@article{ART003240044},
author={강민봉 and Kim Ki Huyn},
title={Effects of Eccentric Exercise with Synergist Muscles on Muscle Activity, Muscle Tone, and Strength of the Hamstring Muscle},
journal={Journal of the Korean Society of Physical Medicine},
issn={1975-311X},
year={2025},
volume={20},
number={3},
pages={103-109}
TY - JOUR
AU - 강민봉
AU - Kim Ki Huyn
TI - Effects of Eccentric Exercise with Synergist Muscles on Muscle Activity, Muscle Tone, and Strength of the Hamstring Muscle
JO - Journal of the Korean Society of Physical Medicine
PY - 2025
VL - 20
IS - 3
PB - The Korean Society of Physical Medicine
SP - 103
EP - 109
SN - 1975-311X
AB - PURPOSE: This study aimed to investigate the effects of eccentric hamstring exercises accompanied by synergist muscle activation on muscle activity, muscle tone, and muscle strength. Although eccentric exercises are known to enhance muscle performance, the contribution of synergist activation to functional outcomes remains insufficiently understood.
METHODS: Thirty healthy university students were randomly assigned to three groups: a concentric exercise group (CEG), an eccentric exercise group (EEG), and an eccentric exercise with synergist muscle group (SEG). All the groups underwent interventions three times per week for four weeks using sling-based exercises. Surface electro- myography was used to evaluate the activation of the biceps femoris, while the MyotonPro device and a handheld dynamometer assessed muscle tone and knee flexion strength, respectively. One-way ANOVA and Bonferroni post-hoc tests were used to analyze intergroup differences. RESULTS: Significant differences were observed among groups with respect to muscle activation and tone (p < 0.05), with the SEG group showing the most favorable outcomes. No significant difference was found in knee flexion strength among the groups (p > .05) although strength gains showed the following trend: SEG > EEG > CEG. CONCLUSION: The eccentric hamstring exercise combined with synergist muscle activation significantly improved muscle activation and tone compared to conventional methods. These findings suggest that integrating synergist activation into rehabilitation or preventive programs targeting the hamstrings may be a beneficial strategy.
KW - Eccentric Contraction;Electromyography;Hamstring Muscles;Motor Activity;Muscle Strength
DO -
UR -
ER -
강민봉 and Kim Ki Huyn. (2025). Effects of Eccentric Exercise with Synergist Muscles on Muscle Activity, Muscle Tone, and Strength of the Hamstring Muscle. Journal of the Korean Society of Physical Medicine, 20(3), 103-109.
강민봉 and Kim Ki Huyn. 2025, "Effects of Eccentric Exercise with Synergist Muscles on Muscle Activity, Muscle Tone, and Strength of the Hamstring Muscle", Journal of the Korean Society of Physical Medicine, vol.20, no.3 pp.103-109.
강민봉, Kim Ki Huyn "Effects of Eccentric Exercise with Synergist Muscles on Muscle Activity, Muscle Tone, and Strength of the Hamstring Muscle" Journal of the Korean Society of Physical Medicine 20.3 pp.103-109 (2025) : 103.
강민봉, Kim Ki Huyn. Effects of Eccentric Exercise with Synergist Muscles on Muscle Activity, Muscle Tone, and Strength of the Hamstring Muscle. 2025; 20(3), 103-109.
강민봉 and Kim Ki Huyn. "Effects of Eccentric Exercise with Synergist Muscles on Muscle Activity, Muscle Tone, and Strength of the Hamstring Muscle" Journal of the Korean Society of Physical Medicine 20, no.3 (2025) : 103-109.
강민봉; Kim Ki Huyn. Effects of Eccentric Exercise with Synergist Muscles on Muscle Activity, Muscle Tone, and Strength of the Hamstring Muscle. Journal of the Korean Society of Physical Medicine, 20(3), 103-109.
강민봉; Kim Ki Huyn. Effects of Eccentric Exercise with Synergist Muscles on Muscle Activity, Muscle Tone, and Strength of the Hamstring Muscle. Journal of the Korean Society of Physical Medicine. 2025; 20(3) 103-109.
강민봉, Kim Ki Huyn. Effects of Eccentric Exercise with Synergist Muscles on Muscle Activity, Muscle Tone, and Strength of the Hamstring Muscle. 2025; 20(3), 103-109.
강민봉 and Kim Ki Huyn. "Effects of Eccentric Exercise with Synergist Muscles on Muscle Activity, Muscle Tone, and Strength of the Hamstring Muscle" Journal of the Korean Society of Physical Medicine 20, no.3 (2025) : 103-109.
