Detachable Wireless Motion System for Human Kinematic Analysis
First Claim
1. A detachable wireless measurement device capable of determining stride kinematics in each of a plurality of strides, comprising:
- a detachable receptacle which securely holds the kinematic sensor to the user'"'"'s footwear;
a kinematic sensor which is comprised of a three-axis accelerometer and a three-axis gyroscope;
said kinematic sensor calculating the orientation from the accelerometer and gyroscope readings, then further determining stride kinematic metrics.
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Abstract
A system for determining user kinematic characteristics includes a detachable motion sensor, a processing system, and a wireless transceiver. The motion sensor may be coupled with a user'"'"'s footwear in order to generate one or more signals corresponding to the motion of the user'"'"'s foot/feet. The processing system is in communication with the motion sensor and is programmed to use the one or more signals to determine one or more kinematic parameters. The present invention measures various parameters about each individual stride. The stride based kinematic characteristics may include, but are not limited to, pitch, roll, yaw, vertical position, horizontal position, horizontal velocity, vertical velocity, distance traveled, foot strike, foot strike classification, toe off, contact time, stride rate, stride length, rate of pronation, maximum pronation, rate of plantarflexion and dorsiflexion, swing velocity, and pitch-roll signature.
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Citations
23 Claims
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1. A detachable wireless measurement device capable of determining stride kinematics in each of a plurality of strides, comprising:
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a detachable receptacle which securely holds the kinematic sensor to the user'"'"'s footwear; a kinematic sensor which is comprised of a three-axis accelerometer and a three-axis gyroscope; said kinematic sensor calculating the orientation from the accelerometer and gyroscope readings, then further determining stride kinematic metrics. - View Dependent Claims (2, 3, 4, 5, 7, 8, 11, 15, 18, 23)
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- 6. A method of calculating a metric representing the intensity of a run (runScore) based on a set of kinematic metrics.
- 10. A method of comparing kinematic data from a number of shoes for purposes of proper footwear selection for a specific individual.
- 14. A method of tracking shoe wear using a plurality of kinematic metrics.
- 17. A method of aggregating data from a large population of users for the purpose of comparing kinematic metrics.
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22. A method for determining stride length, and thus the distance traveled, using the swing excursion of a user'"'"'s footwear.
Specification