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

正常年輕族群以足外八著地角度行走會增加內側地面反作用力

鍾進燈(Chein-Teng Chung) ； 楊鎮嘉(Chen-Chia Yang) ； 邱靖華(Chin-Hwa Chiu) ； 林家弘(Chia-Hung Lin) ； 謝悅齡(Yueh-Ling Hsieh)

《台灣復健醫學雜誌》 38卷2期 (2010/06) Pp. 65-73

https://doi.org/10.6315/2010.38(2)01

摘要

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.

關鍵字

地面反作用力 ； 著地角度 ； 足外八

並列摘要

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.

並列關鍵字

ground reaction force ； foot landing position ； toe-out