Young women who train biceps twice a week for 8 weeks get stronger in the exact curl they practice—like getting better at preacher curls if they do preacher curls. It shows your muscles get best at what you actually train.

If young women do incline bicep curls twice a week for 8 weeks, they’ll get stronger at that exact move compared to doing preacher curls — it’s like getting better at one exercise by practicing that one specifically.

If young women do preacher curls twice a week for 8 weeks, they’ll get stronger at preacher curls than if they did incline curls instead — and that makes sense because your body gets best at the moves you actually practice.

Young women who do incline bicep curls twice a week for 8 weeks get stronger at that exact move compared to doing preacher curls — it looks like getting stronger depends on the specific exercise you do.

If young women do preacher curls twice a week for 8 weeks, they get stronger at that specific move compared to doing incline curls — it really helps to train the way you want to get strong.

If young women do preacher curls instead of incline curls during their workouts for 8 weeks, they’ll likely build more muscle in the lower part of their biceps.