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Morning and evening physical exercise differentially regulate the autonomic nervous system during nocturnal sleep in humans
Morning and evening exercise affect the body's automatic nervous system differently during night sleep
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Abstract
Evening exercise resulted in a 1.0-hour shift in the falling phase of plasma melatonin rhythm.
- Both morning and evening exercise caused a 1.1-hour delay in the rising phase of plasma melatonin rhythm.
- Stage 1+2 sleep decreased by 13.0% without exercise, while REM sleep decreased by 10.5% after evening exercise.
- Evening exercise attenuated the nocturnal decline of rectal temperature, unlike morning exercise.
- Heart rate variability during sleep showed an increase in very low frequency waves without exercise.
- Morning exercise enhanced parasympathetic activity, whereas evening exercise activated sympathetic activity during subsequent sleep.
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