견관절 외전 각도에 따른 중간 및 하부 승모근의 근 활성도 비교

• 영문명: A Comparison of EMG Activity for Middle and Lower Trapezius Muscle According to Shoulder Abduction Angles
• 발행기관: 한국전문물리치료학회
• 저자명: 이원휘(Won-hwee Lee) 하성민(Sung-min Ha) 박규남(Kyue-nam Park) 김수정(Su-jung Kim) 원종혁(Jong-hyuk Weon) 최흥식(Houng-sik Choi)
• 간행물 정보: 『한국전문물리치료학회지』한국전문물리치료학회지 제18권 제1호, 47~56쪽, 전체 10쪽
• 주제분류: 의약학 > 의학일반
• 파일형태: PDF
• 발행일자: 2011.02.28

영문 초록

The purpose of this study was to compare electromyography (EMG) activity for the middle and lower trapezius muscle according to various shoulder abduction angles. Thirty healthy male subjects were recruited for this study. Each subject performed three repetitions of horizontal abduction at 75˚, 90˚, 125˚, 160˚, and 180˚ of shoulder abduction angle in a prone position. Surface EMG activity was recorded from the middle and lower trapezius while the subjects held for five seconds at a predetermined position. The EMG activity was normalized using the maximal voluntary isometric contraction (MVIC) elicited using a manual muscle testing technique. A repeatedly measured ANOVA was performed by Bonferroni's post hoc test. The EMG activity of the middle and lower trapezius was significantly different among shoulder abduction angles (p<.05). The greatest level of muscle activity for the middle and lower trapezius were demonstrated at 90˚and 160˚of shoulder abduction angle, respectively. These results suggest that middle and lower trapezius strengthening exercise and manual muscle testing should be performed at different shoulder abduction angles.

목차

Ⅰ. 서론

Ⅱ. 연구방법

Ⅲ. 결과

Ⅳ. 고찰

Ⅴ. 결론

키워드

Electromyography Lower trapezius muscle Middle trapezius muscle