Toe-out Landing Position Increases Medial Ground Reaction Force during Walking in Young Individuals

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Title:	Toe-out Landing Position Increases Medial Ground Reaction Force during Walking in Young Individuals
Authors:	鐘進燈(Chung CT);楊鎮嘉(Yang CC);邱靖華(Chiu CH);林家弘(Lin CH);謝悅齡(Yueh-Ling Hsieh)*
Contributors:	健康照護學院物理治療學系
Keywords:	ground reaction force;foot landing position;toe-out
Date:	2010-07
Issue Date:	2010-09-23 19:55:57 (UTC+8)
Abstract:	Objective: The purpose of this study was to determine how toe-out foot landing position influences ground reaction forces (GRF) during gait. Design: Values of GRF components recorded with a force platform were used to compare 3D GRF vectors of toe-out and non toe-out (including neutral and toe-in) foot landing positions. Methods: Thirty-two healthy males (ranging from 19-21 years old) were repeatedly assigned three foot landing positions: maximum toe-out, maximum toe-in and neutral. Each participant walked with three foot landing positions across a force platform while their three-dimensional motion was captured. Results: No differences were observed for vertical or anteroposterior GRF among three foot landing positions (p > 0.05). For mediolateral GRF, higher medial loading forces appeared at the first and second peaks in toe-out landing position when compared with non toe-out gaits (p < 0.05). Also earlier and later occurrences appeared at the 1st and 2nd peaks in toe-out landing position respectively (p < 0.05). Conclusion: We provide evidence of toe-out, toe-in and neutral foot landing positions on GRF using a kinetic study. It is suggested that individuals who walk with greater degrees of toe-out angle create greater medial GRF during the contact and propulsive phases. ( Tw J Phys Med Rehabil 2010; 38(2): 65 - 73 )
Relation:	台灣復健醫學雜誌 38(2):65-73
Appears in Collections:	[Department of Physical Therapy, Graduate Institute of Rehabilitation Science] Journal articles

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