Continuous foot-strike measuring system and method
First Claim
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1. A foot-strike measuring system comprising:
- a first and a second plate arranged in tandem with respect to the direction of travel of a subject on said system;
first and second sensor means for sensing forces on a respective plate;
means for determining from said first and second sensor means whether a single foot is on both plates or one foot is on each plate; and
processing means for combining signals from said first and second sensor means when one foot on both plates is determined and segregating said signals from said first and second sensor means when one foot on each plate is determined to measure individual foot-strikes.
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Abstract
A foot-strike measuring system and method using a pair of tandem plates each having at least two sensors along the direction of travel for measuring force. By monitoring the signals on the sensors at the adjacent edges and comparing with those on the nonadjacent sensors, the system determines whether one foot is on both plates or one foot is on each plate. This allows collecting and tracking sensor signals for each foot separately. Center of pressure is also calculated using the speed of the treadmill.
104 Citations
12 Claims
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1. A foot-strike measuring system comprising:
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a first and a second plate arranged in tandem with respect to the direction of travel of a subject on said system; first and second sensor means for sensing forces on a respective plate; means for determining from said first and second sensor means whether a single foot is on both plates or one foot is on each plate; and processing means for combining signals from said first and second sensor means when one foot on both plates is determined and segregating said signals from said first and second sensor means when one foot on each plate is determined to measure individual foot-strikes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of individually processing signals of consecutive foot-strikes in a system having two force plates in tandem along a direction of travel and a first and a second sensor means for a respective plate, comprising:
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determining from said first and second sensor means whether the force on said two plates are nearer adjacent or non-adjacent edges of said plates along said direction of travel; and combining said signals from said first and second sensor means for a single foot-strike when the force is determined to be nearer to adjacent edges and segregating said signals from said first and second sensor means as a pair of foot-strikes when the force is determined to be near to non-adjacent edges.
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Specification