Lie on a bench with your feet planted and grip a barbell above your chest with arms extended. Slowly lower the barbell in an arc behind your head by hinging at the shoulders while keeping a slight bend in the elbows. Feel a stretch through the chest and lats, then pull the barbell back over your chest by engaging your upper body muscles. Keep the motion controlled and your core braced throughout.
Log your barbell pullover sets in 1RM.fit and watch your estimated 1RM update automatically as you get stronger.