Table III.
Mean values of the hematological parameters and plasma volume changes in elite soccer players at baseline, after 45 and after 90 days of regular soccer training over the competitive half season.
| Parameter | Baseline | After 45 days | After 90 days |
|---|---|---|---|
| Hb (g/L) | 157±3.9 | 151±2.0* | 152±2.1 |
| Hct (L/L) | 0.482±0.010 | 0.457±0.006** | 0.462±0.005 |
| RBC (×1012/L) | 5.4±0.10 | 5.2±0.07 | 5.3±0.05 |
| MCV (fL) | 88.64±0.89 | 87.58±0.40 | 86.81±0.73* |
| MCH (pg) | 28.9±0.31 | 28.9±0.33 | 28.5±0.31 |
| MCHC (g/L) | 326±2.3 | 330±3.0 | 329±2.4 |
| PLT (×109/L) | 253±12.7 | 247±10.6 | 249±9.5 |
| Iron (μmol/L) | 10.8±0.70 | 9.6±0.92 | 10.3±0.84 |
| Ferritin (μg/L) ″ | 49(32.1–77.8) | 63(49.6–80.7) | 69(51.7–91.8)* |
| Transferrin (g/L) | 2.87±0.09 | 2.66±0.08* | 2.72±0.08 |
| Plasma volume changes (%) | +9% | −1.5% |
‘Mean±SEM: ″Geometric mean values (95th confidence interval).
The difference in relation to baseline was significant at p<0.05 (*) and p<0.01(**).