Pellegrini A, Tonino P, Salazar D, Hendrix K, Parel I, Cutti A, Paladini P, Ceccarelli F, Porcellini G
Department of Surgical Sciences, Orthopedics and Traumatology Clinic, University of Parma, Via Gramsci 14, 43126, Parma, Italy.
Sport Medicine, Loyola University Chicago, Chicago, IL, USA.
Musculoskelet Surg. 2016 Dec;100(Suppl 1):39-43. doi: 10.1007/s12306-016-0416-1. Epub 2016 Nov 30.
Scapular dyskinesis is a recognized cause of shoulder pain in the throwing shoulder of baseball pitchers and athletes who participate in overhead sports. Past studies have assessed scapular kinematics using electromagnetic tracking devices and have shown a correlation between posterior shoulder tightness and forward scapular posture. The purpose of our study is to evaluate the scapular kinematics, before and after a 4-week posterior stretching protocol in asymptomatic pitchers.
Eleven asymptomatic collegiate baseball pitchers were involved in the study and divided into group A (6 pitchers) underwent 4 weeks of a regimented therapy protocol and group B (5 pitchers) did not receive any treatment. Each pitcher was tested on two separate days: at the first day of the study (S1) and after 4 weeks (S2).
The results demonstrate that there are statistically significant differences in the kinematics of several athletes from the "treated group" (group A) between S1 and S2. It is also important to notice that variations in group A occurred in both flexextension and ab/adduction movements, strengthening the conclusion that the variation was real.
The results of the study can indicate that, in order to prevent the pathologic cascade linked to these sports activities, this physical training protocol might become integral part of the normal daily exercises of baseball pitchers and overhead athletes. Level of evidence II.
肩胛运动障碍是棒球投手及从事过头运动的运动员投掷肩疼痛的一个公认原因。以往研究使用电磁跟踪设备评估肩胛运动学，并显示后肩部紧张与肩胛前伸姿势之间存在相关性。我们研究的目的是评估无症状投手在进行为期4周的后伸拉伸方案前后的肩胛运动学。
11名无症状的大学棒球投手参与了本研究，分为A组（6名投手），接受为期4周的规范治疗方案，B组（5名投手）不接受任何治疗。每位投手在两个不同的日子进行测试：研究第一天（S1）和4周后（S2）。
结果表明，“治疗组”（A组）中几名运动员在S1和S2之间的运动学存在统计学上的显著差异。同样重要的是要注意到，A组在屈伸和外展/内收运动中均出现了变化，强化了这种变化是真实存在的这一结论。
研究结果表明，为了预防与这些体育活动相关的病理级联反应，这种体育训练方案可能会成为棒球投手和过头运动运动员日常常规训练的一部分。证据等级为II级。
