Table 1.
Characteristics of national (NL) and regional (RL) level soccer players
| Age (y) | Body mass (kg) | Body height (cm) | Soccer-weekly training volume (hours) | |
|---|---|---|---|---|
| NL | 20.7 ± 1.4 | 68.5 ± 7.0 | 177.4 ± 5.2 | 6 - 8 |
| RL | 20.8 ± 1.0 | 68.7 ± 4.0 | 176.6 ± 5.6 | 3 - 5 |
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