Comparison of the Activity of the Abductor Hallucis Muscle during Short-foot Exercises using Foot Orthosis and the Windlass Effect in Sitting and One-leg Standing Positions

  • Kim D
  • Jung D
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Abstract

| Abstract |1) PURPOSE: The purpose of this study was to compare the activity of the abductor hallucis (AbdH) muscle during short foot exercise (SFE) using foot orthosis (SFE-FO) and the windlass effect (SFO-WE) while sitting and in a one-leg standing position. METHODS: We recruited fourteen subjects with normal feet for this study. Surface electromyography (EMG) was used to measure the muscle activity of the AbdH muscle during SFE, SFE-FO, and SFE-WE while sitting and in a one-leg standing position. Three trials consisting of a 5 s hold for each of the three exercises were performed to measure the †Corresponding Author : ptsports@joongbu.ac.kr This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. EMG activity of the AbdH muscle. Exercise type and position were randomly assigned. Two-way repeated-measures ANOVA was used to analyze the effects of exercise type (SFE vs. SFE-FO vs. SFE-WE) and position (sitting vs. one-leg standing position) on AbdH muscle activity. A statistical significance was set at α=.05. RESULTS: The EMG activity of AbdH muscle in the SFE-WE exercise was significantly greater than that during SFE and SFE-FO in both exercise positions (p

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Kim, D.-H., & Jung, D.-Y. (2017). Comparison of the Activity of the Abductor Hallucis Muscle during Short-foot Exercises using Foot Orthosis and the Windlass Effect in Sitting and One-leg Standing Positions. Journal of The Korean Society of Physical Medicine, 12(1), 75–81. https://doi.org/10.13066/kspm.2017.12.1.75

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