Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Place foot center on box. Drive through heel to lift body, maintaining an upright torso. Stand tall on box. Step down with control, then return to start. Alternate legs or repeat on one side.
Focus on driving through your heel to powerfully engage your glutes and propel your body upward onto the box, ensuring a strong push-off. Maintain an upright torso throughout the movement to prevent leaning forward and protect your lower back, engaging your core to stabilize your spine. Ensure your knee tracks directly over your toes during the step-up to promote proper alignment and reduce stress on your joints. Actively brace your core muscles as if preparing for a light punch to maintain stability and support your lower back. Squeeze your glutes at the top of the movement to maximize glute activation and ensure full hip extension.
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