Why is Body Rotation important?

The Body Rotation ratio provides an objective swing metric that provides advanced insights into the hitter's rotational movement patterns. An efficient swing has connection between the body and bat rotational movement patterns. The ability to assess disconnection in the swing is very important from a player development and training standpoint. Disconnection occurs when there is either too much Body Rotation or too much bat rotation.

A swing that has the appropriate relative contributions of body and bat rotations is an efficient and Powerful swing that maintains proper sequencing. An efficient baseball swing is one in which the body creates the initial movements, which is then transferred to the arms and out to the bat, thereby maximizing Bat Speed through this proximal-to-distal kinematic sequencing movement pattern.