# US 11,992,729 B2 · Measuring a pull force on an exercise band > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,992,729 B2 - Document ID: US11992729B2 - Status: Granted - Kind: B2 - Application number: 18/353,643 - Filed: 2023-07-17 - Published: 2023-11-09 - Granted: 2024-05-28 - Earliest claimed: 2020-05-06 - Assignees: Pt Genie, LLC - Applicants: PT Genie, LLC - Inventors: Reuben Gobezie; Laurence D. Higgins - Web page: https://patentgrep.com/patent/US11992729B2 ## CPC - A63B 24/0062: {Monitoring athletic performances, e.g. for determining the work of a user on an exercise apparatus, the completed jogging or cycling distance} - A63B 21/0552: {Elastic ropes or bands} - A63B 71/0622: {Visual, audio or audio-visual systems for entertaining, instructing or motivating the user} - G06V 40/23: {Recognition of whole body movements, e.g. for sport training} - G09B 19/0038: {Sports} - A63B 2024/0065: {Evaluating the fitness, e.g. fitness level or fitness index} - A63B 2071/0647: {Visualisation of executed movements} - A63B 2071/0655: {Tactile feedback} - A63B 2220/16: Angular positions - A63B 2220/17: Counting, e.g. counting periodical movements, revolutions or cycles, or including further data processing to determine distances or speed - A63B 2220/40: Acceleration - A63B 2220/51: Force - A63B 2220/805: Optical or opto-electronic sensors - A63B 2220/806: Video cameras - A63B 2220/836: Sensors arranged on the body of the user - A63B 2225/20: with means for remote communication, e.g. internet or the like - A63B 2230/06: heartbeat rate only - A63B 2230/30: blood pressure (A63B2230/04 takes precedence) - A63B: APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT (apparatus for passive exercising, massage A61H) - G06V: IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING - G09B: EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS (devices for psychotechnics or for testing reaction times A61B5/16; games, sports, amusements A63; projectors, projector screens G03B) ## Abstract A patient can undergo physical therapy to rehabilitate a musculoskeletal condition. The success of the rehabilitation relies in part on whether the patient uses an exercise band with the correct resistance for their condition. In order to select the correct resistance, a controller can instruct the patient to perform a directed movement with an exercise band, receive exercise data from at least one sensor (e.g., a camera, like a front-facing camera, that records the patient, a plurality of sensors on or near the patient's skin, etc.) as the subject performs the directed movement, and calculate a pull force exerted by the patient on the exercise band based on at least a portion of the exercise data. The adequacy of an exercise with the exercise band for the patient is determined based on the pull force can be determined based on the calculated pull force. ## Claims ### Claim 1 A system comprising: an optical sensor configured to record motion of a subject and transmit a recording of the motion; a display adapted to present audio and/or visual directions to the subject related to a directed movement; and a controller comprising: a non-transitory memory storing instructions; and a processor to execute the instructions stored in the memory to at least: instruct the subject, via the display, to perform the directed movement; receive the recording of the motion from the optical sensor as the subject performs the directed movement and determine exercise data from the recording of the motion; and calculate a pull force of the subject for the directed movement based on at least a portion of the exercise data to determine an adequacy of the directed movement for the subject based on the pull force, wherein when the directed movement is determined to be inadequate, instruct the subject, via the display, to alter the directed movement. ### Claim 2 (depends on 1) The system of claim 1, wherein the subject is instructed, via the display, to perform the directed movement as a routine of a plurality of directed movements. ### Claim 3 (depends on 1) The system of claim 1, wherein the display shows an animated figure completing the directed movement. ### Claim 4 (depends on 1) The system of claim 1, wherein the system further comprises: at least one sensor adapted to be placed on or near a subject's skin and configured to record the motion of the subject and transmit additional exercise data when the subject performs the directed movement, wherein the additional exercise data is used to calculate the pull force. ### Claim 5 (depends on 4) The system of claim 4, wherein the at least one sensor comprises: a first sensor adapted to be placed on a sternum of a subject; a second sensor adapted to be placed proximal to a joint of the subject; and a third sensor adapted to be placed distal to the joint of the subject. ### Claim 6 (depends on 4) The system of claim 4, wherein the at least one sensor comprises an at least one of an inertial sensor, comprising an accelerometer, a gyroscope, and/or a magnetometer, and an optical sensor. ### Claim 7 (depends on 4) The system of claim 4, wherein the at least one sensor further comprises a haptic motor that provides an alert when the subject moves out of range of the directed movement. ### Claim 8 (depends on 1) The system of claim 1, wherein the optical sensor comprises a camera facing the subject at a predetermined distance from the subject. ### Claim 9 (depends on 1) The system of claim 1, wherein the exercise data comprises position data, rotation data, and movement data. ### Claim 10 (depends on 1) The system of claim 1, wherein the processor further executes instructions to: direct the subject to repeat the directed movement for a set number of times; aggregate force measurement calculations for the set number of movements; determine the average pull force of the subject during the directed movement; and transmit to a healthcare provider the average pull force, an average range of motion, a number of completed repetitions, and a pain level of the subject. ### Claim 11 A method comprising: instructing, by a controller comprising a processer via a display device, a subject to perform a directed movement, wherein the display device is adapted to present audio and/or visual directions to the subject related to the directed movement; receiving, by the controller, a recording of motion of the subject recorded by an optical sensor as the subject performs the directed movement; determining, by the controller, exercise data from the recording of the motion of the subject; calculating, by the controller, a pull force of the subject during the directed movement based on at least a portion of the exercise data; determining, by the controller, an adequacy of the directed movement for the subject based on the pull force; and when the directed movement is determined to be inadequate, instructing, via the display device, the subject to alter the directed movement. ### Claim 12 (depends on 11) The method of claim 11, further comprising: directing, by the controller and the display, the subject to repeat the movement for a set number of times; aggregating, by the controller, force measurement calculations for the set number of movements; and determining, by the controller, the average pull force of the subject. ### Claim 13 (depends on 12) The method of claim 12, further comprising: transmitting, by the controller, to a healthcare provider at least one of the average pull force, an average range of motion, a number of completed repetitions, and pain level of the subject. ### Claim 14 (depends on 11) The method of claim 11, wherein the display shows an animated figure completing the directed movement. ### Claim 15 (depends on 11) The method of claim 11, further comprises: receiving, by the controller, additional exercise data from at least one sensor situated on or near the subject's skin and configured to transmit the additional exercise data when the subject performs the directed movement, wherein the additional exercise data is used to calculate the pull force. ### Claim 16 (depends on 15) The method of claim 15, further comprising: instructing, by the controller, the subject to place the at least one sensor in a location on or near the subject's skin, wherein when the at least one sensor is a plurality of sensors the locations comprise: a first sensor adapted to be placed on a sternum of a subject; a second sensor adapted to be placed proximal to a joint of the subject; and a third sensor adapted to be placed distal to the joint of the subject. ### Claim 17 (depends on 15) The method of claim 15, wherein the at least one sensor comprises at least one of an inertial sensor, comprising an accelerometer, a gyroscope, and/or a magnetometer, and an optical sensor. ### Claim 18 (depends on 11) The method of claim 11, wherein the exercise data comprises position data, rotation data, and movement data of each of the plurality of sensors. ### Claim 19 (depends on 11) The method of claim 11, wherein calculating the pull force further comprises: determining a first position of at least a portion of the subject when the subject starts the directed movement; determining a second position of the at least the portion of the subject when the subject completes the directed movement; determining an angle of motion and a change in position between the first location and the second location; and calculating the pull force based on at least the change in position and the angle of motion. ### Claim 20 (depends on 11) The method of claim 11, further comprising: communicating, by the controller, a subject specific plan of care to rehabilitate a joint comprising of a plurality of directed movements; or notifying, by the controller, a health care provider that the directed movement performed by the subject is inadequate.