SLEEP – EXERCISE IMPROVES SLEEP – AGING


1 RESEARCH ARTICLE


SLEEP DEPTH AND CONTINUITY BEFORE AND AFTER EXERCISE IN OLDER MEN – 2014


Melancon MO1, Lorrain D2, Dionne IJ1.
INTRODUCTION & PURPOSE
– Later in life sleep depth (slow-wave sleep, SWS) and maintenance exhibit deleterious changes, with possible -ve effects on daytime function
METHOD
– 13 men aged 64±3yrs had sleep measured for a total of 6 nights: 3 before and 3 after the 16-week training intervention
– Each sequence involved 1 familiarization trial followed by 2 experimental nights (exercise night; nonexercise night)
– The exercise challenges consisted of inclined treadmill brisk walking (60min, 68-69% V˙O2peak)
RESULTS
1. Exercise following training resulted in a 71% increase in SWS during subsequent sleep
2. Following training, acute exercise reduced total wake time by 30% and REM onset latency by 14%
3. Acute exercise improved sleep continuity by decreasing total wake time


 

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