Table 3.
Work economy, peak oxygen uptake in swimming and maximal heart rate. All data are presented as mean (standard deviation).
| Intervention group | Control group | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| All (n = 11) | Female(n = 5) | All (n = 9) | Female (n = 7) | ||||||
| Cs at 1.1 m·s-1(mL·m-1) | Pre | 43.9 | (6.3) | 39.7 | (4.1) | 38.4 | (8.9) | 35.2 | (7.1) |
| Post | 42.7 | (6.6) | 38.3 | (3.5) | 39.1 | (6.3) | 36.8 | (5.1) | |
| Cs at 1.1 m·s-1(mL· -1·kg-1) | Pre | 0.75 | (.09) | .74 | (0.11) | .66 | (.13) | .63 | (.13) |
| Post | 0.72 | (.06) | .72 | (0.08) | .66 | (.12) | .65 | (.14) | |
| VO2peak(L·min-1) | Pre | 3.26 | (.64) | 2.80 | (0.20) | 3.03 | (.39) | 2.87 | (.15) |
| Post | 3.28 | (.69) | 2.75 | (0.30) | 2.97 | (.46) | 2.77 | (.16) | |
| VO2peak(mL·kg-1·min-1) | Pre | 55.2 | (4.6) | 52.2 | (3.8) | 52.2 | (5.0) | 51.5 | (5.3) |
| Post | 55.0 | (5.8) | 51.5 | (6.6) | 50.0 | (6.2) | 48.7 | (6.4) | |
| VE(L·min-1) | Pre | 97.4 | (18.2) | 86.2 | (5.0) | 94.2 | (11.7) | 90.3 | (6.7) |
| Post | 105.5 | (19.7)** | 92.3 | (10.3) | 91.9 | (16.8) | 85.7 | (10.9) | |
| R | Pre | 1.14 | (.06)†† | 1.14 | (.04)† | 1.07 | (.07)†† | 1.04 | (.03)† |
| Post | 1.13 | (.09)†† | 1.10 | (.08)†† | 1.03 | (.09)*†† | 1.00 | (.02)*†† | |
| vVO2peak(m·s-1) | Pre | 1.31 | (.08) | 1.28 | (.08) | 1.28 | (.11) | 1.27 | (.10) |
| Post | 1.32 | (.07) | 1.28 | (.07) | 1.29 | (.12) | 1.26 | (.11) | |
| HRmax(beats·min-1) | 194 | (7) | 195 | (5) | 186 | (5) | 188 | (5) | |
Cs: Cost of swimming, m·s-1: meters per second, mL·m-1: millilitres per meter, VO2peakS: Peak oxygen uptake in swimming, L·min-1: liters per minute, VE: Pulmonary ventilation, R: Respiratory exchange ratio, vVO2peak: velocity during VO2peak –measurement, HRmax: maximal heart rate during swimming, min: minute. * Significant change in group at p < 0.05. ** Significant change in group at p < 0.01. † Significant difference between intervention group and control group at p < 0.05. †† Significant difference between intervention group and control group at p < 0.01.