Why does a diver change his body position before nd after diving in the pool?

A diver changes their body position before and after diving to optimize their entry into the water and to enhance their aerodynamics during the dive. Before diving, they adopt a streamlined posture to reduce air resistance and ensure a clean entry, minimizing splash. After the dive, they adjust their body position to prepare for a smooth transition and to control their orientation as they approach the surface. This strategic positioning helps improve overall performance and reduces the risk of injury.