The superman W is a prone bodyweight exercise where you lift your chest off the floor while pulling your bent arms into a W shape. It trains the spinal erectors alongside the lower traps, rhomboids, and rear delts, making it both a back extension and a scapular retraction drill. Desk bound lifters use it to counter rounded shoulder posture and to warm up the upper back before pulling sessions.
Log your superman w sets in 1RM.fit and watch your estimated 1RM update automatically as you get stronger.