Sit on a bench with your back straight and feet flat on the ground. Hold a dumbbell with both hands and extend your arms straight up above your head. Slowly lower the dumbbell behind your head, keeping your elbows close to your ears. Pause for a moment, then raise the dumbbell back up to the starting position. Repeat for the desired number of repetitions.
1. Sit on a bench with your back straight and feet flat on the ground.
2. Hold a dumbbell with both hands and extend your arms straight up above your head.
3. Slowly lower the dumbbell behind your head, keeping your elbows close to your ears.
4. Pause for a moment, then raise the dumbbell back up to the starting position.
5. Repeat for the desired number of repetitions.