Performing the: A Step-by-Step Tutorial Dumbbell Lying Extension
Slowly bend your elbows, lowering the dumbbells in a smooth arc towards your ears, keeping your elbows stationary and your upper arms perpendicular to the floor.
Continue lowering the dumbbells until they are about level with your head or until you feel a stretch in your triceps.
Pause for a moment at the bottom of the movement, then use your triceps to extend your arms back to the starting position, pushing the dumbbells back up in the same smooth arc.
Repeat the exercise for the desired number of reps, ensuring you maintain good form throughout.