Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Stand under pull-up bar, grip close (shoulder-width, palms away). Hang arms extended, feet off ground, core engaged, body straight. Squeeze shoulder blades, pull elbows to sides until chin over bar (elbows close). Pause at top, lower slowly controlled. Repeat.
Full range: Extend arms fully at bottom. Engage lats/biceps; no swinging/momentum. Too hard? Use bands/assisted machine. Tight core, no back arch. Avoid: Too-narrow grip, no scap retraction, arm-only pull, elbow flare, incomplete reps, rushing, poor alignment.
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