Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Face a box, feet hip-width apart. Place right foot firmly on the box, ensuring full contact. Push through your right heel to lift your body onto the box, bringing your left foot up. Stand tall on the box, feet flat, knees slightly bent. Step down with the left foot, then the right, returning to the starting position. Repeat, alternating legs.
Select a box height that allows for proper form. Engage your core for stability. Push through the heel to activate glutes. Maintain an upright chest and controlled descent.
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