【摘要】 运动中摄氧量动力学是反映机体从运动开始到进入稳定工作状态所摄取氧气的动态变化过程,不同强度的运动,摄氧量动力学呈现出不同的多相特征。摄氧量动力学Ⅱ期相位的时间常数与大强度运动时出现的摄氧量动力学慢成分可能与机体乳酸堆积、运动单位募集、磷酸肌酸等供能物质利用以及机体运输和利用氧的能力有关。结合数学模型而进行的摄氧量动力学多相特征研究,为深入理解运动中机体内部的生理生化变化与适应过程以及对运动能力限制因素的理解提供了新的方法。更多还原

【Abstract】 Oxygen uptake kinetics reflects the oxygen dynamic change from the onset to the stabilization in exercise.Various kinetic characteristics are shown in different intensity of exercise.The time constant in the second phase and the slow component of oxygen uptake kinetics appeared in exercise of great intensity are possibly related to lactic accumulation,motor unit recruitment,the utilization of CP and the capability of transporting oxygen and utilizing oxygen.This study of multi-phase characters in oxygen uptake kinetics is carried out in combination with a mathematical model and has offered a new method for a further understanding of the change and adaptation in physiological mechanism in exercise and the limits of sports performance.更多还原