Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Place foot fully on the box center. Brace core, push through heel and mid-foot to stand. Bring trailing foot up to meet, then lower with control. Step working foot down. Repeat reps before switching sides.
Actively drive through your elevated heel to maximize power and stability during the box step-up. Maintain an upright torso throughout the movement, resisting the urge to lean forward or backward to engage your core and protect your lower back. Ensure your knee tracks directly over your toes as you step up, preventing your knee from collapsing inward or bowing outward. Minimize the push-off from your grounded foot to focus on the power generated from the working leg and box. Keep your core consistently tight to stabilize your body and prevent excessive leaning or swaying during the exercise.
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