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the claim

CrossFit training builds muscle mass.

the verdict
INSUFFICIENT LEANING
Recorded sources
3 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that CrossFit training builds muscle mass?

Unclear. The retrieved evidence only partially addresses whether CrossFit builds muscle mass: one study reports CrossFit athletes tend to have high muscle mass, and another notes unresolved muscle-mass changes in CrossFit trainees on a ketogenic diet. Neither directly demonstrates that CrossFit training itself causes muscle mass gain.

Verdict: PARTIAL LEAN · 3 sources for, 0 against · Last checked

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Evidence for · 3
CrossFit
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CrossFit. (n.d.). en.wikipedia.org. https://en.wikipedia.org/wiki/CrossFit

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More for · 2
Evaluation of Body Composition in CrossFit® Athletes and the Relation with Their Results in Official Training
2022
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Menargues-Ramírez, R., Sospedra, I., Holway, F. E., Hurtado-Sánchez, J. A., & Martínez-Sanz, J. M. (2022). Evaluation of Body Composition in CrossFit® Athletes and the Relation with Their Results in Official Training. doi.org. https://doi.org/10.3390/ijerph191711003

The Three-Month Effects of a Ketogenic Diet on Body Composition, Blood Parameters, and Performance Metrics in CrossFit Trainees: A Pilot Study
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The Three-Month Effects of a Ketogenic Diet on Body Composition, Blood Parameters, and Performance Metrics in CrossFit Trainees: A Pilot Study. (n.d.). cir.nii.ac.jp. https://doi.org/10.3390/sports6010001

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