高性能平击和上旋网球发球时的肩关节负荷
Shoulder joint loading in the high performance flat and kick tennis serves.
作者信息
Reid Machar, Elliott Bruce, Alderson Jacque
机构信息
University of Western Australia, 35 Stirling Highway, Crawley, Western Australia, Australia.
出版信息
Br J Sports Med. 2007 Dec;41(12):884-9; discussion 889. doi: 10.1136/bjsm.2007.036657. Epub 2007 May 18.
OBJECTIVE
To quantify and compare the full body kinematics and shoulder joint kinetics during the high-performance tennis flat (FS) and kick serves (KS).
METHODS
A 12-camera 250 Hz, Vicon motion analysis system recorded the three-dimensional FS and KS of 12 high-performance male players. A total of 22 paired Student's t tests, with an accompanying partial Bonferroni correction (p<0.01), determined statistically significant differences between the variables of interest in both serves.
RESULTS
Higher peak horizontal, vertical and absolute racquet velocities were developed during the FS, while higher lateral velocities characterised the KS. Similar shoulder joint kinematics and kinetics punctuated both serves, but with some variation in trunk and lower limb mechanics.
CONCLUSIONS
Similar shoulder joint kinetics assisted the development of varying three-dimensional racquet velocities in the FS and KS. The comparable shoulder joint loading conditions point to the repetitive, long-term performance of either serve as relevant in shoulder joint injury pathologies.
目的
量化并比较高性能网球平击发球（FS）和上旋发球（KS）过程中的全身运动学和肩关节动力学。
方法
使用12台250Hz的摄像机组成的Vicon运动分析系统记录12名高性能男性运动员的三维FS和KS。总共进行22对学生t检验，并伴有部分Bonferroni校正（p<0.01），以确定两种发球中感兴趣变量之间的统计学显著差异。
结果
FS过程中产生了更高的水平、垂直和绝对球拍峰值速度，而KS的特征是更高的横向速度。两种发球的肩关节运动学和动力学相似，但躯干和下肢力学存在一些差异。
结论
相似的肩关节动力学有助于在FS和KS中产生不同的三维球拍速度。可比的肩关节负荷条件表明，两种发球的重复、长期表现与肩关节损伤病理相关。
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