Another key muscle, the serratus anterior, sits beneath the armpit and drives scapula protraction-think punching or reaching overhead. It’s hard to isolate because larger chest and back muscles take over, and a weak mind–muscle connection often leaves it underdeveloped, creating the look of “wingless” lats. Schoeff emphasizes focused exercises like protraction pushups and cable pulldowns, which research shows produce higher electromyography activation than standard pressing movements. Neglecting the serratus anterior can lead to shoulder instability and poor mechanics over time. Viewers appreciate this callout, noting how serratus training improves posture, enhances arm definition, and supports stronger, more stable movement.
