Title: Elevated Variance in Heart Rate During Slow-Wave Sleep After Late-Night Physical Activity
Authors: Bulckaert, Arnoud ×
Exadaktylos, Vasileios
Haex, Bart
De Valck, Elke
Verbraecken, Johan
Berckmans, Daniel #
Issue Date: Apr-2011
Publisher: Pergamon
Series Title: Chronobiology International vol:28 issue:3 pages:282-284
Abstract: This study investigates the effect of mild physical activity before bedtime on the sleep pattern and heart rate during the night. Nine healthy subjects underwent a habituation night, a reference night, and a physical induction night. The physical induction night did not alter the sleep pattern. Physical activity before bedtime resulted in higher heart rate variance during slow-wave sleep. The low-frequency/high-frequency component (LF/HF) ratio during slow-wave sleep in the physical induction night was significantly higher than during the reference night. Increased mean heart rate and higher LF/HF ratio are related to decreased parasympathetic dominance. Exercise up to 1 h before bedtime thus seems to modify the quality of sleep. (Author correspondence: ).
ISSN: 0742-0528
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Division M3-BIORES: Measure, Model & Manage Bioresponses (-)
Spin-off & Innovation
× corresponding author
# (joint) last author

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