People who do CrossFit and people who lift weights end up with about the same size leg muscles after years of training — the type of workout doesn’t seem to change muscle growth much.

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Pro

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Against

Evidence from Studies

Supporting (1)

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Community contributions welcome

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Muscle power and muscle hypertrophy of the lower limbs among practitioners of functional fitness training and strength training

Cross-Sectional Study

Human

The study found that people who did functional fitness and those who did traditional strength training both ended up with similarly big thigh muscles, even though they did different kinds of exercises. So yes, both types of training build muscle in the same way.

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 power and muscle hypertrophy of the lower limbs among practitioners of functional fitness training and strength training

Score: 54

DOI: 10.1007/s11332-023-01108-1

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