Stand with your feet about shoulder width apart for balance. Your posture should be maintained throughout the exercise. Holding a dumbbell in each hand, start with your hands both resting in front of your thighs.
Engage your abdominals, exhale, and lift one arm until it is horizontal. Avoid shrugging your shoulders.
Inhale and lower the weight back to the start position with control. Do the same movement on the other arm.
Do 8-12 repetitions on each arm, rest, then repeat the exercise if desired.