The single leg calf raise off a step trains one calf at a time through a full stretch, with the heel dropping below the toes at the bottom of every rep. That extra range plus the doubled load per leg makes it far more productive than flat-floor raises, and it needs nothing but a step and something to balance against. It suits everyone from beginners to runners chasing ankle strength and resilient calves.
Log your single leg calf raise off step sets in 1RM.fit and watch your estimated 1RM update automatically as you get stronger.