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训练对凤头潜鸭(Aythya fuligula)运动肌肉最大摄氧量和有氧能力的影响。

Effect of training on maximal oxygen uptake and aerobic capacity of locomotory muscles in tufted ducks, Aythya fuligula.

作者信息

Butler P J, Turner D L

机构信息

Department of Zoology and Comparative Physiology, University of Birmingham.

出版信息

J Physiol. 1988 Jul;401:347-59. doi: 10.1113/jphysiol.1988.sp017166.

Abstract
  1. The effects of artificial swim training on maximal oxygen consumption and heart rate, as well as on the capillarity and oxidative capacity of locomotory muscles, have been studied in the tufted duck, Aythya fuligula. 2. The artificial training programme resulted in a 27% increase in maximal oxygen consumption, mainly as a result of an increase in muscle capillarity (20% increase in capillary/fibre ratio). In addition, activity of an oxidative enzyme, citrate synthase, increased (by 42%) and there was a significant transformation of fibre types in the lateral gastrocnemius muscle. 3. Altering the duration and nature of the training stimulus, for example flying and diving, can bring about different degrees of muscular adaptation, particularly in oxidative capacity.
摘要
  1. 研究人员已在凤头潜鸭(Aythya fuligula)身上探究了人工游泳训练对最大耗氧量、心率以及对运动肌肉的毛细血管密度和氧化能力的影响。2. 人工训练计划使最大耗氧量增加了27%,这主要是由于肌肉毛细血管密度增加(毛细血管/纤维比率增加了20%)。此外,氧化酶柠檬酸合酶的活性增加了(42%),并且腓肠外侧肌的纤维类型发生了显著转变。3. 改变训练刺激的持续时间和性质,例如飞行和潜水,可以带来不同程度的肌肉适应性变化,尤其是在氧化能力方面。

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