Modification of postural response caused by footwear conditions

Journal of the Japanese Physical Therapy Association = Rigaku Ryōhō
H MaejimaO Yoshimura

Abstract

The purpose of this study was to clarify the effect of changing footwear conditions on postural response against postural perturbation. Twenty-three healthy subjects participated in this study. Postural response was induced by moving a platform forward, hereafter referred to as forward-perturbation of a platform. The center of pressure (COP) from the force plate and the electromyograms (EMG) of the tibialis anterior (TA) and quadriceps femoris (QUAD), which are both agonists of the response, were measured. The effect of plantar material and shape of footwear on postural response was examined as footwear condition. Changing plantar materials had an effect on integrated EMG of the agonists (IEMG) but not on the response pattern. On the other hand, the shape of footwear had an effect on the response pattern but not on IEMG. It was supposed from this result that changes in somatosensory input, caused by coupling of plantar material and shape of footwear, modifies postural response variously.

References

Oct 1, 1992·Journal of the American Podiatric Medical Association·P B SanfilippoK M Moss
Oct 1, 1989·Journal of Neurophysiology·F B HorakL M Nashner
Aug 1, 1994·Journal of Neurophysiology·F B Horak, H C Diener

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