Local architecture of the vastus intermedius is a better predictor of knee extension force than that of the other quadriceps femoris muscle heads
Local architecture of the vastus intermedius is a better predictor of knee extension force than that of the other quadriceps femoris muscle heads
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DOI：
10.1111/cpf.12173
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发表时间：
2015-09-01
影响因子：
1.8
通讯作者：
Akima, Hiroshi
中科院分区：
文献类型：
--
作者：
Ando, Ryosuke;Saito, Akira;Akima, Hiroshi
本研究的目的是确定每个股四头肌（QF）在多个区域的肌肉结构是否可以用来预测膝关节伸展力。在膝关节屈曲至90度时，使用QF各肌肉多个区域的超声图像测量肌肉厚度和笔触角度。根据沿大腿长度拍摄的超声图像估计股直肌（RF）、股外侧肌（VL）和股中间肌（VI）的肌束长度。利用前（抗- vi）和外侧（后- vi）的超声图像在两个不同的位置确定股中间肌的肌肉结构。最大自主收缩（MVC）是在膝关节90度角的等距膝关节伸展时测量的。采用逐步线性回归分析，以MVC力为因变量，检验MVC力与肌肉结构之间的关系。在第一步线性回归分析中，选择抗- vi的肌肉厚度作为自变量(R-2=066， P
The purpose of this study was to determine whether the muscle architecture of each head of the quadriceps femoris (QF) at multiple regions can be used to predict knee extension force. Muscle thickness and pennation angle were measured using sonographic images from multiple regions on each muscle of the QF with the knee flexed to 90 degrees. The fascicle lengths of the rectus femoris (RF), vastus lateralis (VL) and vastus intermedius (VI) muscles were estimated based on sonographic images taken along the length of the thigh. The muscle architecture of the vastus intermedius was determined in two separate locations using sonographic images of the anterior (ant-VI) and lateral portions (lat-VI). The maximal voluntary contraction (MVC) was measured during isometric knee extension at a knee joint angle of 90 degrees. The relationship between MVC force and muscle architecture was examined using a stepwise linear regression analysis with MVC force as the dependent variable. The muscle thickness of the ant-VI was selected as an independent variable in the first step of the linear regression analysis (R-2=066, P