Table 2.

P-values obtained from the repeated-measures ANOVA and its post-hoc analyses, when applied to time-domain and Poincaré plot-derived indices of PRV and HRV.

Index	Source	ANOVA	post-hoc comparisons
			BM vs. CE	CE vs. CR	BM vs. CR
SDNN (s)	HRV	<0.001	0.005	0.086	0.025
	Finger PRV	0.007	0.039	1.000	0.024
	Toe PRV	<0.001	<0.001	0.295	0.003
	Ear canal PRV	0.118	–	–	–
	Earlobe PRV	0.006	0.021	0.199	0.310
RMSSD (s)	HRV	0.001	0.004	0.174	0.004
	Finger PRV	0.015	0.066	1.000	0.053
	Toe PRV	<0.001	<0.001	0.208	0.007
	Ear canal PRV	0.250	–	–	–
	Earlobe PRV	0.009	0.022	0.331	0.265
pNN50	HRV	<0.001	<0.001	0.068	0.062
	Finger PRV	0.006	0.123	0.633	0.018
	Toe PRV	<0.001	0.002	0.639	0.011
	Ear canal PRV	0.168	–	–	–
	Earlobe PRV	<0.001	<0.001	0.002	0.774
SD1 (s)	HRV	0.001	0.004	0.170	0.005
	Finger PRV	0.015	0.067	1.000	0.053
	Toe PRV	<0.001	<0.001	0.206	0.007
	Ear canal PRV	0.250	–	–	–
	Earlobe PRV	0.009	0.023	0.330	0.266
SD2 (s)	HRV	0.001	0.017	1.000	0.003
	Finger PRV	0.004	0.029	1.000	0.012
	Toe PRV	0.002	0.003	1.000	0.013
	Ear canal PRV	0.076	–	–	–
	Earlobe PRV	0.001	0.036	1.000	<0.001
SD1/SD2	HRV	0.001	0.005	0.131	0.015
	Finger PRV	0.025	0.097	1.000	0.083
	Toe PRV	0.002	0.004	0.261	0.046
	Ear canal PRV	0.044	0.178	0.060	1.000
	Earlobe PRV	0.021	0.047	0.192	0.724

Values in red indicate statistical significance (p-value < 0.05). Sphericity corrections using Greenhouse-Geisser correction were applied when Mauchly's test showed statistically significant results, and p-values shown are after these corrections. BM, baseline measurement; CE, cold exposure; CR, cold recovery.