2026-11-092026-11-09https://scholars.csmu.edu.tw/handle/123456789/38759The shoulder injury was common problems which found in overhead throwing movement. Base on the biomechanics study that related baseball throwing and tennis serve movements, those movements would result in increased shoulder range of motion, anterior capsule of shoulder laxity, muscle imbalance of shoulder IR/ER and scapular muscle. Sequentially, it would cause shoulder pain, instability, or other symptoms. Therefore, there have two purposes in this study. First, this study will find the relationship among range of motion, muscle strength, and stability of shoulder for overhead throwing athletes. Second, compare the different of range of motion, muscle strength, and stability of shoulder between tennis and baseball players. We will recruit thirty healthy tennis players and thirty baseball players. The range of motion (flexion/extension, ER/IR, horizontal adduction, scapular lateral shift), muscle strength (flexor/extensor, external/internal rotator, abductor/adductor, scapular muscle), and stability (swing area and total length track of single-arm lateral support) of shoulder will be assessment. The results of this research might apply on examination of shoulder function for athletics. Moreover, may because of such research results promotion to the different sports events which had overhead throwing movement, and has designed the suitable exercise prescription and rehabilitation guideline for overhead throwing athletes.過肩運動中常見肩關節的傷害，根據生物力學的研究在棒球的投擲動作及網球的 發球動作均會使運動員肩關節的外轉角度增加、前側關節囊鬆弛、肩部的內外轉肌群 肌力不平衡，而造成肩關節的鬆脫及不穩定。本研究之目的有二:(1)了解過肩投擲運 動選手在肩關節活動度與肌力、及穩定性之間的關係;(2)比較兩種常見的過肩投擲運 動(網球及棒球)在肩關節活動度與肌力、及穩定性此三個因子之間的差異。預計招募 正常健康之網球運動員30 位及棒球選手30 位，評估項目包括肩關節活動度(彎曲/過度 伸直、內轉/外轉、水平內縮、肩胛骨外移)、肩關節穩定性(側邊手肘稱地晃動面積、 側邊手肘稱地晃動軌跡)、及肩關節肌力(彎曲/伸展、外轉/內轉、外展/內縮、肩胛骨 周邊肌肉肌力)。預計研究之結果將可應用在檢測過肩運動員的肩關節活動度、肌力、 及穩定性，來了解運動員肩關節功能；另外，可藉由這樣的研究成果推廣至不同運動 項目的過肩運動動作上，並設計過肩運動員適當的肩關節肌力訓練處方及柔軟度處方 與復健治療的指引。肩胛骨不穩定活動性過肩投擲運動神經肌肉控制scapular instabilitymobilityoverhead throwing movementneuromuscularcontrolProject