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논문 기본 정보

자료유형
학술저널
저자정보
Chang Min-jeong (Department of Physical Therapy, The Graduate School, Yonsei University, Wonju, KoreaKinetic Ergocise Based on Movement Analysis Laboratory, Wonju, Korea) Kim Jun-hee (Kinetic Ergocise Based on Movement Analysis Laboratory, Wonju, KoreaDepartment of Physical Therapy, College of Health Science, Yonsei University, Wonju, Korea) Hwang Ui-jae (Kinetic Ergocise Based on Movement Analysis Laboratory, Wonju, KoreaDepartment of Physical Therapy, College of Software and Digital Healthcare Convergence, Yonsei University, Wonju, Korea) Ahn Il-kyu (Department of Physical Therapy, The Graduate School, Yonsei University, Wonju, KoreaKinetic Ergocise Based on Movement Analysis Laboratory, Wonju, Korea) Kwon Oh-yun (Kinetic Ergocise Based on Movement Analysis Laboratory, Wonju, KoreaDepartment of Physical Therapy, College of Software and Digital Healthcare Convergence, Yonsei University, Wonju, Korea)
저널정보
한국전문물리치료학회 한국전문물리치료학회지 한국전문물리치료학회지 제31권 제1호
발행연도
2024.4
수록면
72 - 78 (7page)
DOI
10.12674/ptk.2024.31.1.72

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초록· 키워드

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Background: Limitations of shoulder range of motion (ROM), particularly shoulder internal rotation (SIR), are commonly associated with musculoskeletal disorders in both the general population and athletes. The limitation can result in connective tissue lesions such as superior labrum tears and symptoms such as rotator cuff tears and shoulder impingement syndrome. Maintaining the center of rotation of the glenohumeral joint during SIR can be challenging due to the compensatory scapulothoracic movement and anterior displacement of the humeral head. Therefore, observing the path of the instantaneous center of rotation (PICR) using the olecranon as a marker during SIR may provide valuable insights into understanding the dynamics of the shoulder joint. Objects: The aim of the study was to compare the displacement of the olecranon to measure the rotation control of the humeral head during SIR in individuals with and without restricted SIR ROM. Methods: Twenty-four participants with and without restricted SIR ROM participated in this study. The displacement of olecranon was measured during the shoulder internal rotation control test (SIRCT) using a Kinovea (ver. 0.8.15, Kinovea), the 2-dimensional marker tracking analysis system. An independent t-test was used to compare the horizontal and vertical displacement of the olecranon marker between individuals with and without restricted SIR ROM. The statistical significance was set at p < 0.05. Results: Vertical displacement of the olecranon was significantly greater in the restricted SIR group than in the control group (p < 0.05). However, no significant difference was observed in the horizontal displacement of the olecranon (p > 0.05). Conclusion: The findings of this study indicated that individuals with restricted SIR ROM had significantly greater vertical displacement of the olecranon. The results suggest that the limitation of SIR ROM may lead to difficulty in rotation control of the humeral head.

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