Table 3.

Mean Slopes and Intercepts of the Regressions of HF-HRV, lnHF-HRV, HF-HRV/V_T Pneumo, lnHF-HRV/V_T Pneumo, HF-HRV/V_T Belt, and lnHF-HRV/V_T Belt upon T_TOT

	Mean	SD
HF-HRV
Slope	0.69	0.44
Intercept	−1478	5340
lnHF-HRV
Slope	0.34	0.18
Intercept	5.96	1.39
HF-HRV/VT Pneumo (6 min)
Slope	0.59	0.48
Intercept	−1667	11205
lnHF-HRV/VT Pneumo (6 min)
Slope	−0.76	1.71
Intercept	25.05	10.88
HF-HRV/VT Pneumo (4 min)
Slope	0.61	0.48
Intercept	−1702	10896
lnHF-HRV/VT Pneumo (4 min)
Slope	−0.78	1.57
Intercept	25.31	10.65
HF-HRV/VT Pneumo (2 min)
Slope	0.66	0.48
Intercept	−2955	11922
lnHF-HRV/VT Pneumo (2 min)
Slope	−0.68	1.48
Intercept	25.60	10.38
HF-HRV/VT Belt (6 min)
Slope	0.63	0.42
Intercept	−3354	9704
lnHF-HRV/VT Belt (6 min)
Slope	0.51	2.99
Intercept	13.68	15.42
HF-HRV/VT Belt (4 min)
Slope	0.62	0.44
Intercept	−3406	10344
lnHF-HRV/VT Belt (4 min)
Slope	0.42	2.86
Intercept	14.21	14.42
HF-HRV/VT Belt (2 min)
Slope	0.65	0.45
Intercept	−3372	10373
lnHF-HRV/VT Belt (2 min)
Slope	0.20	2.58
Intercept	15.74	13.27