top of page



Dr. Philip N. Lombardo, PT

PT, DPT, SCS, CSCS, PES, CES, NFHS, USATF and CUDIT Founder, Coach Lisa, discussing muscle movement phases of the swing through CUDIT Concentric Hitting

C.U.D.I.T.® Concentric Swing Muscle Movements with Dr. Lombardo

C.U.D.I.T.® Concentric Swing Muscle Movements with Dr. Lombardo

Watch Now


In the development stages of The CUDIT® Concentric Hitting Coach Program, Coach Lisa made it her mission to study the science of the swing by connecting with the source. One of the these sources was Dr. Lombardo to discuss the muscle movement phases during the swing.

In her discussions with Dr. Lombardo, it had become clear that eccentric and concentric muscle movement combined with a clean kinetic chain of energy would create the most powerful and efficient swing sequence.

This video was filmed during her mission in developing CUDIT.


"What Is Concentric Muscle Movement?"


The concentric phase of muscle movement is the contraction and shortening of the muscles required to perform a specific movement. After being loaded in the eccentric phase (TBD), the muscles are returning to their normal length through the concentric phase. This adds a massive amount of force behind any movement that had been loaded and released. The eccentric and concentric phases of muscle movement are crucial for explosive power in most sports.


THE VERTICAL JUMP:  The concentric phase would be the upward movement in the jump.

THE HITTER'S BOTTOM HALF: The first concentric phase would be when the hitter enters their body weight shift and internal rotation phase.

THE HITTER'S CORE: The second concentric phase would be the release of the hitter's core on their torso rotation phase.

THE HITTER'S UPPER EXTREMITY: The third concentric phase would be the release of the hitter's upper extremity (scaps, lats, traps, e.g.) releasing on the swing path.


So, what is eccentric movement? 


Eccentric muscle movement occurs when muscles are elongated in response to a greater opposing force; for example, loading the bottom half. The energy that is absorbed by these muscles during the eccentric phase can be converted into elastic spring energy which can be reused by the body. This contributes to creating a Kinetic Chain throughout the body during the swing; swing sequence.


THE VERTICAL JUMP:  The eccentric phase would be the squatting down before jumping upward.


THE HITTER'S BOTTOM HALF: The first eccentric phase would be the loaded backside bottom half and internal rotation.


THE HITTER'S CORE: The second eccentric phase would be the tightening of the core in separation a.k.a. split (Step 2 of CUDIT Concentric Hitting).


THE HITTER'S TOP HALF: The third eccentric phase would be the tightening of the upper extremity (scaps, lats, traps, e.g.) in their launch position.

Circuit Targeting Eccentric and Concentric Explosiveness in The Baseball or Softball Swing


One of the most important aspects of training mechanically sound muscle movements in the swing is to break the body into three parts.


The CUDIT Course teaches three segments of the body to target for an explosive, yet clean, swing.

In this video, you will see Coach Lisa discuss the role of the core and the upper extremity during separation while instilling a clean stride.

bottom of page