Carpal and forearm kinematics during a simulated hammering task.
Carpal and forearm kinematics during a simulated hammering task.
复制标题
DOI：
10.1016/j.jhsa.2010.04.021
复制
发表时间：
2010-07
影响因子：
1.9
通讯作者：
Crisco, Joseph J.
中科院分区：
文献类型：
--
作者：
Leventhal, Evan L.;Moore, Douglas C.;Akelman, Edward;Wolfe, Scott W.;Crisco, Joseph J.
锤击是一项功能性任务，在锤击中，手腕通常遵循从桡侧偏伸到尺侧偏屈的运动路径，通俗地称为投掷镖运动（DTM）。本研究的目的是在模拟锤击任务中测量手腕和前臂的运动以及舟状骨和月骨的运动学。我们假设腕关节遵循从桡侧伸展到尺侧屈曲的斜向路径，并且在锤击任务中桡腕关节运动最小。13名健康志愿者同意在模拟锤击任务中，用计算机断层扫描在五个位置对他们的手腕和前臂远端进行成像。使用已建立的无标记骨配准方法计算腕骨和远端桡尺关节的运动学。描述了相对于矢状面的手腕运动路径。计算前臂旋转、桡舟状骨和桡月状运动作为腕位的功能。所有的志愿者都通过腕关节从桡侧伸展到尺侧屈曲的运动路径来完成模拟锤击任务，该运动路径与矢状面平均为41±3°。这些路径不通过腕部解剖中性位；相反，它们通过中性锤击位置，其延伸偏移了36°±8°。舟状骨和月骨的旋转不是最小的，但平均分别占手腕总运动的40%和41%。任务中前臂前旋的范围平均为12±8°。模拟的锤击任务是通过腕关节的斜向运动来完成的，从桡侧伸展到尺侧屈曲。与单纯腕关节屈伸时的旋转相比，舟状骨和月骨的旋转明显减少，但不是最小化。这可能是由于在整个研究过程中，手腕位置一直保持伸展。
Hammering is a functional task in which the wrist generally follows a path of motion from a position of combined radial deviation and extension to combined ulnar deviation and flexion, colloquially referred to as a dart thrower's motion (DTM). The purpose of this study was to measure wrist and forearm motion and scaphoid and lunate kinematics during a simulated hammering task. We hypothesized that the wrist follows an oblique path from radial extension to ulnar flexion and that there would be minimal radiocarpal motion during the hammering task. 13 healthy volunteers consented to have their wrist and distal forearm imaged with computed tomography at five positions in a simulated hammering task. The kinematics of the carpus and distal radial ulnar joint were calculated using established markerless bone registration methods. The path of wrist motion was described relative to the sagittal plane. Forearm rotation and radioscaphoid and radiolunate motion were computed as a function wrist position. All volunteers performed the simulated hammering task using a path of wrist motion from radial extension to ulnar flexion that was oriented an average 41 ± 3° from the sagittal plane. These paths did not pass through the anatomic neutral wrist position; rather they passed through the neutral hammering position, which was offset by 36° ± 8° in extension. Rotations of the scaphoid and lunate were not minimal but averaged 40% and 41% respectively of total wrist motion. The range of forearm pronosupination during the task averaged 12 ± 8°. The simulated hammering task was performed using a wrist motion that followed an oblique path, from radial extension to ulnar flexion. Scaphoid and lunate rotations were significantly reduced, but not minimized, when compared with rotations during pure wrist flexion/extension. This is likely due to the fact that an extended wrist position was maintained throughout the entire task studied.
登录
查看更多内容
影响因子：
1.9
作者：
Werner, FW;Green, JK;Masaoka, S
通讯作者：
Masaoka, S
影响因子：
5.3
作者：
Moritomo, H;Murase, T;Yoshikawa, H
通讯作者：
Yoshikawa, H
影响因子：
2.4
作者：
Foumani, M.;Strackee, S. D.;Streekstra, G. J.
通讯作者：
Streekstra, G. J.
影响因子：
1.8
作者：
Moojen, TM;Snel, JG;Bos, KE
通讯作者：
Bos, KE
影响因子：
3.3
作者：
KONZ, S
通讯作者：
KONZ, S