Reybrouck T, Ghesquiere J, Weymans M, Amery A
Int J Sports Med. 1986 Feb;7(1):26-9. doi: 10.1055/s-2008-1025730.
The ventilatory (anaerobic) threshold during short-term exercise has been defined as the O2 uptake (VO2) immediately below the VO2 at which pulmonary ventilation (VE) increases disproportionally relative to VO2 and the ventilatory threshold for long-term exercise as the VO2 immediately below the VO2 at which the VE continues to increase with time rather than attain a steady state. Maximal endurance performance was determined by measurement of the maximal endurance time during treadmill runs at 90%, and 70% of the previously determined VO2 max. The purpose of the present study was to investigate how maximal endurance performance was related to both ventilatory thresholds and to VO2max, and to select which variable best explained maximal endurance performance. The subjects were 11 healthy males. Maximal endurance performance was significantly correlated with the ventilatory threshold for long-term exercise and VO2max. A stepwise multiple regression analysis indicated that maximal endurance performance was best predicted by the ventilatory threshold for long-term exercise. Combination of variables could not improve the prediction. It is concluded that the ventilatory threshold for long-term exercise better explains maximal endurance performance than VO2max or the ventilatory threshold during short-term exercise.
短期运动期间的通气（无氧）阈值被定义为刚好低于肺通气量（VE）相对于摄氧量（VO2）不成比例增加时的VO2；长期运动的通气阈值则是指刚好低于VE随时间持续增加而非达到稳定状态时的VO2。通过在跑步机上以先前测定的最大摄氧量（VO2max）的90%和70%进行跑步，测量最大耐力时间来确定最大耐力表现。本研究的目的是调查最大耐力表现如何与通气阈值和VO2max相关，并选择哪个变量能最好地解释最大耐力表现。受试者为11名健康男性。最大耐力表现与长期运动的通气阈值和VO2max显著相关。逐步多元回归分析表明，长期运动的通气阈值能最好地预测最大耐力表现。变量组合并不能改善预测效果。结论是，长期运动的通气阈值比VO2max或短期运动的通气阈值能更好地解释最大耐力表现。
