Fasted exercise: boon or bust for brain and body?
NCT ID NCT05919979
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 2 times
Summary
This study looked at how doing high-intensity exercise while fasting for 24-34 hours changes energy use and thinking skills in 25 healthy adults. Participants either rested or exercised during the fast, and researchers measured things like breathing, blood sugar, and cognitive tests. The goal is to better understand how fasting and exercise work together.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
high-intensity exercise during fasting
What this could lead to
If successful, this could help clarify how exercise during fasting affects metabolism and brain function, potentially guiding future health recommendations.
What could go wrong
This is a very small pilot study (25 people) in healthy adults, so results may not apply to the general population or lead to any immediate practical advice.
Disclaimer
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the original study
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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The condition terms exactly as the trial's registrant entered them.
Contacts and locations
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Locations
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Instiuto Mixto Universitario Deporte y Salud
Granada, Granada, 18007, Spain