Posterior Deltoids
Punch Retraction
The rear deltoids pull the arm back after a punch. Rapid retraction prevents being countered. Weak rear delts lead to lazy jabs.
Techniques Using The Posterior Deltoids
Lead Hook
A devastating short-range punch thrown in a lateral arc, powered by violent core rotation. Often considered the ultimate knockout punch.
Rear Hook
A powerful hook thrown with the rear hand. Less common than the lead hook but devastating when landed, especially to the body. Requires full hip rotation.
Overhand Right
A looping power punch thrown over the opponent's guard in a downward arc. High risk, high reward â the signature knockout punch in many styles.
Philly Shell (Shoulder Roll)
An advanced defensive stance where the lead shoulder is raised to deflect punches while the rear hand stays high. Popularized by Floyd Mayweather Jr.
Shoulder Roll
The act of rotating the lead shoulder upward to deflect incoming punches, letting them slide off the shoulder rather than blocking them with the gloves. The core defensive mechanic of the Philly Shell stance.