title: Modification of postural response caused by footwear conditions.
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.
authors: Institute of Health Sciences, Hiroshima University School of Medicine.
authors: H
authors: H
authors: Maejima
authors: Institute of Health Sciences, Hiroshima University School of Medicine.
authors: C
authors: C
authors: Kamoda
authors: School of Health Science, Sapporo Medical University.
authors: K
authors: K
authors: Takayanagi
authors: Institute of Health Sciences, Hiroshima University School of Medicine.
authors: M
authors: M
authors: Hosoda
authors: Institute of Health Sciences, Hiroshima University School of Medicine.
authors: R
authors: R
authors: Kobayashi
authors: Institute of Health Sciences, Hiroshima University School of Medicine.
authors: A
authors: A
authors: Minematsu
authors: Institute of Health Sciences, Hiroshima University School of Medicine.
authors: H
authors: H
authors: Sasaki
authors: Institute of Health Sciences, Gunma University School of Medicine.
authors: Y
authors: Y
authors: Matsuda
authors: Institute of Health Sciences, Hiroshima University School of Medicine.
authors: Y
authors: Y
authors: Tanaka
authors: Institute of Health Sciences, Hiroshima University School of Medicine.
authors: A
authors: A
authors: Matsuo
authors: Institute of Health Sciences, Hiroshima University School of Medicine.
authors: N
authors: N
authors: Kanemura
authors: Institute of Health Sciences, Hiroshima University School of Medicine.
authors: T
authors: T
authors: Ueda
authors: Institute of Health Sciences, Hiroshima University School of Medicine.
authors: O
authors: O
authors: Yoshimura
keywords: automatic postural response; electromyogram; footwear types