Sit on the edge of a bench holding a kettlebell in one hand and carefully lie back while keeping the bell close to your shoulder in a stable rack position. Plant your feet firmly on the floor and brace your core to prevent rotation. Press the kettlebell upward until your arm is fully extended, keeping your wrist neutral and elbow controlled. Slowly lower the kettlebell back to chest level with control, maintaining stability through your torso. Repeat for the desired reps, then switch sides.
Log your kettlebell one arm bench press sets in 1RM.fit and watch your estimated 1RM update automatically as you get stronger.