Table 1.
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