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. Raise the dumbbell to shoulder height, palm up, elbow bent. Rotate your torso to the opposite side, keeping hips stable. Slowly return to start, controlling the movement. Switch sides.
Engage your core for stability. Control movements, avoid rushing. Keep hips stable. Start with a lighter weight. Maintain a neutral spine.
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