Preliminary tests of a prototype FES control system for cycling wheelchair rehabilitation

The cycling wheelchair "Profhand" developed by our research group in Japan has been found to be useful in rehabilitation of motor function of lower limbs. It is also expected for rehabilitation of paraplegic subjects to propel the cycling wheelchair by lower limbs controlled by functional...

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Published in2013 IEEE 13th International Conference on Rehabilitation Robotics (ICORR) Vol. 2013; pp. 1 - 6
Main Authors Watanabe, Takashi, Murakami, Takuya, Handa, Yasunobu
Format Conference Proceeding Journal Article
LanguageEnglish
Published United States IEEE 01.06.2013
Subjects
Angular velocity
cycling wheelchair
Electric Stimulation - instrumentation
Electric Stimulation - methods
Electrical stimulation
FES
Force
functional electrical stimulation
Hemiplegia - rehabilitation
Humans
Locomotion - physiology
Lower Extremity - physiology
Lower Extremity - physiopathology
lower limb
Male
Muscles
Profhand
Propulsion
Switches
Wheelchairs
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Summary:The cycling wheelchair "Profhand" developed by our research group in Japan has been found to be useful in rehabilitation of motor function of lower limbs. It is also expected for rehabilitation of paraplegic subjects to propel the cycling wheelchair by lower limbs controlled by functional electrical stimulation (FES). In this paper, a prototype FES control system for the cycling wheelchair was developed using wireless surface stimulators and wireless inertial sensors and tested with healthy subjects. The stimulation pattern that stimulated the quadriceps femoris and the gluteus maximus at the same time was shown to be effective to propel the Profhand. From the analysis of steady state cycling, it was shown that the cycling speed was smaller and the variation of the speed was larger in FES cycling than those of voluntary cycling. Measured angular velocity of the crank suggested that stimulation timing have to be changed considering delay in muscle response to electrical stimulation and cycling speed in order to improve FES cycling. It was also suggested that angle of the pedal have to be adjusted by controlling ankle joint angle with FES in order to apply force appropriately.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISBN:9781467360227
1467360228
ISSN:1945-7898
1945-7901
DOI:10.1109/ICORR.2013.6650484