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An Improved Method for Muscle Activation Detection During Gait

Summary: 1
An Improved Method for Muscle Activation
Detection During Gait
Lanyi Xu, Andy Adler
School of Information Technology and Engineering
University of Ottawa, Ottawa, ON K1N 6N5
lanyixu@site.uottawa.ca, adler@site.uottawa.ca
Abstract-- Estimation of on-off timing of human skeletal mus-
cles during movement based on surface electromyography (EMG)
is an important issue in sport performance and health care
applications. Several methods have been proposed for detecting
the on and off timing of the muscle. However, little is known
about the reliability and accuracy of these methods, which fre-
quently rely on intuitive and heuristic criteria. Some sophisticated
techniques have been proposed, but have a disadvantage of heavy
computational load and therefore not suitable for real-time online
applications. In this study, an improved method is proposed
based on double-threshold method of Bonato et al. (1998). It
provides a higher sensitivity for activation detection. In addition,
the whitening process of the EMG signal is avoided, significantly


Source: Adler, Andy - Department of Systems and Computer Engineering, Carleton University


Collections: Computer Technologies and Information Sciences