Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Stand with feet shoulder-width apart, arms extended to the sides, palms down. Rotate arms forward in small, controlled circles, gradually increasing size. Reverse direction and repeat backward. Breathe steadily.
Engage your core for stability. Control movements to protect shoulder joints. Start with small circles, focus on smooth motion, and keep shoulders relaxed.
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