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US 8,262,590 B2Granted
Gait/balance analyzer
OwnerWilliam V. Padulainventor
Life of this patent
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Abstract
An apparatus for analyzing gait and balance to determine visual spatial distortion including a treadmill having a movable tread, at least a weight bearing sensor for measuring weight bearing pressure in right, left, front and rear directions provided under said tread and an analyzer for analyzing lean coupled to output of said weight bearing sensor.
Claims5
A means for analyzing gait and balance to determine visual spatial distortion comprising:
- a treadmill having a movable tread;
- at least a weight bearing sensor for measuring weight bearing pressure in right, left, front and rear directions provided under said movable tread;
- and
- a means for analyzing lean coupled to output of said weight bearing sensor to determine visual midline shift from equation (1):
- (x2+y2+z2)/r2=1 Equation (1)
- wherein x, y and z are amount of lean in x, y, and z directions and r is a radius of a physiological egocenter.
3 more elements
A method of analyzing gait and balance to determine visual spatial distortion, comprising the steps of:
- providing a test subject walking on moving tread of a treadmill;
- measuring weight bearing pressure in right, left, front and rear directions by means of a weight bearing sensor provided under said moving tread;
- and
- analyzing lean from output of said weight bearing sensor to determine visual midline shift.
1 more element
Dependencies are inferred from the claim text.