Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Sit on a bench, holding dumbbells at shoulder height, palms facing you. Engage your core, keep your back pressed against the bench, and feet flat. Press dumbbells overhead, rotating palms outward until arms are fully extended. Pause, then slowly lower back to the starting position, rotating palms inward. Repeat.
Maintain control throughout the movement. Keep your core tight and use a weight allowing for proper form. Exhale on the press up, inhale on the lower. Keep elbows slightly bent at the top.
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