10-year running study reveals heart changes in male marathoners
NCT ID NCT04166903
First seen Jun 26, 2026 · Last updated Jun 26, 2026 · Updated 1 time
Summary
This study followed 277 male runners who took part in a 2009 study to see how years of ultra-endurance running affect the heart and body. Researchers measured heart function and blood markers over a decade. The goal is to learn about the long-term effects of extreme exercise on health.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- What this could lead to
- If successful, this could help understand the long-term heart effects of extreme endurance running in men.
- What could go wrong
- This is an observational study, not a treatment trial. It cannot prove cause and effect, and results may not apply to women or casual runners.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Department of Prevention, Rehabilitation and Sports Medicine, Munich, Germany
Munich, Bavaria, 80992, Germany