This study compared the role of each leg in generating linear and angular impulse during fastball pitches performed by professional pitchers (n=4). Participants were asked to pitch from an instrumented mound and 6-11 successful fastball pitches were used for the analysis. The results indicate that back leg generated forward linear impulse and the front leg generated backward linear impulse for all pitchers. Back leg ground reaction forces generated significantly larger angular impulse about a horizontal axis passing through the body center of mass from the mound to first base than the front leg in three of four pitchers. Additionally, the mechanisms of moment generation about the axis by each leg differed.
New Investigator Award
Liu, Jun M.; Knowlton, Christopher; Gauthier, Matthew; Tropp, Zach; Verma, Nikhil; Nicholson, Gregory; Romeo, Anthony; and Zaferiou, Antonia
"THE ROLES AND MECHANISMS OF LINEAR AND ANGULAR IMPULSE GENERATION FOR BOTH LEGS IN BASEBALL PITCHING: A WHOLE-BODY PERSPECTIVE,"
ISBS Proceedings Archive: Vol. 39:
1, Article 76.
Available at: https://commons.nmu.edu/isbs/vol39/iss1/76