Table 2.

Nocturnal physiological data collected in N - 1 session.

Variables		Inclusion
Nocturnal	Mean (±SD) sleep duration (min)	407(±42)
Actimetry	Micro-awakening duration (min)	45
	Sleep efficiency index (%)	89
	Sleep fragmentation index (%)	30
	Mean (±SD) easiness to go to sleep (min)	2
Mean (±SD) nocturnal heart rate variability (LF/HF)		1.32(±0.77)

SD, standard deviation; Min, minutes; LF/HF, low frequency/high frequency.