Development of heat feedback parameter of muscle activation detection in functional electrical stimulation / Nadhirah Mohd Khaidir

Nadhirah , Mohd Khaidir (2012) Development of heat feedback parameter of muscle activation detection in functional electrical stimulation / Nadhirah Mohd Khaidir. Masters thesis, University of Malaya.

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Abstract

Functional Electrical Stimulation (FES) was famously being applied in controlling stimulation of muscles for the restoration of movements in paralysed human. Thus, the development of sensory feedback is necessary to improve the performance of FES systems by detecting the level of the muscle force. This research project focuses on the development of a heat feedback parameter in FES. There are two components for this project. Firstly, the FES stimulator was constructed to produce a suitable stimulation by modulating the input parameter. A temperature sensor was used to detect the heat produced by the stimulated muscle. Secondly, two tests were conducted in several able-bodied subjects. First was voluntary training and second was using stimulation. During tests, the cycling resistance and amplitude of pulses current was increased. Then, the heat produced was compared to the muscle contraction level during the contraction of the vastus lateralis muscles and determine if either the heat produce is correlated to the level contraction of muscle.

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