Impaired control of heart rate leads to increased blood pressure variability.

@article{Conway1984ImpairedCO,
  title={Impaired control of heart rate leads to increased blood pressure variability.},
  author={James Conway and Nico Boon and John S. Floras and J Vann Jones and Peter J. Sleight},
  journal={Journal of hypertension. Supplement : official journal of the International Society of Hypertension},
  year={1984},
  volume={2 3},
  pages={S395-6}
}
Blood pressure variability has been studied from 24-h direct arterial pressure recordings in 109 subjects (36 normals and 73 hypertensives). Baroreflex sensitivity was also measured. From the 24-h record a linear relationship was found between systolic pressure and heart period. The slope was related to baroreflex sensitivity (r = 0.66, P less than 0.001… CONTINUE READING