Stephenson D G, Forrest Q G
Biochim Biophys Acta. 1980 Feb 8;589(2):358-62. doi: 10.1016/0005-2728(80)90052-3.
Skinned muscle fibres prepared from fast and slow twitch muscles of rat have been activated in Ca2+-buffered solutions using a new activation procedure (Moisescu, D.G. and Thieleczek, R. (1978) J. Physiol. 275, 241--262). The results indicate that (i) the Ca2+ activation curve is less steep for slow fibres, (ii) physiologically relevant force levels are attained considerably faster at constant [Ca2+] in fast fibres, and (iii) active force becomes noticeable at lower [Ca2+], but reaches saturation at higher [Ca2+] for slow fibres.
利用一种新的激活程序（Moisescu, D.G.和Thieleczek, R.（1978年）《生理学杂志》275卷，241 - 262页），在Ca2 +缓冲溶液中激活了从大鼠的快肌和慢肌制备的去皮肌纤维。结果表明：（i）慢肌纤维的Ca2 +激活曲线较平缓；（ii）在快肌纤维中，在恒定[Ca2 +]条件下，生理相关的力水平达到得相当快；（iii）慢肌纤维在较低[Ca2 +]时主动力变得明显，但在较高[Ca2 +]时达到饱和。
