Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Stand facing a bench. Place one foot on the bench, extend your leg. Lower into a squat, bending your front knee over your ankle. Explosively jump upwards, pushing through your front heel, keeping your back foot on the bench. Land softly, immediately returning to the squat for the next rep. Alternate legs.
Maintain a straight torso. Drive through your front heel for power. Engage your core for stability. Start with a lower bench if needed. Prioritize controlled movement.
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