Originally Posted by 2019Dad:
Another way of thinking about it is: "research has demonstrated a clear relationship between body mass and pitching velocity" See http://www.gammonsdaily.com/bo...-sabathia-conundrum/ So if that is true, the kid who is likely to gain body mass is more likely to gain velocity. FWIW, the relationship between body weight and velocity was apparently noticed here on HSBBW a number of years ago http://www.community.hsbasebal...peed-and-body-growth (Topic: Interesting Correlation Between Pitching Speed and Body Growth)
That research didn’t say body mass was the most important factor in velocity. It said Body mass and 9 temporal and kinematic parameters related to pitching mechanics combine to account for 68% of the variance in ball velocity for a collegiate population of athletes.