From: Heart rate variability in chronic low back pain patients randomized to yoga or standard care
Variables | Yoga (n = 21) | Standard care (n = 21) | ||||
---|---|---|---|---|---|---|
Pre | Post | Cohen’s d | Pre | Post | Cohen’s d | |
LF (n.u) | 57.8 ± 14.2 | 50.8 ± 12.0* | 0.53 | 56.7 ± 15.5 | 58.7 ± 16.9 | 0.12 |
HF (n.u) | 42.2 ± 14.2 | 49.2 ± 12.0* | 0.53 | 43.3 ± 15.5 | 41.3 ± 16.9 | 0.12 |
LF/HF | 1.71 ± 1.24 | 1.15 ± .53 | 0.63 | 1.68 ± 1.15 | 1.94 ± 1.53 | 0.65 |
Mean RR | 0.76 ± 0.09 | 0.79 ± 0.10 | 0.32 | 0.76 ± 0.08 | 0.75 ± 0.08 | 0.13 |
RMSSD | 56.47 ± 49.44 | 79.14 ± 50.68 | 0.45 | 62.54 ± 55.52 | 32.37 ± 20.06 | 0.80 |
NN50 | 28.14 ± 39.13 | 43.88 ± 38.41 | 0.41 | 29.05 ± 37.02 | 21.14 ± 33.36 | 0.22 |
pNN50 | 7.75 ± 11.64 | 13.40 ± 13.27* | 0.45 | 7.65 ± 10.22 | 5.77 ± 9.06 | 0.20 |
Respiration rate (CPM) | 13.01 ± 2.60† | 11.42 ± .98** | 0.89 | 11.29 ± 1.12 | 10.88 ± .97 | 0.39 |