肌肉疲劳的数学模型。第三部分。肌纤维分类与力竭代谢

Mathematical model of muscular fatigue. Part III. Classification of muscular fibres versus metabolism of exhaustion.

作者信息

Valentini F A, Nelson P P

出版信息

Int J Biomed Comput. 1986 Jul;19(1):63-78. doi: 10.1016/0020-7101(86)90037-1.

Abstract

In order to modelize muscular fatigue, use and depletion of energizing stores are incorporated in the previously elaborated model. The role of muscle glycogen is crucial in sustained muscular contractions. Two patterns of muscular exhaustion are described: one is related to glycogen depletion (S and FR fibres) and the other to an unphysiological drop in ATP concentrations (FF fibres). Thus, the muscle fibre recruitment can be related to its theoretical metabolism of exhaustion. The importance of the muscle lactate level is connected to the glucose entry into the muscle cell and the rigor mortis. Computations have been carried out on a computer DPS 7.

摘要

为了模拟肌肉疲劳，在先前构建的模型中纳入了能量储备的利用和消耗情况。肌肉糖原在持续的肌肉收缩中起着关键作用。描述了两种肌肉疲劳模式：一种与糖原耗竭有关（慢肌纤维和快收缩抗疲劳纤维），另一种与三磷酸腺苷（ATP）浓度的非生理性下降有关（快肌纤维）。因此，肌肉纤维的募集与其理论上的疲劳代谢有关。肌肉乳酸水平的重要性与葡萄糖进入肌肉细胞以及尸僵有关。已在一台DPS 7计算机上进行了计算。