(Posterior View)

(Anterior View)

Phase 3

• As a Free body Diagram, when hitting the tennis ball in a diagonal motion,
• Your on the balls of your feet
• Your left knee twisting in a lateral rotation
• Your right knee twisting in a medial rotation
• Keep your arms locked in a bent position (L position)
•  While twisting your back in transverse plane
• Your arm (the one holding the racket) with stay bent in the L position, but your arm will be tight in that position and will also stay in the same motion which will consist of your shoulder in a horizontal adduction when your back is twisting in the transverse plane. (it's all one motion)
• While twisting, is the same time you will hit the tennis ball with force.