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복근 운동의 방법에 따른 상하부 복직근의 근활성도 비교
정병옥 ; 안병옥 김천대학교 2009 김천대학교 논문집 Vol.30 No.-
Objective: The purpose of study was to verify the most effective abdominal muscles exercise by comparing the activity of upper and lower rectus abdominus according to four types of exercise (dynamic and static double leg raise, dynamic and static curl-ups exercise). Design and Setting: A one-way analysis of variance (ANOVA) was performed to determine significant differences of activity between each muscles during each of the four different exercises Tukey HSD was then applied (p<.05). All testing was performed in a college laboratory Subjects: Ten healthy students were recruited and each subjects performed four types of exercises. Measurements: Surface EMG activity was recorded from the both upper and lower rectus abdominus while the 4 exercisesdynamic and static double leg raise, dynamic and static curl-ups exercises were performed in different positions (dynamic and static supports). The static position was supine in the crook-lying position, the dynamic position was supine in the crook-lying position, and pelvic supported on a balance pad. peak activity was normalized to a maximum voluntary isometric contraction for upper and lower rectus abdominus. Results: For the rectus abdominus, there was an interaction between position and activity. The EMG amplitude of upper rectus abdominus was high in static curl-ups exercise. EMG amplitude of lower rectus abdominus was high in static curl-ups exercise. The type of dynamic double leg raise did affect the activity of lower rectus abdominus. Conclusion: The type of static curl-ups was more effective than dynamic curl-ups exercise. The type of double leg raise usually was thought to strengthen of lower abdominus.
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