If you're someone who lifts weights and trains your calves twice a week, doing partial reps starting from your toes pulled all the way up to neutral might grow your calf muscles a tiny bit more than doing full reps plus extra partials at the top — but the difference is super small and not very certain.

What we've found so far suggests that partial calf reps from a fully stretched position might lead to slightly more muscle growth than full reps combined with top partials in trained individuals who train their calves twice a week [1]. However, the difference appears to be very small, and our confidence in this finding is low. Our analysis of the available research shows that all the evidence we’ve reviewed so far supports this idea — 51.0 assertions back it, and none contradict it [1]. Still, we want to be clear: this doesn’t mean the effect is strong or guaranteed. The evidence points to a minor advantage, if any, and it’s not certain whether most people would notice a real-world difference in muscle growth. We’re analyzing how different rep ranges and stretch positions affect calf development, and right now, the data leans toward starting partials from a fully stretched position — that is, with the toes pulled up and the calf lengthened — being slightly more effective [1]. This could be because the muscle is under tension at a longer length, which some research suggests may support growth. But since no studies refute this and only one assertion forms the basis of our current view, we’re cautious about drawing strong conclusions. Our current analysis shows a pattern, but it’s based on limited evidence. We don’t know if this applies to everyone, or if factors like training experience, volume, or frequency change the outcome. Practical takeaway: If you're doing calf exercises twice a week, trying partial reps from the bottom stretched position might offer a slight edge — but don’t expect a big difference. It’s probably more important to stay consistent and challenge your muscles over time.