MUSCLE ARCHITECTURE OF THE HUMAN LOWER-LIMB
MUSCLE ARCHITECTURE OF THE HUMAN LOWER-LIMB
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DOI：
10.1097/00003086-198310000-00042
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发表时间：
1983-01-01
影响因子：
4.2
通讯作者：
EDGERTON, VR
中科院分区：
文献类型：
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作者：
WICKIEWICZ, TL;ROY, RR;EDGERTON, VR
测定了三具人体尸体的主要膝关节伸屈肌和踝关节足底屈肌和背屈肌的结构特征。在一个给定的肌肉中，纤维长度有明显的均匀性，在一个协同组的肌肉中，纤维长度趋于相似。三肢的肌肉长度/纤维长度比非常相似。纤维钉扎角度相对较小（0-15），整个肌肉大体一致。从这些结构数据中，研究了肌肉的张力产生和缩短电位的速度。张力是平行肌节数的函数，缩短速度是串联肌节数的函数。肌肉根据它们是否表现出张力或缩短速度的偏好进行分组。
The architectural features of the major knee extensors and flexors and ankle plantar flexors and dorsiflexors were determined in three human cadavers. There was marked uniformity of fiber length throughout a given muscle and a trend toward similar fiber lengths within muscles of a synergistic group. Muscle length/fiber length ratios were remarkably similar for all three limbs. Angles of fiber pinnation were relatively small (0-15) and generally consistent throughout the muscle. From these architectural data, the performance of a muscle was studied with respect to its tension production and velocity of shortening potentials. The tension is a function of the number of sarcomeres in parallel, and the velocity of shortening is a function of the number of sarcomeres in series. Muscles were grouped according to whether they showed a predilection for tension or velocity of shortening.