Table 2. Physiological and muscle fibre characteristics in cyclists before (PRE) and after (POST) competitive-season.
| analysis | PRE | POST |
|---|---|---|
| Wpeak {W} | 344.5 ± 12.4 | 331.5 ± 11.8 |
| V’O2peak {l•min–1} | 4.55 ± 0.20 | 4.98 ± 0.23 |
| Mass {kg} | 69.6 ± 1.6 | 70.9 ± 1.7 |
| Hematocrit {%] | 41.7 ± 0.7 | 42.0 ± 0.9 |
| Hemoglobin {g•dL–1} | 14.2 ± 0.3 | 14.1 ± 0.5 |
| Free testosterone {pg•ml–1} | 11.0 ± 1.6 | 10.3 ± 1.4 |
| Estradiol {pg•ml–1} | 10.1 ± 2.4 | 12.3 ± 3.0 |
| Fibre type I {%} | 63.5 ± 1.7 | 56.1 ± 4.0 |
| Fibre type II {%} | 36.5 ± 1.6 | 43.9 ± 4.0 |
| Fibre type I {μm} ^ | 67.97 ± 2.80 | 63.65 ± 2.53 |
| Fibre type IIA {μm} ^ | 67.89 ± 3.31 | 62.38 ± 2.21 |
| Fibre type IIx {μm} ^ | 63.58 ± 1.67 | 63.33 ± 2.13 |
| Leg muscle mass {kg} | 21.0 ± 0.34 | 21.1 ± 0.32 |
Data presented as mean ± SEM. All differences between PRE and POST were not significant (P > 0.05). Mean values of Hematocrit and hemoglobin levels were measured using Sysmex system (KX-21N, Sysmex, Kobe, Japan).
^ = in ellipse minor axis.