Torso muscle moment arms at intervertebral levels T10 through L5 from CT scans on eleven male and eight female subjects.
Torso muscle moment arms at intervertebral levels T10 through L5 from CT scans on eleven male and eight female subjects.
复制标题
对 11 名男性和 8 名女性受试者进行 CT 扫描，显示 T10 至 L5 椎间水平的躯干肌肉力臂。
DOI：
10.1097/00007632-199311000-00028
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发表时间：
1993
期刊：
影响因子：
3
通讯作者：
Nussbaum,MA
中科院分区：
文献类型：
--
作者：
Moga,PJ;Erig,M;Chaffin,DB;Nussbaum,MA
根据 19 组计算机断层扫描 (CT) 扫描获得的数据估算了 8 对躯干肌肉的力臂。相对于椎体中心，腹直肌、腹外斜肌、腹内斜肌、腹横肌、背阔肌、腰肌、腰方肌和竖脊肌的肌肉质心位置被识别和数字化，这也是从 8 名女性和 11 名男性的扫描中确定的。然后将肌肉力臂计算为肌肉和椎体质心之间的距离。每个躯干肌肉的质心被绘制在从 T10-11 到 L4-L5 的每个椎间水平上。当这些切片以头尾方式排序时，可以追踪对于确定肌肉力量作用线至关重要的质心线路径。最后，将身高、体重、躯干深度、宽度和年龄等人体测量变量与力臂组平均值进行回归，以开发几个预测方程，这些方程将根据这些人体测量变量确定力臂长度。
Moment arms for eight pairs of torso muscles were estimated based on data obtained from 19 sets of computed tomography (CT) scans. Muscle centroid locations of the rectus abdominis, external oblique, internal oblique, transversus abdominis, latissimus dorsi, psoas, quadratus lumborum, and the erector spinae mass were Identified and digitized relative to vertebral body centers, which were also determined from the scans of the eight females and eleven males. Muscle moment arms were then calculated as the distance between the muscle and vertebral body centroids. The centroids for each torso muscle were plotted at each intervertebral level from T10–11 to L4–L5. When these sections were ordered in a cephalocaudad manner, the centroid-line paths, essential to the determination of muscle force lines-of-action, could be traced. Finally, anthropometric variables such as height, weight, torso depth, breadth, and age were regressed against the moment arm group means to develop several prediction equations that would determine moment arm lengths based on these anthropometric variables.