Lie on bench with feet flat on floor. Hold one dumbbell with both hands, palms against the underside of the upper set of plates/weight, thumbs and forefingers encircling the handle.
INHALE: Lower the weight behind your head, slightly bending elbows.
EXHALE: Return to starting position, arms extended but not locked to complete one rep.
If your lower back comes up from the bench at all during the movement, then raise your legs (bent) into the air to keep the back flat throughout the entire movement.
Muscles Worked: Chest, Triceps, Lats