Lifting heavier weights might make your fast-twitch muscle fibers grow more than lighter weights, but the results aren't totally certain.

39

Pro

0

Against

Evidence from Studies

Supporting (1)

39

Community contributions welcome

39

Heavy or Light

Systematic Review With Meta-Analysis

The study looked at the same type of heavy weight training and found it does help type II muscle fibers grow more than lighter weights, just like the claim says, but it also says the results aren't totally certain.

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

Heavy or Light

Score: 39

DOI: 10.51224/SportRxiv.782

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