An example of a movement strategy that athletes will use to take advantage of proper loading and force production is the “Directional Step”.
When a baseball player takes off from his steal stance there are several reactions to another action that occur. The hands set up the initial quick push of the back leg, the quick push of the back leg allows the front foot to unload and reposition in order to drive down and back with the proper acceleration angle. The lead leg now drives down and back to increase the momentum/acceleration initially provided by the quick push off of the back leg. The aggressive and long arm drive increases leg forces due to action reaction law.
To go a bit deeper the external rotation of the front leg during the back legs initial quick push off helps to create a great reaction force back into the push off leg. THIS IS WHY TEACHING ATHLETE TO HAVE A PLANTED FRONT FOOT AND TRYING TO DRIVE THE BACK LEG ACROSS IS SO COUNTERPRODUCTIVE AND RARELY HAPPENS- EVEN THOUGH IT IS BEING TAUGHT. Always remember the intricate workings of the neuromuscular system (and so many other systems) pretty much have it figured out. We just clean up the garbage that needs to be taken out.