Kometani K, Yamada K
Jpn J Physiol. 1984;34(3):389-96. doi: 10.2170/jjphysiol.34.389.
The thermoelasticity in rigor muscle was investigated using chemically skinned frog sartorius muscles. The use of chemically skinned muscles enabled us to study the thermoelasticity under various intracellular circumstances. Effects on the thermoelasticity of the presence or the absence of Ca and the lowering of pH in the rigor solution were investigated. All values of the thermoelastic heat: tension ratios obtained under various circumstances were within the range reported for active muscles. In rigor state, the cross-bridges are fixed on the thin filaments and head can no longer rotate. Hence the present results indicate that the thermoelasticity in active muscles originates from the thermoelasticity of the myofilaments or the cross-bridges.
利用化学去膜的青蛙缝匠肌研究了强直肌肉中的热弹性。使用化学去膜肌肉使我们能够研究在各种细胞内环境下的热弹性。研究了强直溶液中钙的存在与否以及pH降低对热弹性的影响。在各种情况下获得的热弹性热与张力之比的所有值都在已报道的活性肌肉的范围内。在强直状态下，横桥固定在细肌丝上，头部不再旋转。因此，目前的结果表明，活性肌肉中的热弹性起源于肌丝或横桥的热弹性。
