Title
Machine learning based detection of compensatory balance responses to lateral perturbation using wearable sensors
Abstract
Loss of balance is prevalent in the older population and also in people who have mobility impairment. The primary aim of the present paper is to develop an efficient classifier to automatically distinguish compensatory balance responses (or near-falls) from regular stepping patterns. In this study, 5 young, healthy subjects were perturbed by lateral pushes while walking and the compensatory reactions were recorded by three wearable inertial measurement units (IMUs). Time domain features of these signals were extracted and reduced, using different dimension reduction methods, i.e., PCA, SPCA and KSPCA. The performance of k-nearest neighbor (k-NN) and support vector machines (SVMs) classification methods for detection of compensatory balance responses is investigated. The results of this study advances wearable measurement methods to accurately and reliably monitor gait balance control behavior in at-home settings (unsupervised conditions), over long periods of time (i.e., weeks, months). Building on the current study, subsequent research will examine ambulatory data to identify balance recovery processes for clinical assessment of fall risk.
Year
DOI
Venue
2015
10.1109/BioCAS.2015.7348282
2015 IEEE Biomedical Circuits and Systems Conference (BioCAS)
Keywords
Field
DocType
Compensatory stepping,wearable sensors,IMUs,machine learning techniqies
Time domain,Population,Units of measurement,Dimensionality reduction,Gait,Wearable computer,Computer science,Support vector machine,Artificial intelligence,Classifier (linguistics),Machine learning
Conference
ISSN
Citations 
PageRank 
2163-4025
0
0.34
References 
Authors
2
2
Name
Order
Citations
PageRank
mina nouredanesh101.01
James Yungjen Tung2224.59