Comparison of heart rate variability and stroke volume variability

Hongjian Liu, Tomoyuki Yambe, Hiroshi Sasada, Shunsuke Nanka, Akira Tanaka, Ryoichi Nagatomi, Shin Ichi Nitta

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)


In order to compare the heart rate variability (HRV) and stroke volume variability (SVV), supine electrocardiographic (ECG) and the time series data of left ventricular (LV) volume recordings were taken in 12 healthy adult male volunteers. The low frequency (LF) and high frequency (HF) peaks of HRV and SVV were evaluated quantitatively by power spectral analysis. The fractal dimension (FD) of the time series data was analyzed by the box-counting method. A LF peak around 0.1 Hz and a HF peak around 0.3 Hz were as clearly observed in the SVV spectrum as in the HRV spectrum. The LF/HF ratio in SVV was significantly lower than that in HRV, while the FD was significantly higher in SVV than in HRV. No significant correlation of HF, LF or FD was observed between HRV and SVV. Our results indicate that SVV provides different information about the activity of the autonomic nervous system than HRV.

Original languageEnglish
Pages (from-to)69-75
Number of pages7
JournalAutonomic Neuroscience: Basic and Clinical
Issue number1-2
Publication statusPublished - 2004 Nov 30


  • Acoustic quantification
  • Fractal dimension
  • Heart rate variability
  • Power spectral analysis
  • Stroke volume variability


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