Relationships between circulating catecholamines and low frequency heart period variability as indices of cardiac sympathetic activity during mental stress.

@article{Sloan1996RelationshipsBC,
  title={Relationships between circulating catecholamines and low frequency heart period variability as indices of cardiac sympathetic activity during mental stress.},
  author={Richard P. Sloan and Peter A. Shapiro and E Bagiella and J. Thomas Bigger and E. S. Lo and J. M. Gorman},
  journal={Psychosomatic medicine},
  year={1996},
  volume={58 1},
  pages={25-31}
}
Heart rate increases during psychological stress are the product of cardiac sympathetic activation and parasympathetic withdrawal. Levels of plasma epinephrine (E) and norepinephrine (NE) have a long history as indicators of cardiac adrenergic activity and, accordingly, generally increase in response to psychological challenge. Recently, several investigators have suggested that indices derived from power spectral analysis of heart period variability (HPV) also may provide estimates of cardiac… CONTINUE READING

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