TABLE 4.

Descriptive results of the familiarisation period of the variables with significant differences in the 2 × 2 ANOVA.

	Placebo group			NNT group
Stress (1–7 AU)	2.83	±	1.07	2.77	±	0.63
Lowest HR (bpm)	47.2	±	2.85	43.3	±	4.24
Average HR (bpm)	53.7	±	3.67	48.3	±	5.62
Awake time (h)	1.38	±	0.42	1.37	±	0.53

Note. NNT, is NESA, neuromodulation treatment; HR, is heart rate; HRV, is heart rate variability.