有氧训练强度与G耐力的研究

目的 为我军歼（强）击机飞行员有氧耐力训练方案的制定提供试验依据。方法 采用“训练心率法”控制训练强度，在跑步机上对20名健康男性进行12周定时定量的有氧耐力训练，依训练强度不同，分为2组，比较训练前后相关生理参数的变化。结果 训练后受试者的运动最大心率明显减少，最大耗氧量明显增加，且训练强度越大，效果越显著；体重、体脂、立位耐力及基础G耐力的变化不大。结论 训练强度为心率储备的60％－90％能够有效改善心肺功能，且不降低＋Gz耐力；经常性的有氧耐力训练能够保持良好的心肺功能。

A study on aerobic training intensity and +Gz tolerance

Objective To provide evidence for determining the aerobic training intensity in fighter pilots. Methods Twenty volunteers, including 9 physically active subjects and 11 sedentary subjects, were divided into 2 groups separately. They were asked to complete a 12 week aerobic training program (ATP) of various intensity on a treadmill controlled by heart rate conditioning method. Physiological parameters and G tolerance before and after ATP were measured and compared. Results The HRmax during exercise after ATP was significantly lower than that before ATP, while VO 2 max during exercise after ATP was significantly higher than that before ATP. The higher the exercise intensity, the more apparent the changes. However, no obvious change of relaxed G tolerance was observed in all 2 groups. Conclusions When the training heart rate was controlled in the range of 60% to 90% heart rate reserve, and the frequency of 30 min training was 2~3 times a week, the cardiopulmonary function can be kept in good condition without impairment of G tolerance.