Table 2.

Phase angle of heart rate coherence according to condition (C1–4) of original (orig) and control analysis (rand). No statistically significant differences across conditions.

		Phase angle (π)
		C1_orig	C2_orig	C3_orig	C4_orig	C1_rand	C2_rand	C3_rand	C4_rand
HF	Mean	0.088	− 0.203	− 0.030	0.153	0.160	0.173	− 0.005	0.120
	SD	0.319	0.345	0.373	0.285	0.296	0.344	0.321	0.262
LF	Mean	− 0.071	− 0.173	0.038	0.225	0.229	0.210	0.046	0.139
	SD	0.420	0.725	0.453	0.538	0.167	0.156	0.455	0.584