For women who are new to weightlifting, doing 9 sets of calf exercises a week doesn't build bigger calves any better than doing 6 or 12 sets. This suggests that when you're just starting out, your calves don't keep growing bigger just because you do more sets.

Doing 12 calf raises a week for six weeks builds more lower leg muscle than doing just 6 a week for women who haven't trained before. This shows that doing more sets directly leads to bigger muscle growth in that area.

Doing more calf raises per week (12 sets instead of 6) over six weeks leads to bigger lower leg muscles in women who don't usually exercise. This suggests that lifting more frequently or with more sets helps build leg muscle faster in the short term.

If you're a young woman who hasn't trained before, doing 9 sets of calf exercises per week builds just as much muscle as doing 6 or 12 sets over six weeks. This means you can save time on your workouts without getting less growth.

Doing more calf exercises per week (going from 6 to 12 sets) doesn't actually make your calf muscles grow bigger. In a short 6-week program, women who did fewer sets saw the same muscle growth as those who did more, meaning calves might not need as much training to grow.

Doing more sets of calf exercises each week generally builds bigger calf muscles, but after a certain point, adding even more sets gives you less and less extra muscle growth.