Suzuki S, Tsuchiya T, Oshimi Y, Takei T, Sugi H
J Electron Microsc (Tokyo). 1989;38(1):60-3.
To study the effect of stretch on the hexagonal myofilament lattice in frog skeletal muscle fibers, the fibers were fixed at rest and during the isometric tetanus with or without stretch, and their cross sections were examined electron microscopically. The degree of disorder of the myofilament lattice as estimated by the Fourier transform and rotation methods in the digital image analysis was found to be largest during the isometeric tetanus with stretch and smallest during the isometeric tetanus without stretch, supporting the view that the stretch-induced force enhancement results from the disordering of the myofilament lattice.
为研究拉伸对青蛙骨骼肌纤维中六角形肌丝晶格的影响，将纤维在静息状态以及等长强直收缩时（有或无拉伸）进行固定，然后通过电子显微镜检查其横截面。通过数字图像分析中的傅里叶变换和旋转方法估计，肌丝晶格的无序程度在有拉伸的等长强直收缩时最大，在无拉伸的等长强直收缩时最小，这支持了拉伸诱导的力增强是由肌丝晶格无序化导致的观点。
