Spencer G S, Eccles M J
J Neurol Sci. 1976 Nov;30(1):143-54. doi: 10.1016/0022-510x(76)90262-8.
The development of the computer-controlled microscope system described has made it possible to estimate accurately the contribution made to the muscle fibre population by both Type 1 and Type 2 fibres. This method is more convenient, and at least as accurate as manual methods. It is also possible to measure the size of the individual fibres using this system. The system has been applied to this study of the spinal muscles in scoliosis. The results show that there is a difference in the ratio of Type 1 to Type 2 fibres in the spinal muscles on the 2 sides of the curve. The difference is found only at the apex of the curve. The results demonstrate that there are more Type 2 fibres on the concavity of the curve at the level of the apex. This difference is due to a disparity in the number of each fibre type rather than a difference in their relative sizes. The imbalance of Type 1 fibres at the apex of the curve may provide a sustained muscle pull on the spine so causing a curve convex to that side.
所述计算机控制显微镜系统的开发使得准确估计1型和2型纤维对肌纤维群体的贡献成为可能。这种方法更方便，并且至少与手动方法一样准确。使用该系统还可以测量单个纤维的大小。该系统已应用于脊柱侧弯患者脊柱肌肉的此项研究。结果表明，曲线两侧脊柱肌肉中1型与2型纤维的比例存在差异。这种差异仅在曲线顶点处发现。结果表明，在顶点水平处，曲线凹侧的2型纤维更多。这种差异是由于每种纤维类型数量的不同，而非其相对大小的差异。曲线顶点处1型纤维的失衡可能会对脊柱产生持续的肌肉拉力，从而导致向该侧凸出的曲线。
