Menstrual cycle variation and gender difference in muscle stiffness of triceps surae
Menstrual cycle variation and gender difference in muscle stiffness of triceps surae
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DOI：
10.1016/j.clinbiomech.2018.12.013
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发表时间：
2019-01-01
影响因子：
1.8
通讯作者：
Ichihashi, Noriaki
中科院分区：
文献类型：
--
作者：
Saeki, Junya;Ikezoe, Tome;Ichihashi, Noriaki
背景：我们旨在探讨月经周期变化和性别差异的三头肌表面僵硬和踝关节被动僵硬。方法：选取12名健康青年女性和12名健康青年男性作为研究对象。利用剪切波弹性成像测量腓肠肌外侧、腓肠肌内侧和比目鱼肌的剪切弹性模量，作为肌肉刚度的指标。根据踝关节被动背屈时的被动力矩计算踝关节的被动刚度。在卵泡期、排卵期和黄体期进行测量，以检查月经周期的变化。结果：在月经周期中，年轻女性的被动僵硬或三头肌僵硬没有差异。性别差异方面，各月经期女性被动僵硬度均低于男性，而比目鱼肌僵硬度高于男性。解释：我们的研究结果表明，被动僵硬和肌肉僵硬在月经周期中没有差异。此外，女性比目鱼的测量部分比男性更紧张。
Background: We aimed to investigate the menstrual cycle variation and the gender difference of the triceps surae muscle stiffness and passive stiffness of the ankle joint.Methods: The subjects of the study included 12 healthy young women and 12 healthy young men. Shear elastic moduli of the lateral gastrocnemius, medial gastrocnemius, and soleus muscles were measured as an index of muscle stiffness using shear wave elastography. The passive stiffness of the ankle joint was calculated from passive torque when the ankle joint was passively dorsiflexed. Measurements were conducted in the follicular, ovulatory, and luteal phases to examine the menstrual cycle variation.Findings: There was no difference noted in the passive stiffness or triceps surae muscle stiffness for young women in the menstrual cycle. As for gender differences, passive stiffness in all menstrual phases in women was lower while the soleus muscle stiffness in women was higher, compared to that in men.Interpretation: Our findings suggest that passive stiffness and muscle stiffness did not differ in the menstrual cycle. In addition, the measured part of the soleus was more tensioned in women than in men.