Table 2.
HRV at rest and hours of exercise practice of the 33 participants included in this study by groups (mean ± SD).
| HRV parameters at rest | Basketball players (n = 18) |
Sedentary subjects (n = 15) |
p |
|---|---|---|---|
| HR (beats/min) | 62.26 ± 7.32 | 82.86 ± 9.39 | < 0.001 |
| RRi (ms) | 992.06 ± 116.73 | 739.92 ± 84.31 | < 0.001 |
| rMSSD (ms) | 694.06 ± 238.28 | 354.97 ± 149.2 | < 0.001 |
| LF (nu) | 53.27 ± 14.67 | 78.09 ± 11.81 | < 0.001 |
| HF (nu) | 46.65 ± 14.65 | 21.90 ± 11.82 | < 0.001 |
| Exercise practice involvement (h) | |||
| Exercise per week | 10.22 ± 1.73 | 0.27 ± 0.59 | < 0.001 |
| Basketball practice per week | 9.39 ± 0.92 | 0 | < 0.001 |
Abbreviations: HF = high frequency; HR = heart rate; HRV = heart-rate variability; LF = low frequency; nu = normalized units; rMSSD = root-mean-square difference of successive normal R-R intervals; RRi = R-R interval.