If young women do incline bicep curls twice a week for 8 weeks, their upper arm muscles grow more than if they did preacher curls — showing that the type of curl might change where the muscle grows most.

If young women do incline bicep curls twice a week for 8 weeks, their upper arm muscles grow more than if they did preacher curls — the type of curl really affects where the muscle grows.

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.

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

For young women doing strength training twice a week, preacher curls might build more muscle in the lower part of the biceps than incline curls.

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.