Zefirov A L, Rezviakov N P, Poletaev G I, Ulumbekov E G, Volkov E M
Biull Eksp Biol Med. 1978 Oct;86(10):391-4.
Three groups of muscle fibers (dark, light, and intermediate) were revealed in the fibers of the frog sartorius muscle in examination of the succinate dehydrogenase (SDH) activity. There was revealed a reverse relationship between the diameter of the muscle fibers an the SDH activity in them. The external surface of sartorius muscle is chiefly represented by dark muscle fibers, whereas the internal one--by light ones. Microelectrode study demonstrated that the fibers of the external surface were characterized, in comparison with those of the internal one, by lesser action potentials, prolonged trace negative potential, low quant composition of the end plate potentials, high amplitude and low frequency of the end plate miniature potentials. Analysis of the data obtained demonstrated definite interrelationship between the histochemical profile of the muscle fibers of the frog sartorius muscle and their electrophysiological characteristics.
在对青蛙缝匠肌纤维进行琥珀酸脱氢酶（SDH）活性检测时，发现了三组肌纤维（深色、浅色和中间型）。研究发现肌纤维直径与其中的SDH活性呈负相关。缝匠肌的外表面主要由深色肌纤维构成，而内表面主要由浅色肌纤维构成。微电极研究表明，与内表面的纤维相比，外表面的纤维动作电位较小、负后电位延长、终板电位的量子成分低、终板微电位的幅度高且频率低。对所得数据的分析表明，青蛙缝匠肌肌纤维的组织化学特征与其电生理特性之间存在一定的相互关系。
