ability to move the body in one intended direction as fast as possible.
agility
ability to accelerate, decelerate, stabilize, and change direction quickly, while maintaining proper posture.
quickness:
ability to react and change body postion with maximum rate of force production, in all planes of motion, from all body postions, during functional activites.
Front side mechanics: triple flexion of the front leg
ankle dorsiflexion
knee flexion
hip flexion
keeping the lumbar spine neutral
backside mechanics: triple extension of the back leg