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Physical characteristics and ball velocity difference between adolescent and collegiate pitchers. Values are expressed as mean (±SD).
| Adolescent pitcher (n = 32) |
Collegiate pitcher (n = 30) |
ES | |
|---|---|---|---|
| Age (yr) | 13.9 (.6) | 19.6 (.9)* | 7.44 |
| Height (m) | 1.64 (.08) | 1.77 (.05)* | 2.02 |
| Weight (kg) | 54.1 (10.5) | 72.7 (.9)* | 1.85 |
| Ball velocity (m·s-1) | 30.7 (2.7) | 35.2 (1.9)* | 1.96 |
ES; effect size value.
* p < 0.01, Significant difference between adolescent and collegiate pitchers
