高中棒球選手手肘關節活動度之特徵及守備位置對其之影響

Characteristics of Elbow Range of Motions and Defended Position Comparison in High School Baseball Players

張曉昀(Hsiao-Yun Chang) ； 鍾宇政(Yeu-Jeng Jong) ； 張碧峰(Bi-Fong Chang)

《物理治療》 35卷4期 (2010/12) Pp. 284-291

摘要

Background: Altered shoulder range of motion was more seen in baseball players. However, very few regarding the youth players and their elbow range of motion (ROM) differences in handedness and defended position could be found. Therefore, the purposes of this study were to compare the differences of the elbow ROM between dominated and non-dominated sides and to determine if there was any difference existed between different defended positions of high school baseball players. Methods: Twenty-two high school baseball players and 22 college students participated in the study. ROM including flexion, hyper-extension, pronation, supination, and valgus of the dominant and non-dominant elbows were measured by a goniometer Results: Baseball players showed significantly smaller ROM of their dominant elbow flexion, hyperextension, supination, pronation to supination total range, and non-dominant supination than subjects in the comparison group. Baseball players also demonstrated smaller ranges of their dominant elbow flexion, supination, and flexion-extension total range than range of their non-dominant side. The valgus carry angle of pitchers' dominant elbow was larger than the non-dominant arm elbow. Conclusions: Long term baseball training may result in osseous or soft tissue adaptive changes of the dominant elbow. Sequentially, it would alter the joint mobility of baseball players' dominant elbow, especially for pitchers.

關鍵字

過肩投擲運動 ； 青少年 ； 手肘傷害 ； 柔軟度 ； 棒球

並列摘要

Background: Altered shoulder range of motion was more seen in baseball players. However, very few regarding the youth players and their elbow range of motion (ROM) differences in handedness and defended position could be found. Therefore, the purposes of this study were to compare the differences of the elbow ROM between dominated and non-dominated sides and to determine if there was any difference existed between different defended positions of high school baseball players. Methods: Twenty-two high school baseball players and 22 college students participated in the study. ROM including flexion, hyper-extension, pronation, supination, and valgus of the dominant and non-dominant elbows were measured by a goniometer Results: Baseball players showed significantly smaller ROM of their dominant elbow flexion, hyperextension, supination, pronation to supination total range, and non-dominant supination than subjects in the comparison group. Baseball players also demonstrated smaller ranges of their dominant elbow flexion, supination, and flexion-extension total range than range of their non-dominant side. The valgus carry angle of pitchers' dominant elbow was larger than the non-dominant arm elbow. Conclusions: Long term baseball training may result in osseous or soft tissue adaptive changes of the dominant elbow. Sequentially, it would alter the joint mobility of baseball players' dominant elbow, especially for pitchers.

並列關鍵字

Overhead throwing ； Adolescent ； Elbow injury ； Flexibility ； Baseball