Running and swimming may temporarily stress kidneys, study finds
NCT ID NCT04929418
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study looked at how a 10 km run and a 1.5 km swim affect kidney function in 40 healthy, active adults. Researchers used sensitive urine tests to detect subtle kidney changes that standard blood tests might miss. The goal was to better understand temporary kidney stress from intense exercise, not to test a treatment.
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 identify early signs of kidney stress from exercise, leading to better guidance for athletes and safer training practices.
- What could go wrong
- This is a small, completed observational study with only 40 participants. Results may not apply to non-athletes or people with health conditions, and the findings are exploratory, not definitive.
This is an AI summary of the original study and may miss details. Read our disclaimer.
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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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Hospital Clínico Universitario
Valladolid, Valladolid, 47003, Spain
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