Three-dimensional rotation of the scapula during functional movements: An in vivo study in healthy volunteers
Three-dimensional rotation of the scapula during functional movements: An in vivo study in healthy volunteers
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DOI：
10.1016/j.jse.2006.06.011
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发表时间：
2007-03-01
影响因子：
3
通讯作者：
Oxland, Thomas R.
中科院分区：
文献类型：
--
作者：
Bourne, Douglas A.;Choo, Anthony M. T.;Oxland, Thomas R.
本研究的目的是通过使用直接侵入性技术测量健康志愿者在4种不同手臂动作时的三维肩部运动。招募了8名肩部健康的受试者。将光电标记物载体(红外线发光二极管)安装在骨钉上，并将其插入肩峰外侧脊柱。受试者在用精密光电摄像机记录下手臂动作的同时，做了4种不同的手臂动作。在3个维度上计算关节角度。组内相关系数和均方根差被计算为可靠性的衡量标准。在外展过程中，肩胛骨向后倾斜(44度+/-11度)，向上旋转(49度+/-7度)，向外旋转(27度+/-11度)。对于伸展，肩胛骨持续向上旋转(17度+/-3度)和向内旋转(18度+/-6度)，而倾斜度一般小于10度(5度+/-2度)。总体而言，背部手的肩胛骨活动范围很小且变化很大，大多数旋转不超过15度。对于水平内收，肩胛骨向前倾斜(8度+/-3度)，向上旋转(5度+/-2度)，并向内旋转(27度+/-6度)。这些肩胛骨旋转提供了标准数据，将有助于诊断肩胛骨功能障碍。
The goal of this study was to measure 3-dimensional shoulder motion by use of a direct invasive technique during 4 different arm movements in healthy volunteers. Eight subjects with healthy shoulders were recruited. Optoelectronic marker carriers fie, infrared light-emitting diodes) were mounted on bone pins, which were inserted into the lateral scapular spine. Subjects performed 4 different arm movements while the motion was being recorded by a precision optoelectronic camera. Joint angles were calculated in 3 dimensions. Intraclass correlation coefficients and root-mean-square differences were-calculated as measures of reliability. During abduction, the scapula tipped posteriorly (44 degrees +/- 11 degrees), rotated upward (49 degrees +/- 7 degrees), and rotated externally (27 degrees +/- 11 degrees). For reaching, the scapula consistently rotated upward (17 degrees +/- 3 degrees) and rotated internally (18 degrees +/- 6 degrees) whereas tipping was generally less than 10 degrees (5 degrees +/- 2 degrees). Overall, the range of scapular movement for the hand behind the back was small and variable, with most rotations not exceeding 15 degrees. For horizontal adduction, the scapula tipped anteriorly (8 degrees +/- 3 degrees), rotated upward (5 degrees +/- 2 degrees), and rotated internally (27 degrees +/- 6 degrees). These scapular rotations provide normative data that will be useful for diagnosing scapular dysfunction.