Performing the: A Step-by-Step Tutorial Dumbbell Seated One Arm Arnold Press
As you exhale, raise the dumbbell overhead by extending your elbow and rotating your arm outward, until your palm faces away from your body at the top of the movement.
Pause at the top of the movement, where the dumbbell is fully extended overhead.
As you inhale, slowly lower the dumbbell back to the initial position by rotating the arm inward, until the palm faces towards your body again.
Repeat the desired number of repetitions, then switch to the other arm and repeat the same steps.