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Strong Support
correlational
Analysis v1
History

Elite middle-distance runners with more of a certain muscle chemical (carnosine) tend to get worse, not better, after intense training and rest—meaning their performance drops instead of improving.

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Against

Evidence from Studies

Supporting (1)

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Community contributions welcome

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Muscle fiber typology is associated with the incidence of overreaching in response to overload training.

Cohort Study
Human
2020 Oct 1

Contradicting (0)

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No contradicting evidence found

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Source Study

Muscle fiber typology is associated with the incidence of overreaching in response to overload training.

Score: 45
DOI: 10.1152/japplphysiol.00314.2020

Similar Assertions

Elite middle-distance runners with more fast-twitch muscle fibers (based on certain chemical levels) might be more likely to get overtrained after intense training, while those with more slow-twitch fibers tend to recover better and perform stronger after rest.

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