Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Stand with feet shoulder-width apart, holding dumbbells at your sides. Maintain a slight bend in elbows and neutral spine. Raise dumbbells laterally to shoulder height, palms down. Bring them forward, controlled, to shoulder height. Slowly lower back to start. Repeat.
Control movements to maximize muscle engagement and minimize injury. Avoid momentum; use shoulder muscles. Engage your core for stability. Start with lighter weights to refine form. Exhale on the lift, inhale on the lower.
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