METHOD AND SYSTEM TO IDENTIFY FRAILTY USING BODY MOVEMENT
First Claim
1. A method for determining frailty of a person, the method comprising:
- receiving one or more signals generated by at least one movement sensor configured to measure the movement of a limb of a person;
with processing electronics comprising digital logic circuitry, processing sensor data derived from the one or more signals of the at least one movement sensor to determine a first variable associated with movement of the limb of the person; and
based at least in part on the first variable, generating information usable to determine frailty of the person.
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Accused Products
Abstract
Systems and methods are disclosed which provide a way to diagnose frailty using an upper extremity (and/or other body portions) frailty assessment. Within this method, several parameters can be calculated based on the kinematics (e.g., pure motion without including forces) and kinetics (e.g., analysis of forces and moments) of, for example, joint flexion/extension. An ordinal and/or continuous frailty score can be determined based on calculated markers of frailty, such as slowness, weakness, flexibility, and/or exhaustion, while performing a short-duration upper extremity task. Patients can be classified as non-frail, pre-frail, or frail.
31 Citations
49 Claims
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1. A method for determining frailty of a person, the method comprising:
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receiving one or more signals generated by at least one movement sensor configured to measure the movement of a limb of a person; with processing electronics comprising digital logic circuitry, processing sensor data derived from the one or more signals of the at least one movement sensor to determine a first variable associated with movement of the limb of the person; and based at least in part on the first variable, generating information usable to determine frailty of the person. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 18, 19)
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16. The method of embodiment 15, wherein the first sensor measures movement of the limb when supported on the limb and measures movement of the other limb when supported on the other limb.
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17. The method of embodiment 14, wherein the at least one movement sensor includes first and second sensors, the first sensor measuring movement of the limb of the person and the second sensor measuring movement of the other limb of the person.
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20. A method for determining frailty of a person, the method comprising:
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receiving one or more signals generated by at least one electromyographic sensor supported at a position on the limb of a person; with processing electronics comprising digital logic circuitry, processing sensor data derived from the one or more signals of the at least one electromyographic sensor to determine at least one of a muscle fiber conductive velocity or a muscle activation pattern, the muscle fiber conductive velocity and the muscle activation pattern associated with movement of the limb of the person; and based at least in part on at least one of the muscle fiber conductive velocity or the muscle activation pattern, generating information usable to determine frailty of the person. - View Dependent Claims (21, 22)
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23. A frailty determination system, the system comprising:
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at least one movement sensor configured to generate one or more signals; and processing electronics in communication with the at least one movement sensor configured to measure the movement of a limb of a person and comprising digital logic circuitry, the processing electronics configured to; process sensor data derived from the one or more signals according to a frailty analysis algorithm; based at least in part on the results of the processing of the sensor data, determine a first variable associated with movement of the limb of the person; and based at least in part on the first variable, generate information usable to determine frailty of the person. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 39, 40)
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38. The system of embodiment 36, wherein the at least one movement sensor includes a first sensor and a second sensor, the first sensor configured to measure the movement of the limb and the second sensor configured to measure the movement of the other limb.
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41. A frailty determination system, the system comprising:
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at least one electromyographic sensor configured to generate one or more signals, and processing electronics in communication with the at least one electromyographic sensor, wherein the processing electronics are further configured to; process sensor data derived from the one or more signals of the at least one electromyographic sensor according to a frailty analysis algorithm, wherein the sensor data of the at least one electromyographic sensor is collected while the electromyographic sensor is supported on the limb of the person; and based at least in part on the results of the processing of the sensor data of the at least one electromyographic sensor, determine at least one of a muscle fiber conductive velocity or a muscle activation pattern, the muscle fiber conductive velocity and the muscle activation pattern associated with movement of the limb of the person; and based at least in part on at least one of the muscle fiber conductive velocity or the muscle activation pattern, generate information usable to determine frailty of the person. - View Dependent Claims (42, 43)
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44. Non-transitory computer storage that stores executable code that directs computer hardware to at least:
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process sensor data derived from one or more signals generated by at least one movement sensor according to a frailty analysis algorithm, wherein the frailty analysis algorithm is designed such that the sensor data is processed according to the frailty analysis algorithm using sensor data corresponding to the movement of a limb of a person; based at least in part on results of the processing of the sensor data, determine a first variable associated with movement of the limb of the person; and based at least in part on the first variable, generate information usable to determine frailty of the person. - View Dependent Claims (45, 46, 47, 48, 49)
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Specification