Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Kettlebell on floor ~2ft ahead, feet shoulder-width toes forward. Flat back/core tight, hip hinge to grab handle. Tilt bell back, hike between legs (hip hinge, soft knees). Explode hips forward (squeeze glutes/straighten legs), swing to eye level (elbows close/soft bend). Guide natural fall back between legs. Smooth repeats, return to floor.
Hip hinge (not squat): Butt back/pelvis tilt, soft knees (RDL style); straighten/squeeze glutes on upswing. Power from hips/glutes/hams—no arm lift. Elbows pinned to sides for hip drive/power.
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