Thermoregulation and cardiac variability: a time-frequency analysis.

  title={Thermoregulation and cardiac variability: a time-frequency analysis.},
  author={Julian F. Thayer and Rachel E Nabors-Oberg and John J. Sollers},
  journal={Biomedical sciences instrumentation},
High heart rate variability (HRV) has been associated with more efficient autonomic control, allowing more responsivity and sensitivity to changing environmental demands. A number of specific periodicities have been identified in the spectra of cardiac time series. A high frequency component related to respiratory sinus arrhythmia, a low frequency component related to blood pressure variability, and a very low frequency component thought to reflect thermoregulation have been reported in the… CONTINUE READING

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