Table 2.

Sleep–wake cycle parameters in the 48 h experiment

	Wake	NREM	REM sleep	Total sleep
sd	93.9 ± 0.75*†‡	6.61 ± 0.75*†‡	0.004 ± 0.001*†‡	6.62 ± 0.75*†‡
CT1	62.97 ± 2.11*†	34.58 ± 1.76*†	2.47 ± 0.59*	37.04 ± 2.11*†
CT2	54.38 ± 1.52‡	41.76 ± 1.34‡	3.88 ± 0.35	45.64 ± 1.51‡
CC	47.79 ± 1.18	43.18 ± 1.21	9.08 ± 0.40	52.26 ± 1.19

The table shows the percentage of time spent in the different stages of the sleep–wake cycle. Results are presented as average for the entire 48 h recording session. CC, cage control group; SD, sleep deprivation group; CT1, control treadmill 1 group (15 min on/60 min off); CT2, control treadmill 2 group (30 min on/120 min off). Data are means ±s.e.m. for groups of 8 rats each.

^*P < 0.001 versus CC

^†P < 0.001 versus CT2

^‡P < 0.001 versus CT1. One-way ANOVA, followed by Bonferroni's post hoc test.