025-04-26
2 202521040541-REQUEST FOR EXAMINATION (FORM-18) [26-04-2025(online)].pdf 2025-04-26
3 202521040541-REQUEST FOR EARLY PUBLICATION(FORM-9) [26-04-2025(online)].pdf 2025-04-26
4 202521040541-PROOF OF RIGHT [26-04-2025(online)].pdf 2025-04-26
5 202521040541-POWER OF AUTHORITY [26-04-2025(online)].pdf 2025-04-26
6 202521040541-FORM-9 [26-04-2025(online)].pdf 2025-04-26
7 202521040541-FORM FOR SMALL ENTITY(FORM-28) [26-04-2025(online)].pdf 2025-04-26
8 202521040541-FORM 18 [26-04-2025(online)].pdf 2025-04-26
9 202521040541-FORM 1 [26-04-2025(online)].pdf 2025-04-26
10 202521040541-FIGURE OF ABSTRACT [26-04-2025(online)].pdf 2025-04-26
11 202521040541-EVIDENCE FOR REGISTRATION UNDER SSI(FORM-28) [26-04-2025(online)].pdf 2025-04-26
12 202521040541-EVIDENCE FOR REGISTRATION UNDER SSI [26-04-2025(online)].pdf 2025-04-26
13 202521040541-EDUCATIONAL INSTITUTION(S) [26-04-2025(online)].pdf 2025-04-26
14 202521040541-DRAWINGS [26-04-2025(online)].pdf 2025-04-26
15 202521040541-DECLARATION OF INVENTORSHIP (FORM 5) [26-04-2025(online)].pdf 2025-04-26
16 202521040541-COMPLETE SPECIFICATION [26-04-2025(online)].pdf 2025-04-26
17 Abstract.jpg 2025-05-14
18 202521040541-FORM-26 [03-06-2025(online)].pdf 2025-06-03