지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
PURPOSE: This study was to determine the effect of the plane of movement (sagittal plane vs. scapular plane) and shoulder flexion angle ($90^{\circ}$ vs. $130^{circ}$) during scapular protraction exercises in healthy subjects by investigating the elecromyographic (EMG) activities of the serratus anterior (SA), upper trapezius (UT), and pectoralis major (PM). METHODS: Twenty-one healthy subjects participated in this study. Subjects performed maximal scapular protraction at the $90^{\circ}$ or $130^{\circ}$ shoulder flexion angles in the sagittal or scapular planes. Surface EMG was recorded from the SA and UT, and PM muscles. Dependent variables were examined by 2 (plane) ${\times}$ 2 (angle) repeated measures of analysis of variance (ANOVA). RESULTS: Significantly increased EMG activities in the SA and UT were found during scapular protraction exercise at the $130^{\circ}$ shoulder flexion angle in the sagittal and scapular plane. Also, EMG activity of the PM significantly decreased at the $130^{\circ}$ shoulder flexion angle in the sagittal plane and the $90^{\circ}$ and $130^{\circ}$ shoulder flexion in the scapular plane. CONCLUSION: we recommend scapular protraction exercise at the $90^{\circ}$ shoulder flexion in the sagittal plane to selectively strengthen the SA muscle with limitation of upper trapezius activity and at the $130^{\circ}$ shoulder flexion in the scapular plane to selectively strengthen the SA muscle with limitation of pectoralis major activity.
목차
등록된 정보가 없습니다.
참고문헌 (31)
참고문헌 신청
Antony NT / 2010 / Effects of posture, movement and hand load on shoulder muscle activity / J Electromyogr Kinesiol 20(2):191~198
Cools AM / 2004 / Evaluation of isokinetic force production and associated muscle activity in the scapular rotators during a protractionretraction movement in overhead athletes with impingement symptoms / Br J Sports Med 38(1):64~68
Cools AM / 2005 / Isokinetic scapular muscle performance in overhead athletes with and without impingement symptoms / J Athl Train 40(2):104~110
Cram JR / 2011 / Introduction to surface electromyography / Apsen
Criswell E / 2010 / Cram’s Introduction to Surface Electromyography / Jones and Bartlett Publishers
Cools AM / 2004 / Evaluation of isokinetic force production and associated muscle activity in the scapular rotators during a protractionretraction movement in overhead athletes with impingement symptoms / Br J Sports Med 38(1):64~68
Cools AM / 2005 / Isokinetic scapular muscle performance in overhead athletes with and without impingement symptoms / J Athl Train 40(2):104~110
Cram JR / 2011 / Introduction to surface electromyography / Apsen
Criswell E / 2010 / Cram’s Introduction to Surface Electromyography / Jones and Bartlett Publishers
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