Average levels of activity as a function of career stage and type of training
| Type of training (hours/week) | |||
|---|---|---|---|
| Career stage | Football specific | Endurance | Power |
| Values are mean (SD). | |||
| Schoolboy | 4.8 (4.9) | 1.6 (3.0) | 0.3 (0.8) |
| Professional | 8.1 (4.0) | 3.3 (2.6) | 1.5 (1.2) |
| Retired | 3.5 (2.1) | 1.1 (1.6) | 0.8 (1.5) |