Effect of age and gender on sudomotor and cardiovagal function and blood pressure response to tilt in normal subjects.

@article{Low1997EffectOA,
  title={Effect of age and gender on sudomotor and cardiovagal function and blood pressure response to tilt in normal subjects.},
  author={Phillip A. Low and Jong C. Denq and Tonette L. Opfer-Gehrking and Peter J. Dyck and Peter O'Brien and Jeffrey Slezak},
  journal={Muscle & nerve},
  year={1997},
  volume={20 12},
  pages={1561-8}
}
Normative data are limited on autonomic function tests, especially beyond age 60 years. We therefore evaluated these tests in a total of 557 normal subjects evenly distributed by age and gender from 10 to 83 years. Heart rate (HR) response to deep breathing fell with increasing age. Valsalva ratio varied with both age and gender. QSART (quantitative sudomotor axon-reflex test) volume was consistently greater in men (approximately double) and progressively declined with age for all three lower… CONTINUE READING
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