Performing the: A Step-by-Step Tutorial Standing One Arm Extension
Extend the arm holding the dumbbell straight above your head, keeping your elbow close to your ear.
Slowly bend your elbow, lowering the dumbbell behind your head until your arm forms a 90-degree angle.
Pause for a moment, then extend your arm back to the starting position, ensuring to keep your elbow stationary and close to your ear throughout the movement.
Repeat this exercise for the desired number of repetitions, then switch to the other arm.