Ekblom B
Acta Physiol Scand Suppl. 1986;556:15-9.
Maximal aerobic power is the highest peak oxygen uptake that an individual can obtain during dynamic exercise using large muscle groups during a few minutes performed under normal conditions at sea level. In most subjects maximal aerobic power is limited by the central circulation. It is obvious that stroke volume is one very important factor. Another important one is the oxygen content of the arterial blood. If the oxygen content of the arterial blood is increased the maximal aerobic power and physical performance is increased. If it is decreased--except when there is an acute volume expansion--or if the heart rate is depressed the circulation can not compensate for it and the maximal aerobic power is decreased. Certain mainly external factors like drugs or induced hypothermia influences on circulation, thus reducing maximal aerobic power and physical performance. Despite all these possible ways of influencing circulation during maximal exercise, it is interesting to note that repeated measurements of maximal aerobic power show a fairly low variation from day to day.
最大有氧能力是指个体在海平面正常条件下，使用大肌群进行几分钟动态运动时所能获得的最高摄氧量峰值。在大多数受试者中，最大有氧能力受中枢循环的限制。显然，每搏输出量是一个非常重要的因素。另一个重要因素是动脉血的氧含量。如果动脉血的氧含量增加，最大有氧能力和身体表现就会提高。如果动脉血的氧含量降低（急性血容量增加的情况除外），或者心率降低，循环系统就无法代偿，最大有氧能力就会下降。某些主要的外部因素，如药物或人工诱导的低温，会影响循环，从而降低最大有氧能力和身体表现。尽管在最大运动期间有所有这些可能影响循环的方式，但有趣的是，最大有氧能力的重复测量显示，每天之间的变化相当小。
