Comparison of trunk and hip muscle activity during different degrees of
lumbar and hip extension |
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| Authors: | Sang-min Kim Won-gyu Yoo |
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| Affiliation: | 1) Department of Physical Therapy, The Graduate School, Inje University, Republic of Korea;2) Department of Physical Therapy, College of Biomedical Science and Engineering, Inje University, Republic of Korea |
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| Abstract: | ![]()
[Purpose] This study compared the activity of trunk and hip muscles during differentdegrees of lumbar and hip extension. [Subjects] The study enrolled 18 participants.[Methods] Two exercises (hip and lumbar extension) and two ranges (180° and <180°) werestudied. [Results] Differences in degree of extension affected the percentage maximalvoluntary isometric contraction of the lumbar erector spinae and biceps femoris muscles,with significantly higher average values at >180° than at 180° lumbar extension. Nosignificant differences were found in gluteus maximus activity according to exercise typeor range. [Conclusion] Hip extension may be more effective and safer for lumbarrehabilitation than lumbar extension.Key words: EMG, Hip extension, Lumbar extension |
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