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The effect of age on the heart rate variability of healthy subjects

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  • Leopoldo Garavaglia
  • Damián Gulich
  • Magdalena M Defeo
  • Julieta Thomas Mailland
  • Isabel M Irurzun

Abstract

In this work we study the characteristics of heart rate variability (HRV) as a function of age and gender. Our analysis covers a wider age range than that studied so far. It includes results previously reported in the literature and reveals behaviours not reported before. We can establish basic scale relationships in different HRV measurements. The mean value of the RR intervals shows a power-law behaviour independent of gender. Magnitudes such as the standard deviation or pNN50 show abrupt changes at around the age of 12 years, and above that age they show gender dependence, which mainly affects short-time (or high frequency) scales. We present a unified analysis for the calculation of the non-linear α and β parameters. Both parameters depend on age; they increase in the extremes of life and reach a minimum at around one year of age. These gender-independent changes occur at low frequencies and in scale ranges that depend on age. The results obtained in this work are discussed in terms of the effects of basal metabolic rate, hormonal regulation, and neuronal activity on heart rate variability. This work finally discusses how these findings influence the interpretation of HRV measurements from records of different lengths.

Suggested Citation

  • Leopoldo Garavaglia & Damián Gulich & Magdalena M Defeo & Julieta Thomas Mailland & Isabel M Irurzun, 2021. "The effect of age on the heart rate variability of healthy subjects," PLOS ONE, Public Library of Science, vol. 16(10), pages 1-20, October.
    • Handle: RePEc:plo:pone00:0255894
    DOI: 10.1371/journal.pone.0255894
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    1. Andreas Voss & Rico Schroeder & Andreas Heitmann & Annette Peters & Siegfried Perz, 2015. "Short-Term Heart Rate Variability—Influence of Gender and Age in Healthy Subjects," PLOS ONE, Public Library of Science, vol. 10(3), pages 1-33, March.
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