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수동적 어깨뼈 정렬이 작은가슴근 단축된 사람의 등세모근 근활성도에 미치는 영향

Effects of Passive Scapular Alignment on Electromyographic Activity of Trapezius in People With Shortness of Pectoralis Minor Muscle

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키워드

주제분류물리치료학

초록

The purpose of this study was to assess the influence of scapular alignment on the electromyographic (EMG) activity of the trapezius in people with a short pectoralis minor muscle. For the study, we recruited 15 volunteers who had positive results for short on a pectoralis minor muscle length test. We measured the EMG activity of the upper, middle and lower trapezius muscles. The participants lifted their dominant arm to ear level with the thumb up toward the ceiling in the prone position on a table with the shoulder at a flexion angle of 180 degrees and a horizontal abduction angle of 120 degrees. Scapula was manually aligned by an experienced physical therapist prior to arm lift for the scapular alignment condition. A paired t-test was used to compare the effects of scapular alignment on the EMG activity of the trapezius muscles. The EMG activity of the lower trapezius muscle was significantly increased during the test with the scapular alignment compared to that without scapular alignment (p<.05), while the upper trapezius and middle trapezius exhibited no significant difference between the two conditions (p>.05). The findings of this study suggest that a scapular alignment may alter the recruitment of the lower trapezius muscle during arm lifting in the prone position in people with a short pectoralis minor muscle.

Abstract

The purpose of this study was to assess the influence of scapular alignment on the electromyographic (EMG) activity of the trapezius in people with a short pectoralis minor muscle. For the study, we recruited 15 volunteers who had positive results for short on a pectoralis minor muscle length test. We measured the EMG activity of the upper, middle and lower trapezius muscles. The participants lifted their dominant arm to ear level with the thumb up toward the ceiling in the prone position on a table with the shoulder at a flexion angle of 180 degrees and a horizontal abduction angle of 120 degrees. Scapula was manually aligned by an experienced physical therapist prior to arm lift for the scapular alignment condition. A paired t-test was used to compare the effects of scapular alignment on the EMG activity of the trapezius muscles. The EMG activity of the lower trapezius muscle was significantly increased during the test with the scapular alignment compared to that without scapular alignment (p<.05), while the upper trapezius and middle trapezius exhibited no significant difference between the two conditions (p>.05). The findings of this study suggest that a scapular alignment may alter the recruitment of the lower trapezius muscle during arm lifting in the prone position in people with a short pectoralis minor muscle.

참고문헌 (38)

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관련 논문AI추천

견관절 외전 각도에 따른 중간 및 하부 승모근의 근 활성도 비교김수정, 박규남, 원종혁, 이원휘, 최흥식, 하성민한국전문물리치료학회 · 한국전문물리치료학회지2011 · 제18권 제1호엎드린 자세에서 어깨 폄 운동 시 목과 어깨 돌림 위치에 따른 등세모근 근활성도 비교김상현, 배창환, 송성인대한정형도수물리치료학회 · 대한정형도수물리치료학회지2025 · 제31권 제1호작은가슴근 스트레칭, 아래등세모근 강화 운동과 함께 적용한 앞톱니근 강화운동이 둥근 어깨 대상자의 어깨뼈 정렬, 관절가동범위, 근육불균형에 미치는 영향김종우, 임준영대한정형도수물리치료학회 · 대한정형도수물리치료학회지2024 · 제30권 제2호아래등세모근 근력강화 운동방법들 사이의 어깨뼈 위쪽 돌림근과 다른 어깨 근육들의 근활성도 비교용준형, 원종혁한국전문물리치료학회 · 한국전문물리치료학회지2013 · 제20권 제3호어깨뼈 내밈 운동 시 어깨관절 수평 벌림과 수평모음 저항과 외부 무게에 따른 앞톱니근, 위등세모근, 그리고 큰가슴근 근활성도 비교김규령, 김명권, 박수형, 배창환, 추이저대한정형도수물리치료학회 · 대한정형도수물리치료학회지2021 · 제27권 제3호척주 기립자세와 굽힌자세에서 어깨관절 외전각도 변화에 따른어깨뼈 주위 근 활성도 분석김덕화, 오재섭, 최종덕한국전문물리치료학회 · 한국전문물리치료학회지2004 · 제11권 제1호

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