Consistent, reliable ground contact results from quality movement, involving effective loading mechanics, proper foot strike, and force absorption. This supports the trunk and upper body in stroke production, making tennis movement unique. Effective ground contact, while rotating the hips and upper body to hit the ball, requires coordination, balance, and stability with high power output. As players age and grow, the need to absorb greater forces becomes crucial. During major growth periods, maintaining stability and effective ground contact is challenging, necessitating increased stability training.