Autonomic mechanisms in hemodynamic responses to isometric exercise.

@article{Martin1974AutonomicMI,
  title={Autonomic mechanisms in hemodynamic responses to isometric exercise.},
  author={Catherine E Martin and James Shaver and D F Leon and Mollie E Thompson and P. Sudhakar Reddy and J J Leonard},
  journal={The Journal of clinical investigation},
  year={1974},
  volume={54 1},
  pages={104-15}
}
Selective autonomic blockade with intravenous propranolol, practolol, atropine, and combined atropine-propranolol was utilized to elucidate the role of the autonomic nervous system in the hemodynamic responses in young adult male volunteers to handgrip sustained at 30% of maximal voluntary contraction for 3 min. The initial 30 s of the tachycardia response was found to be mediated by withdrawal of vagal dominance, as evidenced by blockade of this response by prior atropinization. The mid and… CONTINUE READING
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