Table 2.
Between-group difference in cardiorespiratory responses to maximal exercise at baseline and post-program
| Intervention group | Comparison group | |||||||
|---|---|---|---|---|---|---|---|---|
| N | Mean (SD) | N | Mean (SD) | Mean diff | 95% CI | P | ||
| VO2max (L·min− 1) | Baseline | 34 | 2.7 (0.7) | 27 | 2.5 (0.9) | 0.05 | 0.2, −0.3 | 0.7 |
| Post-program | 20 | 2.7 (0.9) | 26 | 2.6 (0.9) | 0.1 | 0.3, − 0.1 | 0.3 | |
| VO2max (mL∙kg−1∙min−1) | Baseline | 34 | 32.1 (11) | 27 | 31.1 (11) | 0.9 | 3.6, −5.5 | 0.7 |
| Post-program | 21 | 30.8 (11) | 26 | 31.1 (11) | −1.8 | −4.4, 0.8 | 0.17 | |
| VO2max (mL∙kgFFM−1∙min− 1) | Baseline | 34 | 44.8 (12) | 27 | 42.6 (12) | 0.2 | 5.5, −4.9 | 0.9 |
| Post-program | 20 | 43.4 (12) | 26 | 43.2 (12) | 1.7 | 5.6, −2.1 | 0.3 | |
| RER (VCO2/VO2) | Baseline | 34 | 1.09 (0.05) | 27 | 1.09 (0.06) | 0.00 | 0.02, −0.04 | 0.5 |
| Post-program | 21 | 1.10 (0.07) | 26 | 1.08 (0.06) | 0.01 | 0.05, −0.02 | 0.3 | |
| Maximal heart rate (beats·min− 1) | Baseline | 34 | 174 (22) | 27 | 170 (17) | 0.4 | 8, −7 | 0.9 |
| Post-program | 20 | 173 (20) | 26 | 169 (13) | 1.8 | 5.4, −1.7 | 0.3 | |
| Ventilation (L∙min− 1) | Baseline | 29 | 94 (29) | 22 | 84 (30) | 2.0 | −16, 12 | 0.7 |
| Post-program | 21 | 88 (27) | 24 | 85 (25) | 3.8 | −13, 5 | 0.4 | |
| Oxygen pulse (mL∙beats− 1) | Baseline | 34 | 15.5 (3.9) | 27 | 14.5 (4.7) | 0.4 | 2.3, −1.3 | 0.5 |
| Post-program | 19 | 16.0 (4.3) | 25 | 15.2 (5.1) | 0.6 | 2.0, −0.7 | 0.3 | |
| Resting heart rate (beats∙min− 1) | Baseline | 34 | 75 (12) | 27 | 75 (16) | 0.9 | 8, −6 | 0.7 |
| Post-program | 21 | 75 (13) | 24 | 72 (14) | 0.4 | 7, −6 | 0.8 | |
| Heart rate reserve (beats∙min−1) | Baseline | 34 | 98 (25) | 27 | 94 (26) | 0.5 | 10, −11 | 0.9 |
| Post-program | 19 | 97 (21) | 23 | 97 (23) | 1.2 | 8.8, −6.4 | 0.7 | |
Presented values are the mean ± SD. VO2max, peak oxygen uptake. FFM, fat-free mass. RER, respiratory exchange ratio. CI, confidence interval