Three Distinct Phases
The two-handed backhand involves three distinct phases—preparation, acceleration, and impact/follow through. During the acceleration phase, the trunk rotates beyond the hips. The forward, upward and leftward rotation of the trunk generates high energy and force. This movement is vital to get the required power behind the shot. A smoother transition between these movements will ensure a greater accuracy and control. The role of lower extremities is also important in the trunk rotation while playing this stroke.
Development of trunk rotation is vital to execute an explosive two-handed backhand. Optimal trunk rotation is also necessary to generate the maximum force through the shoulder. The rotation of the trunk also allows the stretching of the shoulder muscles. This stretching helps to generate more power in the swing.
The core muscles activate during the preparatory phase of the shot. During the acceleration, concentric and eccentric contractions of oblique’s and back extensors generate power.
The role the trunk has in a two-handed backhand
a more efficient two-handed backhand?