Table 3.

Spearman correlation coefficients between the gain $\text{K}$ and the decay time $\mathrm{\tau }$ of HR and VO₂ for both populations, physiological characteristics and standard analysis indices.

	${\tau }_{\mathit{HR}}$	$K_{\mathit{HR}}$	${\tau }_{V{O}_2}$	$K_{V{O}_2}$
Group 1: training
Age	0.11	− 0.43**	− 0.01	0.06
Weight	0.07	− 0.73***	− 0.06	0.13
Height	− 0.06	− 0.55***	− 0.09	0.05
MAP	0.09	− 0.79***	0.12	0.01
VO2 max	0.07	− 0.65***	− 0.10	0.57***
Power VT1	0.13	− 0.44***	0.03	0.09
Power VT2	0.10	− 0.63***	− 0.03	0.12
HR max	0.32*	0.16	0.02	0.18
HRR	− 0.52***	− 0.14	0.06	0.06
rHRI	− 0.01	0.37**	0.19	− 0.24
Group 2: deconditioning
Age	0.07	− 0.08	0.10	0.20
Weight	− 0.11	− 0.63***	− 0.34	0.08
Height	0.16	0.05	− 0.16	− 0.13
MAP	0.28	− 0.73***	− 0.25	− 0.04
VO2 max	− 0.05	− 0.49**	− 0.25	0.67***
Power VT1	− 0.05	− 0.54**	− 0.15	0.19
Power VT2	0.01	− 0.49*	0.10	0.33
HR max	0.38*	0.49**	0.40*	− 0.10
HRR	− 0.72***	0.16	− 0.32	− 0.08

MAP Maximal Aerobic Power, HR Heart Rate, HRR Heart Resting Rate, VT Ventilatory Threshold, rHRI rate of Heart Rate Increase. Significance is indicated as follows: *p < 0.05; **p < 0.01, ***p < 0.001.