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KMID : 1012020170060010014
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Physical Therapy Rehabilitation Science
2017 Volume.6 No. 1 p.14 ~ p.19
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Effects of performing hip abduction and adduction during bridging exercise on trunk and lower extremity muscle activity in healthy individuals
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Hwang Joo-Young
Ahn Woo-Young
Kim Hyo-Jae
Woo Je-Hyun
Choi Woo-Jin
Park Jae-Wook
Lee Mi-Young
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Abstract
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Objective: To investigate the effect of performing three different bridge exercise conditions on the activities of four different muscles using surface electromyography (sEMG) in healthy young adults.
Design: Cross-sectional study.
Methods: A total of 20 healthy young adults (10 males, 10 females) voluntarily participated in this study. All subjects randomly performed three different bridge conditions as follows: general bridge exercise, isometric hip abduction (IHAB) with a blue Thera-band (Hygenic Corp., USA), and isometric hip adduction (IHAD) with a Swiss ball (Hygenic Corp.). The muscle activities of bilateral erector spinae (ES), gluteus maximus (GM), biceps femoris (BF), and external oblique (EO) muscles during the bridge exercises were measured using sEMG. Subjects performed each of the three bridge conditions three times in random order and mean values were obtained.
Results: For bilateral ES and BF, there was a significant increase in muscle activity in the IHAD condition compared to the general bridge and IHAB condition (p<0.05). For bilateral GM, there was a significant increase in muscle activity in the IHAB condition compared to the general bridge condition (p<0.05) and there was a significant increase in muscle activity in the IHAB condition compared to IHAD condition (p<0.05). For left EO, a significant increase was observed in the IHAD condition compared to the general bridge condition (p<0.05).
Conclusions: ES and BF muscle activity increases were observed with hip adduction and increased GM activity was observed with hip abduction. These findings may be applicable within the clinical field for selective trunk and lower extremity muscle activation and advanced rehabilitation purposes.
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KEYWORD
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Abdominal oblique muscles, Electromyography, Exercise, Hip, Lower extremity
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