Diurnal heart rate variability in healthy subjects: effects of aging and sex difference.

Abstract

To study the effects of aging and gender, circadian profiles of heart rate variability were evaluated for 105 healthy volunteers by frequency domain analysis of a Holter electrocardiogram record. The low-frequency (LF) component representing cardiac beta-adrenergic function showed high values for the 0800-1200 period in male subjects and the 1200-2400… (More)

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@article{Yamasaki1996DiurnalHR, title={Diurnal heart rate variability in healthy subjects: effects of aging and sex difference.}, author={Yoshimitsu Yamasaki and Michiyo Kodama and Munehide Matsuhisa and Mitsumasa Kishimoto and Hiroshi Ozaki and Akihiro Tani and Natsuo Ueda and Yasushi Ishida and Takenobu Kamada}, journal={The American journal of physiology}, year={1996}, volume={271 1 Pt 2}, pages={H303-10} }