The effect of the cigarette smoking on the cardio-vascular system among young athletes

目得：本研究旨在探讨吸烟对青少年运动员心血管系统及身体素质的影响。最大摄氧量随戒烟时间的延长而增加，但无氧功无明显改善。副交感神经系统的激活水平随着戒烟而提高.戒烟后静息心率每分钟下降10次。在4kp无氧运动中，以每分钟20次的速度增加，在间歇时间内立即下降.戒烟6天后，耐力素质明显提高.无氧功率的变化存在个体差异。心率对运动的反应通过提高副交感神经系统的激活水平而改变。

PURPOSE : The purpose of this study was to investigate the effect of the cigarette smoking on the cardio-vascular system and the physical fitness among young athletes.Summary are as follows :1. VO2 max was improved by the abstinence from the cigarette smoking; however, no improvement was found in the performance of anaerobic power. Activation levels of the parasympathetic nervus system improved with abstinence from smoking.2. The resting heart rate of decreased 10 per minute after abstinence from smoking. It increased in 20 per minute during 4 kp anaerobic exercise and immediately decreased in interval time.3. The 6 days abstinence from cigarette smoking improved the endurance physical fitness. Difference among individuals was found in the change on anaerobic power. Heart rate responses to the exercise changed by the improved activation levels of the parasympathetic nervus system.