@article{ART003207858},
author={홍유진 and 오은별 and 차용준},
title={Comparison of Muscle Activities of Lower Limb according to Foot Width during Lateral Step-up and Step-down Motion: Repeated Measures Design},
journal={Journal of the Korean Society of Physical Medicine},
issn={1975-311X},
year={2025},
volume={20},
number={2},
pages={73-81}
TY - JOUR
AU - 홍유진
AU - 오은별
AU - 차용준
TI - Comparison of Muscle Activities of Lower Limb according to Foot Width during Lateral Step-up and Step-down Motion: Repeated Measures Design
JO - Journal of the Korean Society of Physical Medicine
PY - 2025
VL - 20
IS - 2
PB - The Korean Society of Physical Medicine
SP - 73
EP - 81
SN - 1975-311X
AB - PURPOSE: This study was conducted to investigate the most effective foot width for activating the lower extremity muscles during the lateral step-up and step-down motion according to three different foot positions.
METHODS: In this single-blinded comparative study, a total of 28 adults performed the lateral step-up and step-down motion with feet positioned at 100% of shoulder width, 75% of shoulder width, and 50% of shoulder width. Surface electromyography (EMG) data were collected from the gluteus maximus (Gmax), gluteus medius (Gmed), vastus lateralis (VL), vastus medialis (VM), and biceps femoris (BF).
RESULTS: The Gmax, Gmed, VL, VM and BF showed statistically significant differences according to the three feet positions (p < .05). When the feet were positioned at 100% of the shoulder width during the lateral step-up motion, all the muscle activities were greater than when the feet were positioned at 50% of the shoulder width (Gmax, +8%, p < .05; Gmed, +23.1%, p < .05; VL, +14%, p = .05; VM, +16%, p < .05; BF, +9.4%, p < .05). When the feet were positioned at 100% of the shoulder width during the lateral step- down motion, the muscle activity of Gmax, Gmed, VL, and VM was greater than when the feet were positioned at 50% of the shoulder width (Gmax, +9.4%, p < .05; Gmed, +9.5%, p < .05; VL, +16.1%, p < .05; VM, +11.3%, p < .05). CONCLUSION: During the lateral step-up and step-down motion, keeping the width between the feet the same as the shoulder width might be the most effective for activating the muscles of the lower extremity.
KW - Feet width;Lateral;Muscle activity;Step-down;Step-up
DO -
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홍유진, 오은별 and 차용준. (2025). Comparison of Muscle Activities of Lower Limb according to Foot Width during Lateral Step-up and Step-down Motion: Repeated Measures Design. Journal of the Korean Society of Physical Medicine, 20(2), 73-81.
홍유진, 오은별 and 차용준. 2025, "Comparison of Muscle Activities of Lower Limb according to Foot Width during Lateral Step-up and Step-down Motion: Repeated Measures Design", Journal of the Korean Society of Physical Medicine, vol.20, no.2 pp.73-81.
홍유진, 오은별, 차용준 "Comparison of Muscle Activities of Lower Limb according to Foot Width during Lateral Step-up and Step-down Motion: Repeated Measures Design" Journal of the Korean Society of Physical Medicine 20.2 pp.73-81 (2025) : 73.
홍유진, 오은별, 차용준. Comparison of Muscle Activities of Lower Limb according to Foot Width during Lateral Step-up and Step-down Motion: Repeated Measures Design. 2025; 20(2), 73-81.
홍유진, 오은별 and 차용준. "Comparison of Muscle Activities of Lower Limb according to Foot Width during Lateral Step-up and Step-down Motion: Repeated Measures Design" Journal of the Korean Society of Physical Medicine 20, no.2 (2025) : 73-81.
홍유진; 오은별; 차용준. Comparison of Muscle Activities of Lower Limb according to Foot Width during Lateral Step-up and Step-down Motion: Repeated Measures Design. Journal of the Korean Society of Physical Medicine, 20(2), 73-81.
홍유진; 오은별; 차용준. Comparison of Muscle Activities of Lower Limb according to Foot Width during Lateral Step-up and Step-down Motion: Repeated Measures Design. Journal of the Korean Society of Physical Medicine. 2025; 20(2) 73-81.
홍유진, 오은별, 차용준. Comparison of Muscle Activities of Lower Limb according to Foot Width during Lateral Step-up and Step-down Motion: Repeated Measures Design. 2025; 20(2), 73-81.
홍유진, 오은별 and 차용준. "Comparison of Muscle Activities of Lower Limb according to Foot Width during Lateral Step-up and Step-down Motion: Repeated Measures Design" Journal of the Korean Society of Physical Medicine 20, no.2 (2025) : 73-81.
