COMPARISON OF MAXIMAL ISOMETRIC HIP ABDUCTOR MUSCLE TORQUES BETWEEN HIP SIDES
COMPARISON OF MAXIMAL ISOMETRIC HIP ABDUCTOR MUSCLE TORQUES BETWEEN HIP SIDES
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DOI：
10.1093/ptj/68.4.496
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发表时间：
1988-04-01
期刊：
影响因子：
3.2
通讯作者：
COOK, TM
中科院分区：
文献类型：
--
作者：
NEUMANN, DA;SODERBERG, GL;COOK, TM
文献报道了许多健康的惯用右手的人因姿势引起的右髋外展肌“牵拉无力”。本研究的目的是测试跨多个髋部外展角度的髋部两侧之间产生的最大等长髋部外展扭矩的差异。使用专门的扭矩测试台在髋部外展角度为 -10、0、10、20、30 和 40 度时测量了 40 名健康的右手个体的扭矩。对结果的统计分析并未表明用于临床测试的髋部角处的右髋外展肌存在特定的“弱点”。然而，结果确实表明臀部两侧的扭矩-臀部角度斜率存在统计学上的显着差异。我们假设这些坡度差异可能是由于肌肉对站立姿势所施加的长度的适应造成的。我们讨论手动肌肉测试程序如何影响习惯性保持在接近最大伸长的肌肉出现拉伸无力的可能性。
A posturally induced “stretch weakness” of the right hip abductor muscles has been reported in many healthy right-handed persons in the literature. The purpose of this study was to test for differences in the maximal isometric hip abduction torque produced between hip sides across multiple hip abduction angles. The torques were measured on 40 healthy right-handed individuals using a specialized torque-testing table at hip abduction angles of −10, 0, 10, 20, 30, and 40 degrees. Statistical analysis of the results did not demonstrate a specific “weakness” of the right hip abductor muscles at the hip angle used to clinically test them. The results, however, did demonstrate statistically significant differences in the torque-hip angle slopes across hip sides. We hypothesized that these slope differences may result from muscle adaptation to lengths imposed by standing posture. We discuss how manual muscle testing procedures may bias the likelihood of encountering stretch weakness in muscles that are habitually maintained at near-maximal elongation.