For women who work out regularly, doing preacher curls or incline bicep curls doesn't seem to change where their biceps grow — both exercises lead to similar growth patterns after 9 weeks.

If young women do bicep curls on an incline bench, they’ll likely grow the upper part of their biceps more, but if they use a preacher curl bench, they’ll grow the lower part more — the way you curl matters for where your muscle grows.

Doing inclined bicep curls 3 times a week for 9 weeks doesn’t seem to make women’s biceps grow more in specific areas, even when they push themselves to the max each time.

Doing a specific type of bicep curl on an incline with changing resistance doesn't seem to make certain parts of the upper arm muscles grow more in women who work out regularly — even after doing it consistently for 9 weeks.

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.

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.