猫腓肠肌、比目鱼肌和跖肌的力-长度特性及功能需求。

Force-length properties and functional demands of cat gastrocnemius, soleus and plantaris muscles.

作者信息

Herzog W, Leonard T R, Renaud J M, Wallace J, Chaki G, Bornemisza S

机构信息

Faculty of Physical Education, University of Calgary, Alberta, Canada.

出版信息

J Biomech. 1992 Nov;25(11):1329-35. doi: 10.1016/0021-9290(92)90288-c.

DOI:10.1016/0021-9290(92)90288-c

PMID:1400534

Abstract

The purpose of this study was to measure isometric force-length properties of cat soleus, gastrocnemius and plantaris muscle-tendon units, and to relate these properties to the functional demands of these muscles during everyday locomotor activities. Isometric force-length properties were determined using an in situ preparation, where forces were measured using buckle-type tendon transducers, and muscle-tendon unit lengths were quantified through ankle and knee joint configurations. Functional demands of the muscles were assessed using direct muscle force measurements in freely moving animals. Force-length properties and functional demands were determined for soleus, gastrocnemius and plantaris muscles simultaneously in each animal. The results suggest that isometric force-length properties of cat soleus, gastrocnemius and plantaris muscles, as well as the region of the force-length relation that is used during everyday locomotor tasks, match the functional demands.

摘要

本研究的目的是测量猫比目鱼肌、腓肠肌和跖肌的等长力-长度特性，并将这些特性与这些肌肉在日常运动活动中的功能需求相关联。使用原位制备方法确定等长力-长度特性，其中使用扣式肌腱换能器测量力，并通过踝关节和膝关节的构型对肌肉-肌腱单元长度进行量化。在自由活动的动物中使用直接肌肉力测量来评估肌肉的功能需求。在每只动物中同时测定比目鱼肌、腓肠肌和跖肌的力-长度特性和功能需求。结果表明，猫比目鱼肌、腓肠肌和跖肌的等长力-长度特性，以及日常运动任务中使用的力-长度关系区域，与功能需求相匹配。