Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Stand with feet shoulder-width apart, holding a dumbbell in each hand. Arms straight, dumbbells in front of thighs. Engage core, slight knee bend. Raise one dumbbell to shoulder height, palm down. Lower with control. Alternate arms.
Control the motion; avoid momentum. Maintain a straight back. Lift with your shoulders, exhale on lift, inhale on lower. Start with lighter weights.
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