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Systems and devices for motion tracking, assessment, and monitoring and methods of use thereof

  • US 10,123,751 B2
  • Filed: 04/13/2017
  • Issued: 11/13/2018
  • Est. Priority Date: 04/13/2016
  • Status: Active Grant
First Claim
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1. A system, comprising:

  • a wearable sensor unit configured to be worn by a person at one location on the person'"'"'s body, the wearable sensor unit including a plurality of sensors configured to record sensor data during an activity performed by the person, the sensor data comprising accelerometer data, gyroscope data, and magnetometer data;

    an analysis element configured to;

    receive the sensor data from the wearable sensor unit, the sensor data including sensor orientation data of the wearable sensor unit during the activity, the sensor orientation data including (a) yaw data of the wearable sensor unit, (b) pitch data of the wearable sensor unit, and (c) roll data of the wearable sensor unit,wherein the yaw data of the wearable sensor unit represents an orientation of the wearable sensor unit with respect to a yaw axis and with respect to a neutral orientation,wherein the pitch data of the wearable sensor unit represents an orientation of the wearable sensor unit with respect to a pitch axis and with respect to a neutral orientation, the pitch axis being perpendicular to the yaw axis, andwherein the roll data of the wearable sensor unit represents an angle of orientation of the wearable sensor unit with respect to a roll axis and with respect to a neutral orientation, the roll axis being perpendicular to the pitch axis and to the yaw axis,determine a neutral posture of the person based on the sensor data recorded while the person is moving, wherein the neutral posture of the person includes a neutral posture yaw value, a neutral posture pitch value, and a neutral posture roll value,translate, by a processor programmed with at least one matrix translation algorithm, the sensor orientation data of the wearable sensor unit to person orientation data of the person during the activity, the person orientation data including (a) yaw data of the person, (b) pitch data of the person, and (c) roll data of the person,wherein the yaw data of the person represents an orientation of the person with respect to the yaw axis and with respect to the neutral posture of the person,wherein the pitch data of the person represents an orientation of the person with respect to the pitch axis and with respect to the neutral posture of the person, andwherein the roll data of the person represents an orientation of the person with respect to the roll axis and with respect to the neutral posture of the person,determine, for the person during the activity, (a) a lift rate, (b) a maximum sagittal flexion, (c) an average twist velocity, (d) a maximum moment, and (e) a maximum lateral velocity based on at least (a) the yaw data of the person, (b) the pitch data of the person, and (c) the roll data of the person, anddetermine a score representative of an injury risk to the person during the activity based on (a) the lift rate, (b) the maximum sagittal flexion, (c) the average twist velocity, (d) the maximum moment, and (e) the maximum lateral velocity; and

    a tangible feedback element configured to provide at least one tangible feedback based on the score so as to reduce the injury risk, the at least one tangible feedback comprising at least one of (a) at least one haptic feedback, (b) at least one audible feedback, (c) at least one visible feedback, (d) at least one physical item to assist the person to perform the activity, and (e) at least one instruction to assist the person to perform the activity.

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