Take hold of two suitable weight plates. Stand with your feet at shoulder-width and your core tight. Your hands are holding the plates pressed together and the plates are touching your chest. The elbows are bent and the fingers are spread wide and pointing forward as they wrap the plates. This is the starting position.
Commence the movement by extending the arms out in front of you in a path parallel to the ground until full arm extension is reached. The plates remain pressed together. Maintain a squeeze in the chest and exhale as you push the plates outward.
Reverse the movement by bending the elbows and brining the plates back toward the chest in the same parallel path. Keep the chest squeezed and inhale through the inward movement.