Patent ID: 8805641
Filing Date: 2014-08-12
Classification: A61B,G01P,G16H

Abstract:
1. A method comprising: obtaining, at a processor, a plurality of adaptive thresholds whose values change based on angular velocity data from a plurality of shank mounted kinematic sensors, wherein the plurality of adaptive thresholds defines a likely range of a plurality of heel-strike points and toe-off points in the angular velocity data; detecting, at the processor, the plurality of heel-strike points and toe-off points based on the angular velocity data and based on the plurality of adaptive thresholds; obtaining, at the processor, a first parameter based on a timed up and go (TUG) time segment, wherein the TUG time segment is determined based on the plurality of heel-strike points and toe-off points, and wherein the TUG time segment comprises at least one of a walk time, a turn time, a return time, a single support percentage, a step time, a walk-time ratio, or a swing time, wherein the walk time identifies an amount of time between a first step and a last step of a TUG test, wherein the turn time identifies an amount of time between the first step and a turn step of the TUG test, and wherein the return time identifies an amount of time between the turn step and the last step of the TUG test; obtaining, at the processor, a second parameter based on a derived parameter, the derived parameter being determined based on the angular velocity data, wherein the derived parameter includes at least one of a temporal gait parameter or an angular velocity-based parameter; and generating, at the processor, a falls risk assessment based on at least one of the first parameter or second parameter.