Why the study?
Can power spectrum analysis of heart rate variability assess changes in sympathovagal balance during graded orthostatic tilt?
Can power spectrum analysis of heart rate variability assess changes in sympathovagal balance during graded orthostatic tilt?
Spectral analysis of heart rate variability using nu or LF-to-HF ratio provides a noninvasive method to quantitatively evaluate sympathovagal balance changes.
HRV spectral analysis may aid noninvasive sympathovagal monitoring; leaves open prospective validation before routine use.
Spectral analysis of HRV, using nu or LF-to-HF ratio, appears to be capable of providing a noninvasive quantitative evaluation of graded changes in the state of the sympathovagal balance.
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Montano et al. (1994) studied this question.
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