1
Sit upright on the bench with back firmly against the backrest, feet flat on the floor platform, shoulders relaxed and retracted slightly back
2
Grip each dumbbell with palms facing forward (supinated grip), arms extended down at sides with slight elbow bend, shoulders positioned directly above hips
3
Lower the dumbbells in a controlled manner by extending the elbows, keeping upper arms stationary and close to torso, inhaling throughout the lowering phase until arms are nearly fully extended
4
Flex the elbows and curl the dumbbells upward in an arc, keeping upper arms fixed in place, squeeze biceps at the top of the movement, then exhale and reverse the motion