Stand tall with a neutral spine and your feet hip width apart. Hold a dumbbell in each hand with an overhand grip. Your arms should be by your sides with your palms facing in. This is your start position. Brace your core, keep a neutral spine and look straight ahead as you extend one arm out to your side and the other directly in front of you. Be sure to maintain a slight bend in your elbows at all times. Exhale as you do so. Both arms should come to parallel with the floor. Pause, then slowly lower the weight back to the start position, inhaling as you do so. Repeat the movement, this time moving each arm the opposite way. Repeat the movement for the required reps (or time).