Lifting weights for three months can make the upper arm muscle about 13% bigger in young college guys.

31

Pro

0

Against

Evidence from Studies

Supporting (1)

31

Community contributions welcome

31

Muscle fiber hypertrophy, hyperplasia, and capillary density in college men after resistance training.

Cross-Sectional Study

Human

1996 Nov

The study looked at the same type of workout and measured the same muscle growth in the same kind of people, and found exactly what the claim says: biceps got bigger by about 12.7% after 12 weeks of training.

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

Muscle fiber hypertrophy, hyperplasia, and capillary density in college men after resistance training.

Score: 31

DOI: 10.1152/JAPPL.1996.81.5.2004

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