Hypercapnic vs. hypoxic control of cardiovascular, cardiovagal, and sympathetic function.

@article{Steinback2009HypercapnicVH,
  title={Hypercapnic vs. hypoxic control of cardiovascular, cardiovagal, and sympathetic function.},
  author={Craig D Steinback and Deborah A. Salzer and Philip J. Medeiros and J. Kowalchuk and J. Kevin Shoemaker},
  journal={American journal of physiology. Regulatory, integrative and comparative physiology},
  year={2009},
  volume={296 2},
  pages={R402-10}
}
We compared the integrated cardiovascular and autonomic responses to hypercapnia and hypoxia to test the hypothesis that these stimuli differentially affect muscle sympathetic nerve activity (MSNA) discharge patterns and cardiovagal and sympathetic baroreflex function in a manner related to ventilatory chemoreflex sensitivity. Six males and six females underwent 5 min of hypoxia (end-tidal Po2 = 45 Torr) and 5 min of hypercapnia (end-tidal Pco2 = +8 Torr from baseline), causing similar… CONTINUE READING
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