Does cardiorespiratory endurance training affect ventilation?
Training does not affect resting VE, and it has little effect on VE during low-intensity exercise. If there is an effect of cardiorespiratory endurance training on ventilation, it is to lower VE at a given power output or VO2. The biggest effect of endurance training on VE comes at higher exercise intensities, when VE tends to increase out of proportion to VO2. At these higher intensities, training results in lower VE values at given levels of power output or VO2. This may relate to less acidosis at given exercise intensities after endurance training. Since ventilation involves muscular work and energy turnover, the training-induced reduction in VE at the higher exercise intensities is beneficialit reduces the overall work and energy cost of the exercise. Finally, training typically results in an increased maximal VE during exercise. This is part of what enables the trained person to exercise at higher intensities for longer periods of time. Training has little, if any, effect on lung
