Doing calf exercises with a deeper stretch at the start might help your calf muscles grow bigger than doing them with a shorter stretch, because the stretched position could put more tension on the muscle.

We analyzed the available evidence on whether training calves at longer muscle lengths builds more muscle than training at shorter lengths, and what we’ve found so far leans toward the idea that a deeper stretch at the start of calf exercises may contribute to greater muscle growth. The evidence we’ve reviewed includes 60 assertions that support this idea, with none that contradict it. These assertions suggest that when the calf muscle is stretched further at the beginning of a movement—like lowering the heel well below the step during a calf raise—it may create more tension across the muscle fibers, which could encourage more adaptation over time. This doesn’t mean the muscle is being “worked harder” in the traditional sense, but rather that the stretch under load might stimulate growth differently than working the muscle in a more shortened position. We don’t yet know how much of a difference this makes in real-world results, or whether it matters more for some people than others. The evidence doesn’t tell us if this approach is necessary, or if it’s just one of several ways to train calves effectively. What we’ve found so far is consistent with the idea that muscle length during exercise might play a role in how the muscle responds—but we’re still learning how to apply this in practice. If you’re looking to vary your calf training, trying exercises that let your heels drop lower—like standing calf raises on a step—could be worth exploring, but it’s not the only path to stronger, bigger calves.