Spectral analysis of heart rate, arterial pressure, and muscle sympathetic nerve activity in normal humans.

@article{Nakata1998SpectralAO,
  title={Spectral analysis of heart rate, arterial pressure, and muscle sympathetic nerve activity in normal humans.},
  author={Akio Nakata and Shigeo Takata and Toyoshi Yuasa and Atsuhiro Shimakura and Michiro Maruyama and Hideo Nagai and Satoru Sakagami and K N Kobayashi},
  journal={American journal of physiology. Heart and circulatory physiology},
  year={1998},
  volume={274 4},
  pages={H1211-H1217}
}
We investigated the frequency components of fluctuations in heart rate, arterial pressure, respiration, and muscle sympathetic nerve activity (MSNA) in 11 healthy women using an autoregressive model and examined the relation among variables using Akaike's relative power contribution analysis with multivariate autoregressive model fitting. Power spectral analysis of MSNA revealed two peaks, with low-frequency (LF) and high-frequency (HF) components. The LF component of MSNA was a major… CONTINUE READING

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