Changes in lung volume and breathing pattern during exercise and CO2 inhalation in humans.

@article{Cha1987ChangesIL,
  title={Changes in lung volume and breathing pattern during exercise and CO2 inhalation in humans.},
  author={E J Cha and David Sedlock and S. M. Yamashiro},
  journal={Journal of applied physiology},
  year={1987},
  volume={62 4},
  pages={1544-50}
}
Lung volume changes during CO2 inhalation and exercise were compared in seven human subjects. Expiratory reserve volume (ERV) normalized by vital capacity (VC) was used as an index of end-expiratory lung volume (EELV). Work loads tried were 30, 60, and 90 W and inspired CO2 concentrations were 3.5 and 5.0%. Exercise at 30 W led to a significant decrease in EELV, by 7% VC (P less than 0.005), with no further change at higher levels of exercise (P greater than 0.1). Both 3.5 and 5.0% CO2… CONTINUE READING