The Fast Arm uses the Principal of the Lever creating a long lever armfrom the wrist to the hand. Making the 3 link arms in throwing equal.Shoulder to elbow, elbow to wrist, and the wrist to ball. With the 3 linksbalanced all three will have to be coordinated in order to move the FastArm through the most efficient throwing motion. The magnification ofthe wrist/ hand link forces the other 2 links to be moved in a patternthat effectively reduces the amount of force required to move thewrist/hand link. The Fast Arm thereby programs the player’s mechanicsand prepares the joints for higher speeds and greater loading. Whenyou move the Fast Arm properly rom the cocking position to the followthrough it will move freely and develop momentum. The properpositioning of the bend (using the grips and bend orientations shown inthe booklet) the Fast Arm will naturally guide your arm to rotate(pronation, supination) at key positions during the throwing motion.When your arm is at the ball release point, the Fast Arm willautomatically position your arm according to the grips used and theninternally rotate and diagonally adduct your arm. With proactive you program your arm to make these motion transitionswith less effort and greater consistency. The result is less stress andstrain to your arm and a more efficient powerful throw. The LeveragePrinciple also helps the player develop greater shoulder external rangeof motion. This process takes place as the Fast Arm with each throwcreates a progressive stretch. Progressive stretching is an effectivetechnique used by Physical therapists in improving a person’s range ofmotion. Velocity is generated from one body segment to the other in achain like effect. In order to achieve maximum velocity the ball has tobe propelled out of the hand without any last second arm and handalignments. Any last minute changes results in slower arm speed.