Effects of hamstring stretching on passive muscle stiffness vary between hip flexion and knee extension maneuvers
Effects of hamstring stretching on passive muscle stiffness vary between hip flexion and knee extension maneuvers
复制标题
DOI：
10.1111/sms.12620
复制
发表时间：
2017-01-01
影响因子：
4.1
通讯作者：
Kanehisa, H.
中科院分区：
文献类型：
--
作者：
Miyamoto, N.;Hirata, K.;Kanehisa, H.
本研究的目的是检查腘绳肌拉伸对股二头肌长头（BFI）、半腱肌（ST）和半膜肌（SM）中的每一个的被动刚度的影响是否在被动膝关节伸展和髋关节屈曲拉伸动作之间变化。在12名男性受试者中，在五组90 s静态拉伸之前和之后，进行被动延长测量，其中膝关节或髋关节被动旋转到最大活动范围（ROM）。在被动延长过程中，通过超声剪切波弹性成像测量每块肌肉的剪切模量。在给定的关节角度下，两种伸展动作均显著增加了最大ROM，降低了被动扭矩。在BF1、ST和SM中，在给定的膝关节角度下，被动膝伸展伸展动作显著降低了剪切模量。相反，被动髋关节屈曲动作的拉伸效应仅在ST和SM中显著。目前的研究结果表明，腘绳肌拉伸对个体被动肌肉刚度的影响在被动膝关节伸展和髋关节屈曲拉伸动作之间存在差异。在减少BF1的肌肉僵硬方面，腿筋的拉伸应该通过被动膝关节伸展而不是髋关节屈曲来执行。
The purpose of this study was to examine whether the effects of hamstring stretching on the passive stiffness of each of the long head of the biceps femoris (BFl), semitendinosus (ST), and semimembranosus (SM) vary between passive knee extension and hip flexion stretching maneuvers. In 12 male subjects, before and after five sets of 90s static stretching, passive lengthening measurements where knee or hip joint was passively rotated to the maximal range of motion (ROM) were performed. During the passive lengthening, shear modulus of each muscle was measured by ultrasound shear wave elastography. Both stretching maneuvers significantly increased maximal ROM and decreased passive torque at a given joint angle. Passive knee extension stretching maneuver significantly reduced shear modulus at a given knee joint angle in all of BFl, ST, and SM. In contrast, the stretching effect by passive hip flexion maneuver was significant only in ST and SM. The present findings indicate that the effects of hamstring stretching on individual passive muscles' stiffness vary between passive knee extension and hip flexion stretching maneuvers. In terms of reducing the muscle stiffness of BFl, stretching of the hamstring should be performed by passive knee extension rather than hip flexion.