Ventilatory muscles during exercise in air and oxygen in normal men.

  title={Ventilatory muscles during exercise in air and oxygen in normal men.},
  author={Peter T. P. Bye and Shane Esau and Keith R. Walley and Peter T. Macklem and Richard L. Pardy},
  journal={Journal of applied physiology: respiratory, environmental and exercise physiology},
  volume={56 2},
To determine whether normal ventilatory muscles fatigue during short-term high-intensity exercise, we measured diaphragmatic electromyogram (EMG, esophageal electrode), and pleural (Ppl), gastric (Pga), and transdiaphragmatic (Pdi) pressures in seven normal young men. On separate days, the subjects performed exercise to exhaustion at a constant work load (80% maximum power output) inspiring air or 40% O2. Before and after exercise, Pdimax and maximum expiratory pressure at the mouth (PEmax… CONTINUE READING
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