Why do my armpits feel sore after doing heavy shoulder presses?
1. Introduction Armpit soreness after executing heavy shoulder presses is driven by microscopic muscle tearing and delayed onset muscle soreness in the primary stabilizing muscles that anchor the arm to the torso, specifically the latissimus dorsi, teres major, and the coracobrachialis. While the deltoids on the top of the shoulder perform the visible pushing action, … Read more