Title
Segmentation of gait cycles using foot-mounted 3D accelerometers
Abstract
We describe a new gait segmentation method based on the continuous wavelet transform to identify stride-by-stride gait cycles from measurements of foot-mounted three-dimensional (3D) accelerometers. The detection of such gait cycles is indeed a crucial step for an accurate extraction of relevant gait events such as heel strike, toe strike, heel-off, and toe-off. We demonstrate the ability of this segmentation method, used in conjunction with a validated extraction algorithm, to calculate the following gait (duration) parameters for each gait cycle during the gait of a healthy young subject and of an elderly subject with Parkinson's disease (PD) in OFF and ON states: durations of (1) loading response, (2) mid-stance, (3) push-off, (4) stance, (5) swing, (6) stride, (7) step, and (8) double support phases. The experimental results show that the proposed method can extract relevant refined gait parameters to quantify subtle gait disturbances in subjects with PD.
Year
DOI
Venue
2015
10.1109/IC3D.2015.7391836
2015 International Conference on 3D Imaging (IC3D)
Keywords
Field
DocType
3D,segmentation of gait cycles,biomedical signal processing,gait analysis,accelerometers,Parkinson's disease
Computer vision,Gait,STRIDE,Accelerometer,Computer science,Effect of gait parameters on energetic cost,Continuous wavelet transform,Heel,Gait analysis,Artificial intelligence,Gait Disturbance
Conference
ISSN
Citations 
PageRank 
2379-1772
1
0.41
References 
Authors
8
7