descriptive
Lifting weights that are at least 30% as heavy as your max lift builds muscle just as well as heavier weights, whether you're young or old, new or experienced, as long as you push yourself hard during each set.
Evidence from Studies
Supporting (1)
0
Community contributions welcome
1
The study looks at lifting weights with different amounts of weight and finds that muscle growth can happen with many different weights, not just heavy ones, which matches the claim.
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.