Table 1.
Breath rate and HRV measures in HFYB sessions.
| Variables | Pre | During 1 | During 2 | During 3 | Post 1 | Post 2 | Post 3 |
|---|---|---|---|---|---|---|---|
| Breath rate (breaths/min) | 16.45 ± 2.61 | 60.64 ± 7.39*** | 61.13 ± 7.24*** | 62.54 ± 7.58*** | 16.02 ± 2.87 | 16.66 ± 3.09 | 16.55 ± 3.30 |
| LF (nu) | 72.37 ± 2.86 | 71.80 ± 6.68 | 71.85 ± 6.57 | 72.52 ± 6.00 | 71.72 ± 2.67 | 72.36 ± 2.43 | 73.05 ± 2.74 |
| HF (nu) | 27.63 ± 2.86 | 28.20 ± 6.68 | 28.15 ± 6.57 | 27.48 ± 6.00 | 28.28 ± 2.67 | 27.64 ± 2.43 | 26.95 ± 2.74 |
| LF/HF (nu) | 2.67 ± 0.53 | 2.67 ± 0.57 | 2.68 ± 0.59 | 2.75 ± 0.54 | 2.57 ± 0.32 | 2.64 ± 0.31 | 2.75 ± 0.40 |
| Mean RR (sec) | 0.98 ± 0.17 | 0.84 ± 0.14*** | 0.84 ± 0.14*** | 0.84 ± 0.12*** | 0.96 ± 0.15 | 0.96 ± 0.15 | 0.93 ± 0.14** |
| NN50 (count) | 132.03 ± 55.02 | 40.76 ± 60.03*** | 38.16 ± 65.65*** | 40.00 ± 60.14*** | 129.03 ± 56.43 | 126.58 ± 56.29 | 115.63 ± 56.24 |
| pNN50 (%) | 44.76 ± 21.51 | 11.39 ± 15.31*** | 10.55 ± 16.79*** | 11.53 ± 16.92*** | 42.77 ± 21.49 | 41.79 ± 21.50 | 37.40 ± 21.15* |
*p < 0.05, **p < 0.01 and ***p < 0.001, Repeated measures analyses of Variance (RMANOVA), with post-hoc analyses comparing During and Post