Main Takeaways:
- The physical maturation among the 13–15 age range is something coaches need to consider when working with this group of pitchers.
- Sometimes the force generated during the leg lift will cause the back foot (on rubber) to move, forcing the heel off the rubber.
- Stay under control: The back foot must stay up against rubber in order to maintain proper direction—while getting out in front—toward the plate.
- Control the aggression: Coaches should focus on making sure the heel stays up against the rubber by working to eliminate an aggressive leg lift/back hip load.