Influence of ten-day head-down bedrest on human carotid baroreceptor-cardiac reflex function.

@article{Eckberg1992InfluenceOT,
  title={Influence of ten-day head-down bedrest on human carotid baroreceptor-cardiac reflex function.},
  author={Dwain L Eckberg and Jim Fritsch},
  journal={Acta physiologica Scandinavica. Supplementum},
  year={1992},
  volume={604},
  pages={69-76}
}
We studied the effects of simulated microgravity on baroreceptor-cardiac reflex mechanisms, with complex pressure changes delivered to neck chambers worn by six healthy young men, before, during (days 1, 3, 6, and 10), and after ten days' 6 degrees head-down bedrest. During held expiration, a computer-driven bellows increased neck pressure to 40 mmHg for about 4 s, and then decreased pressure to -65, by 15 mmHg R-wave triggered decrements. We plotted R-R intervals as functions of carotid… CONTINUE READING