Spectrum analysis of sympathetic nerve activity and blood pressure in conscious rats.

  title={Spectrum analysis of sympathetic nerve activity and blood pressure in conscious rats.},
  author={Pontus Persson and Harald M. Stauss and Oliver Chung and Uwe Wittmann and Thomas Unger},
  journal={The American journal of physiology},
  volume={263 5 Pt 2},
This study tests whether the power spectrum of blood pressure (BP) provides information toward the sympathovagal balance of BP control by comparing the BP (femoral arterial catheter) spectrum with the spectrum of the efferent sympathetic nerve activity (SNA, bipolar electrode around splanchnic nerve). A remarkable resemblance between both spectra was found. A high-frequency component (HF) linked to respiration and a slower fluctuation type between 0.15 and 0.6 Hz (LF) were identified. There was… CONTINUE READING


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