Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Stand with feet shoulder-width apart, toes slightly out. Engage core, chest up. Hinge at hips, lowering until thighs are parallel to the floor. Keep knees tracking over toes. Pause, then push through heels to return to start.
Maintain a neutral spine. Distribute weight evenly across feet. Avoid knee collapse; align with toes. Control movement for maximum muscle engagement. Check form with a mirror or partner. Start with bodyweight.
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