Stand with your feet shoulder-width apart and hold a dumbbell in one hand at shoulder level, palm facing forward. Engage your core and press the dumbbell straight up overhead, fully extending your arm. Pause for a moment at the top, then slowly lower the dumbbell back to shoulder level. Repeat for the desired number of repetitions, then switch to the other arm.
1. Stand with your feet shoulder-width apart and hold a dumbbell in one hand at shoulder level, palm facing forward.
2. Engage your core and press the dumbbell straight up overhead, fully extending your arm.
3. Pause for a moment at the top, then slowly lower the dumbbell back to shoulder level.
4. Repeat for the desired number of repetitions, then switch to the other arm.