When you lift weights until your muscles burn and feel fatigued, the buildup of waste products might help your muscles grow bigger, but the main reason they grow is still from the physical force you're using.

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Against

Evidence from Studies

Supporting (1)

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Community contributions welcome

1

Potential Mechanisms for a Role of Metabolic Stress in Hypertrophic Adaptations to Resistance Training

Narrative Review

2013 Mar

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

Potential Mechanisms for a Role of Metabolic Stress in Hypertrophic Adaptations to Resistance Training

Score: 1

DOI: 10.1007/s40279-013-0017-1

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