Lie flat on a bench with a dumbbell in each hand, palms facing each other. Extend your arms straight up over your chest, keeping a slight bend in your elbows. Lower one dumbbell down towards your head, bending at the elbow, while keeping the other arm extended. Pause for a moment at the bottom, then raise the dumbbell back up to the starting position. Repeat with the other arm, alternating sides for the desired number of repetitions.
1. Lie flat on a bench with a dumbbell in each hand, palms facing each other.
2. Extend your arms straight up over your chest, keeping a slight bend in your elbows.
3. Lower one dumbbell down towards your head, bending at the elbow, while keeping the other arm extended.
4. Pause for a moment at the bottom, then raise the dumbbell back up to the starting position.
5. Repeat with the other arm, alternating sides for the desired number of repetitions.