Beginner runners still show signs of heart stress a day after a marathon, but experienced runners’ hearts look normal again by then.

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Against

Evidence from Studies

Supporting (1)

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Effects of Long-Term Endurance Exercise on Cardiac Morphology, Function, and Injury Indicators among Amateur Marathon Runners

Cohort Study

Human

2023 Jan 31

Contradicting (0)

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No contradicting evidence found

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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

Effects of Long-Term Endurance Exercise on Cardiac Morphology, Function, and Injury Indicators among Amateur Marathon Runners

Score: 38

DOI: 10.3390/ijerph20032600

Similar Assertions

Experienced runners have less heart cell damage after a marathon than beginners, even though everyone’s heart gets stressed.

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The blood tests used to diagnose heart attacks can’t tell the difference between a healthy athlete’s post-race troponin spike and a real heart attack.

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