Cross-sectional area of the thigh muscle in man measured by computed tomography.
Cross-sectional area of the thigh muscle in man measured by computed tomography.
复制标题
通过计算机断层扫描测量男性大腿肌肉的横截面积。
DOI：
10.1097/00004728-197908000-00205
复制
发表时间：
1978
影响因子：
2.1
通讯作者：
L. Kuhns
中科院分区：
文献类型：
--
作者：
T. Häggmark;E. Jansson;B. Svane;L. Kuhns
对9名不同训练背景的受试者进行股外侧肌活检。测量不同肌纤维类型的横切面积。通过使用软组织X射线技术，计算机断层扫描，在与活检相同的水平上产生大腿的横截面图片。从这张照片上测量股外侧肌的总横切面积。对这种从X射线照片测量横切肌肉面积的技术进行了评价，发现其准确性和可重复性。股外侧肌横切面积与平均肌纤维面积高度相关（r = 0.91; P <0.001）。估计股外侧肌中的纤维总数。可以得出结论，大腿肌肉的横截面积可以准确地确定通过计算机断层扫描。训练良好的受试者股外侧肌的横截面积较大，主要是由于纤维的横截面积较大，而股外侧肌中的纤维总数似乎在受试者之间相当相等。
Nine subjects with different training background were studied by means of muscle biopsy from musculus vastus lateralis. The cross-cut area of the different muscle fibre types was measured. By the use of a soft tissue X-ray technique, computed tomography, a cross-sectional picture of the thigh was produced at the same level as the biopsy was taken. The total cross-cut area of the vastus lateralis muscle was measured from this picture. This technique to measure a cross-cut muscle area from an X-ray picture was evaluated and found to be accurate and reproducible. The mean fibre area was highly correlated (r = 0.91; P less than 0.001) to the cross-cut area of the vastus lateralis muscle. The total number of fibres in the vastus lateralis muscle was estimated. It was concluded that the cross-sectional area of the thigh muscle can be accurately determined by means of computed tomography. The larger cross-sectional area of the vastus lateralis muscle in well trained subjects was primarily explained by a larger cross-sectional area of the fibre, while the total number of fibres in the vastus lateralis muscle seemed to be fairly equal among the subjects.