Technique
How to perform it
- Sit on an exercise ball with your feet flat on the ground and your back straight.
- Hold a dumbbell in one hand with your palm facing up and your elbow bent at a 90-degree angle.
- Extend your arm straight up towards the ceiling, keeping your elbow stationary.
- Slowly lower the dumbbell back down to the starting position.
- Repeat for the desired number of repetitions, then switch arms.
