• 한국전문물리치료학회지
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• 제11권1호
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• pp.45-52
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• 2004

Altered scapular kinematics in the scapular joint is commonly believed to be a factor contributing to trunk posture. The purpose of this study was to analyze the muscle activity with several changes of the shoulder angle. Tests were performed on 10 male subjects by repeated measures. Each subject was measured while sitting in both erect and slouched trunk positions. In each sitting posture, a three-dimensional motion analysis measurement was used to measure thoracic angle and shoulder abduction angle. Measurements were taken with the shoulder abdcution angle at $0^{\circ}$, $30^{\circ}$, $60^{\circ}$, $90^{\circ}$, $120^{\circ}$, and $150^{\circ}$. By using surface Electromyography (EMG) electrodes, we recorded the activity of the upper trapezius, middle trapezius, lower trapezius, middle deltoid, and serratus anterior muscle while the subject held a 4 kg weight at each angle. The mean of root mean square (RMS) of EMG activity was calculated. The middle trapezius, lower trapezius, and middle deltoid muscle activity showed significantly higher results but serratus anterior muscle activity showed significantly lower results (p<.05). With the shoulder angle increased, the muscle activity was also significantly increased (p<.05). In conclusion, the thoracic spine posture significantly affects the scapular muscle during scapular plane abduction, and the slouched posture is associated with increased trapezius muscle activity and with decreased serratus anterior muscle activity.

• 한국전문물리치료학회지
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• 제25권4호
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• pp.1-8
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• 2018

Background: Round shoulder posture, results from excessive flexed posture of the thorax, is defined as a position of scapular protraction, anterior tipping, and downward rotation. However, previous studies have focused on only passive position of the thorax during scapular posterior tilting (SPT) and have not reported on SPT combined with correction of flexed posture. Objects: The aim of this study was to compare effects of SPT and SPT with prone trunk extension (SPT + PTE) on activities of the lower trapezius, serratus anterior, and thoracic erector spinae and degree of posture in subjects with round shoulder and flexed posture. Methods: Fifteen subjects with round shoulder and flexed posture were recruited. The caliper was used to measure the degree of round shoulder and flexed posture. Electromyography was performed to collect data of muscle activities. Paired t-test was used to compare two exercise (${\alpha}=.05$). Results: When SPT + PTE was applied, the degree of round shoulder posture (p=.001) and flexed posture (p=.039) significantly decreased compared with that when SPT was applied. The lower trapezius activity significantly increased in the SPT + PTE condition compared with that in the SPT condition (p=.026). There were no significant differences in serratus anterior activity between SPT + PTE and SPT. The thoracic erector spinae activity significantly increased in the SPT + PTE condition compared with that in the SPT condition (p=.014). Conclusion: SPT + PTE might be one of the effective methods to enhance activities of lower trapezius and thoracic erector spinae, and to reduce round shoulder posture and flexed posture in subjects with round shoulder and flexed posture.

• Clinics in Shoulder and Elbow
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• 제11권2호
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• pp.150-157
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• 2008

목적: 견갑골 체부 골절의 수술적 치료 결과를 분석하고자 하고자 한다. 대상 및 방법: 7명의 환자를 대상으로 수술적 치료를 시행하였다. 견갑골 외측 경계가 100% 전위된 경우, 관절와가 $25^{\circ}$ 각변형 되거나 1 cm 이상 내측 전위된 경우, 견갑골 체부와 쇄골 골절이 동반된 경우를 수술적 치료의 대상으로 삼았다. 남자가 5명 여자가 2명, 평균 나이는 49(40~58)세, 평균 추시는 11(6~24)개월 이였다. 두 명은 다발성 늑골 골절과 척추 골절을 동반하였다. 기능적 평가를 위해 UCLA score 와 Korean shoulder score, 술 후 주관적인 만족도를 이용하였다. 결과: UCLA score는 평균29(17~33)점 이었고 평균 Korean shoulder score는 86(63~94)점이었다. 환자의 주관적인 만족도는 10점 만점에 7.7(4~9)이었다. 합병증으로 정복된 골절의 소실 없는 나사못 이완이 1예에서 관찰되었으며 관절와로 돌출된 나사못으로 1예에서는 교환하여야 하였다. 결론: 심하게 전위된 견갑골 체부골절에서는 견관절 및 견갑흉곽관절의 생역학적 이상으로 인한 견관절의 운동 장애를 예방하기 위해 수술적 치료가 도움이 될 것으로 판단된다.