Table 5: Resting values of heart rate and blood pressure variability parameters; all data are expressed as means ± standard deviations, and values (abbreviations are listed in the “Introduction” Section 1).

Parameterbefore_Safter_SS_ + 3 hS_ + 6 h

Heart rate variabilityLFnu-RRI (%)49.2 ± 20.562.6 ± 15.454.5 ± 21.151.1 ± 210.2406
HFnu-RRI (%)50.8 ± 20.537.4 ± 15.445.5 ± 21.148.9 ± 210.2406
LF-RRI (ms2)1587.9 ± 1221.11007.9 ± 752.8931.6 ± 500.91569.4 ± 1498.40.5221
HF-RRI (ms2)1643.8 ± 971.7493.6 ± 2471068.7 ± 1050.31561.5 ± 1665.6
PSD-RRI (ms2)4058.3 ± 1876.71817.2 ± 10692331.3 ± 1593.23678.9 ± 3266.9
LF/HF-RRI (n/1)1.6 ± 1.92.2 ± 1.12.2 ± 2.21.7 ± 1.70.1543
LF/HF (n/1)1.5 ± 1.52.1 ± 0.71.9 ± 1.61.2 ± 0.8

Diastolic blood pressure variabilityLFnu-dBP (%)49.9 ± 13.265.4 ± 11.957.6 ± 13.144.2 ± 21
HFnu-dBP (%)15.3 ± 10.46.3 ± 3.113.4 ± 1116.8 ± 16.9
LF-dBP (mmHg2)3.4 ± 2.410.8 ± 16.23.3 ± 2.52.9 ± 1.70.6822
HF-dBP (mmHg2)0.8 ± 0.40.7 ± 0.90.5 ± 0.31.1 ± 1.4
PSD-dBP (mmHg2)6.4 ± 3.220.2 ± 35.65.4 ± 3.16.7 ± 2.80.4663
LF/HF-dBP (n/1)6.1 ± 5.613.2 ± 68.5 ± 6.85.6 ± 5.1

Systolic blood pressure variabilityLFnu-sBP (%)43.8 ± 12.855.5 ± 10.347.2 ± 17.137.1 ± 15.3
HFnu-sBP (%)13.9 ± 9.210.6 ± 6.89.9 ± 5.315.4 ± 12.60.1993
LF-sBP (mmHg2)7.6 ± 8.213 ± 16.18.7 ± 6.95.9 ± 6.50.7173
HF-sBP (mmHg2)2 ± 2.51.5 ± 11.9 ± 1.81.6 ± 1.10.6822
PSD-sBP (mmHg2)15.9 ± 1526.5 ± 37.618 ± 10.816.1 ± 140.8964
LF/HF-sBP (n/1)4.5 ± 2.98.3 ± 5.46.0 ± 3.54.3 ± 4.5

Indicates significantly different results; all spectral parameters are expressed as mean ± standard deviation.