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KMID : 1142420220200010067
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PNF and Movement
2022 Volume.20 No. 1 p.67 ~ p.72
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Comparison of Trunk and Lower Extremity Muscle Activities during Deadlift depending on Support Surface
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Jeong Se-Yeon
Son Sang-Jun
Lee Hyeong-Seok
Lee Jeong-Hoon
Baek Ji-Won
Yang Seong-Bin
Choi Won-Jae
Hong Soung-Kyun
Song Sun-Hae
Lee Gyu-Chang
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Abstract
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Purpose: The aim of this study was to compare trunk and lower extremity muscle activity during deadlift on stable- and unstable surfaces.
Methods: Twenty healthy men participated in this study. The participants performed deadlift exercise on both a stablesurface and an unstable surface. During the deadlift, the activities of the trunk and lower extremity muscle were collectedby using electromyography.
Results: The results showed that the electromyographic activity of the gluteus maximus significantly increased duringdeadlift on an unstable surface compared to on a stable surface (p <0.05). However, in the electromyographic activitiesof the rectus femoris, biceps femoris, and erector spinae, there were no significant differences (p >0.05).
Conclusion: The finding that the electromyographic activity of the gluteus maximus increases significantly during deadlifton an unstable surface compared to stable one could be used to develop an efficient exercise program.
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KEYWORD
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Deadlift, Support surface, Muscle activity, Trunk, Lower extremity
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