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１２名优秀中长跑运动员在跑台上进行递增负荷的运动过程中测定气体代谢各指标。结果表明：肺活量与ＶＯ２ｍａｘ呈正相关，ｒ＝０．７９９，Ｐ＜０．０１。在测定ＶＯ２ｍａｘ的运动过程中，呼吸频率与ＴＲＵＥＯ_２随强度的增加而递增，两者呈正相关，其相关系数分别在０．４６８－０．７８７之间，Ｐ＜０．０１，但在呼吸频率达到４４次／分后呼吸频率继续增长，而ＴＲＵＥＯ_２逐渐下降，呈负相关，ｒ＝－０．４２６至－０．９０７之间，Ｐ＜０．０１，ＴＲＵＥＯ_２的下降，反映了肺通气效率的下降，肺活量、呼吸频率的调节和ＴＲＵＥＯ_２的变化与ＶＯ２ｍａｘ的水平有着内在的联系。
Twelve excellent middle-distance and long-distance runners measured various indices of gas metabolism during the treadmill running with increasing load. The results showed that there was a positive correlation between vital capacity and VO2max, r = 0.799, P <0.01. During the measurement of VO2max, the respiratory rate and TRUEO2 increased with the increase of the intensity, the correlation between them was in the range of 0.468-0.787 (P <0.01), but when the respiratory rate reached The respiratory rate continued to increase after 44 beats / min, while TRUEO_2 decreased gradually, with a negative correlation, r = -0.426 to -0.907, P <0.01, and decreased TRUEO_2, reflecting a decrease in pulmonary ventilation efficiency , The vital capacity, the regulation of respiratory rate and the change of TRUEO_2 are intrinsically linked with the level of VO2max.