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FOOT-MOUNTED SENSOR SYSTEMS FOR TRACKING BODY MOVEMENT

  • US 20150359457A1
  • Filed: 06/17/2015
  • Published: 12/17/2015
  • Est. Priority Date: 12/17/2012
  • Status: Active Grant
First Claim
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1. A method of determining two or more characteristics of an activity performed by a subject, comprising:

  • (a) providing a sensor system, comprising;

    two separate foot sensor subsystems, each comprisingtwo or more force sensitive resistors configured to measure a force at two or more predetermined anatomical locations on a foot,at least one sensor device selected from the group consisting of an accelerometer and a gyroscope, anda clock configured to generate time stamped device data for each sensor device that includes a relative time that the device data was generated, wherein each clock is synchronized by communication with a master device,wherein each of the foot sensor subsystems is configured to be coupled to a separate foot of the subject; and

    a data processor system in communication with both of the foot sensor subsystems and located separate from at least one of the foot sensor subsystems;

    (b) generating time stamped activity data during the activity for each foot sensor subsystem based on the time stamped device data output;

    (c) communicating the time stamped activity data for each foot sensor subsystem to the data processor system;

    (d) correlating the time stamped activity data from each foot sensor subsystem to provide correlated activity data using the data processor system; and

    (e) using the correlated activity data using the data processor system to determine two or more characteristics of the activity of the subject selected from the group consisting of balance, weight distribution across a foot, total weight applied to the foot, partial weight applied to the foot, foot movement, foot rotation, foot orientation, distance traveled, foot elevation, foot temperature, localized pressure on the foot, foot acceleration, foot speed, and dynamic load motion during foot movement.

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