TABLE 3.
Heart rate variability (HRV) | Overall: n = 16 | Time course | Unifactoriell GLM – | Post hoc | ||||||
parameters | (24 h mean) | (time points; 24 h mean) | time effect | test (LSD) | ||||||
Pre- | Peri- | Rehabilitation | Long-term | |||||||
Mean ± SD | Unit | operative (1) | operative (2) | (3) | recovery (4) | F | P | p < 05 | ||
vagal activity (logRSArr) | 0,94 ± 0,17 | log(ms) | 0,98 | 0,88 | 0,93 | 0,97 | 3,24 | 0.046∗ | 0,18 | 1 vs. 2; 2 vs. 4 |
Consecutive inter-beat intervals (RR) | 788,67 ± 75,33 | ms | 790,49 | 760,15 | 794,48 | 809,56 | 4,16 | 0.011∗ | 0,22 | 2 vs. 3, 4 |
Heart rate (HR) | 78,69 ± 7,81 | bpm | 78,91 | 80,60 | 78,34 | 76,90 | 2,49 | 0.072(*) | 0,14 | 2 vs. 4 |
Standard deviation of RR (SDNN) | 45,65 ± 9,37 | ms | 49,49 | 40,22 | 46,26 | 46,61 | 5,00 | 0.016∗ | 0,25 | 1 vs. 2 |
Total variability pow er (InTOTrr) | 7,11 ± 0,45 | ln(ms2) | 7,30 | 6,90 | 7,10 | 7,14 | 3,95 | 0.035∗ | 0,21 | 1 vs. 2, 3 |
Low frequency power (InLFrr) | 5,57 ± 0,51 | ln(ms2) | 5,76 | 5,31 | 5,58 | 5,63 | 4,65 | 0.019∗ | 0,24 | 1 vs. 2; 2 vs. 4 |
High frequency pow er (InHFrr) | 4,37 ± 0,91 | ms2 | 4,53 | 4,12 | 4,37 | 4,47 | 2,70 | 0.077(*) | 0,15 | 1 vs. 2 |
Very low frequency power (InVLFrr) | 6,46 ± 0,40 | ms2 | 6,64 | 6,29 | 6,43 | 6,45 | 3,18 | 0.065(*) | 0,17 | 1 vs. 2, 3 |
Ratio LF/HF | 1,20 ± 0,60 | [ ] | 1,23 | 1,18 | 1,21 | 1,16 | 0,19 | 0.830 | 0,01 | |
Respiratory rate (ATMFrsa) | 17,52 ± 1,29 | fpm | 17,02 | 17,64 | 17,46 | 17,95 | 3,19 | 0.062(*) | 0,18 | 1 vs. 3,4; 3 vs. 4 |
Marked levels of significance: (*)p < 0.1 and ∗p < 0.05.