Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
One-arm kettlebell swing, feet shoulder-width, neutral spine. At chest height, bend elbow, high-pull bell to shoulder (straight wrist, close to body). Punch back out same path to next swing. Shoulders packed, core braced, tall posture.
Master one-arm swing first. Elbow above wrist (upper back activation). Control bell descent—no dropping. No shrug/flare; scapulae back/down. Smooth push-pull timing, no jerking.
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