Table 2.

Sleep Architecture (mean ± standard error).

Parameters	Control	Exercise	p
	Mean	Mean
Total bedtime (min)	480.0	480.0
Total sleep time (min)	449.8 ± 8.1	459.6 ± 5.9	0.14
Wakefulness (min)	21.9 ± 7.1	15.5 ± 4.0	0.36
Sleep latency (min)	5.6 ± 1.9	4.6 ± 1.7	0.43
Sleep efficiency (%)	93.5 ± 1.6	95.5 ± 1.2	0.15
Stage 1 (min)	42.3 ± 5.0	48.2 ± 5.2	0.20
Stage 2 (min)	228.5 ± 10.5	236.6 ± 11.4	0.25
SWS (min)	101.6 ± 7.2	90.8 ± 6.9	0.01**
REM sleep (min)	76.4 ± 4.7	82.6 ± 8.7	0.53
REM sleep latency (min)	107.7 ± 14.2	80.1 ± 7.6	0.03*

SWS slow-wave sleep, REM rapid eye movement.

*p < 0.05, **p < 0.01.