RESEARCH AND DEVELOPMENT
Front Leg Extension (FLE) is the straightening of the front leg after front foot strike. It is the opposite reaction to Front Knee Flex (FKF). FLE is the acceleration of mechanical energy within the kinetic chain reaction (KCR) that moves energy into the upper body.
Additionally, it is the last reaction in your kinetic chain reaction (KCR) before energy hits the upper half. Being efficient AND PROPORTIONATE in both FKF and FLE is crucial to energy flow rates that determine power, hand speed, command, and pitch velocity.
When FLE is not proportionate and synced with its counterpart (FKF), hitters will open their hips prematurely in a subconscious effort to slow energy overloads. Pitchers will do the same.
This is PRR initialization that protects your body from harm. If FLE is ascertained properly, support moves underneath the throwing arm and drag arm or dragging bat head usually diminishes.
If FLE is not proportionate (equal and opposite) to FKF, the result is energy dissipation into the ground or premature opening of the hips. Leg strength is highly important in connecting this portion of your KCR.
VeloPRO trains FLE directly by equalizing your support and acceleration to optimize KCR rates.