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.

49

Pro

0

Against

Evidence from Studies

Supporting (1)

49

Community contributions welcome

49

Distinct muscle growth and strength adaptations after preacher and incline biceps curls

Randomized Controlled Trial

Human

2025 May

The study found exactly what the claim says: doing incline bicep curls led to more growth near the top of the biceps compared to preacher curls, and the numbers match.

Contradicting (0)

0

Community contributions welcome

No contradicting evidence found

Gold Standard Evidence Needed

According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.

Source Study

Distinct muscle growth and strength adaptations after preacher and incline biceps curls

Score: 49

DOI: 10.1055/a-2517-0509

Similar Assertions

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.

49

0

99%

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.

49

0

96%

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.

49

0

94%

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.

49

0

90%

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.

49

0

87%