Punch Mechanics

Power Generation
The rear hand punch can effectively be broken into 3 primary contributors to punching force: (a) the contribution from the arm musculature into the target, (b) the rotation of the trunk, and (c) the drive off the ground by the legs.(1)

-Arm velocity

-Trunk rotation

-Leg driving off the ground

Importance of Leg Drive

There is some conflict in current research as to whether leg drive or preimpact hand velocity is the greater contributor to punching power. Investigating other sports, which follow roughly similar movement patterns, the importance of the contribution of the lower body is seen throughout the literature. These findings indirectly support the conclusions about the importance of leg drive to develop punching forces.



https://www.jkdwednite.com/punching-power.htm


https://www.scribd.com/document/87909728/1919-Boxing-and-Self-Defense-Taught-by-the-Marshall-Stillman-Principle

(1) Strength and Conditioning Journal: Assessment and Contributors of Punching Forces in Combat Sports Athletes: Implications for Strength and Conditioning

CONTRIBUTION OF TRUNK AND PELVIS ROTATION TO PUNCHING IN BOXING 

Kinematics of Straight Right Punch in Boxing