GAIT ANALYSIS
First Claim
1. A method of analysing gait including measuring a signal representative of acceleration of the head of a subject whose gait is to be analysed, and applying a transform to the measured signal to compute a gait signature representative of the gait of the subject.
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Accused Products
Abstract
A method and system for analysing gait patterns of a subject by measuring head acceleration in vertical direction. The system comprises an accelerometer mounted on the head of the subject. The analysis includes calculating a signature from the acceleration data, using a Fourier transform, including energy of the first harmonics and comparing the signature with the baseline signature. Baseline signature is a representative of previously stored signatures. The comparison is done in order to monitor changes in the gait signatures over time. The entropy of the signatures may be used to perform the comparison. A self organised map is used to classify the measured gait signals.
172 Citations
20 Claims
- 1. A method of analysing gait including measuring a signal representative of acceleration of the head of a subject whose gait is to be analysed, and applying a transform to the measured signal to compute a gait signature representative of the gait of the subject.
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10. A gait analysis system including an acceleration sensor mounted in a sensor housing which is adapted to be secured to the head of a human:
- and an analyser operatively coupled to a sensor and operable to receive an output representative of head acceleration therefrom, and to apply a transform thereto for computing a gait signature representative of a gait pattern.
- View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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