Table 3.

Results of the four mixed-effects ANOVAs assessing the influence of the condition and group on HRV parameters

	F	df	p	η2
Heart rate
Condition	40.950	1, 26	<  0.001	0.612
Group	0.182	1, 26	0.673	0.007
Interaction	0.005	1, 26	0.942	<  0.001
SDNN
Condition	12.090	1, 26	0.002	0.317
Group	0.377	1, 26	0.545	0.014
Interaction	0.254	1, 26	0.619	0.010
Low frequency power
Condition	10.362	1, 26	0.003	0.285
Group	0.237	1, 26	0.631	0.009
Interaction	4.851	1, 26	0.037	0.157
High frequency power
Condition	3.140	1, 26	0.088	0.108
Group	0.032	1, 26	0.859	0.001
Interaction	0.442	1, 26	0.512	0.017

Groups: Controls (n = 14) and CIJD (n = 14); Condition: at rest and under stimulation

SDNN: Standard deviation of the R-wave to R-wave interval; Significant results (p <  0.05) are printed in bold