Tips For Speeding Up Your Fastball
Pitching a baseball requires the player to transfer momentum from the legs to the throwing arm. Maximizing this transfer takes a lot of practice and skill, as illustrated by the results of a study on high school pitchers published in the Journal of Strength and Conditioning Research.
Fifty-two pitchers threw fastballs from an indoor mound fitted with a force plate to measure ground reaction forces. The 3 fastest pitches from each subject were used for analysis. Unlike previous studies on adult pitchers, there was a weak correlation between push-off force and ball speed. This suggests many younger pitchers could benefit from technique training to harness the full potential of body momentum.