Doing preacher curls might help women who work out regularly build more arm muscle, especially toward the lower part of the upper arm, and after about 9 weeks they could see around a 9% increase.

47

Pro

0

Against

Evidence from Studies

Supporting (1)

47

Community contributions welcome

47

Regional Hypertrophy: The Effect of Exercises at Long and Short Muscle Lengths in Recreationally Trained Women

Randomized Controlled Trial

Human

2023 Jul

The study tested preacher curls in women and found they made the lower part of the bicep thicker after 9 weeks, just like the claim says.

Contradicting (0)

0

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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

Regional Hypertrophy: The Effect of Exercises at Long and Short Muscle Lengths in Recreationally Trained Women

Score: 47

DOI: 10.5114/jhk/163561

Similar Assertions

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.

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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.

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For women who work out regularly, doing preacher curls that stretch the biceps a lot might help build more muscle in the lower part of the upper arm—about an 8.8% increase—compared to other curl types.

40

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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.

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Whether you use a cable machine or a barbell to do preacher curls for 10 weeks, your biceps will grow about the same amount — the exact way you apply resistance doesn’t matter much for muscle size.

47

0

84%