Set-up: Stand tall with a tight core, a slight bend in the knees and a neutral back. Bend your elbows, raise and close your hands so the palms face away from your body.
Movement: Rotate your forearms inward while raising them upwards so that your palms face behind you as your arms straighten out overhead. Return to the start position along the same path.
Emphasis: Keep your core and back strong while maintaining natural spine position. Focus on contracting the working muscles.