The kick serve also gives you time to recover. Practice it on one knee, then move on to the 5-ball drill to develop racquet-head speed: Start 15 feet behind the baseline and move closer with each ...

Hinge joints allow flexion and extension only ... This occurs at the shoulder joint during an overarm tennis serve or cricket bowl. Rotation – this is where the limb turns round its long ...

Flexion – bending a joint ... This occurs at the shoulder joint during an overarm tennis serve. Rotation – this is where the limb moves in a circular movement around a fixed joint towards ...