Diet study reveals how Low-Carb, Low-Calorie diets impact workout performance
NCT ID NCT06381908
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at how a 10-day low-calorie diet, combined with either low or moderate carbohydrate intake, affects exercise ability and health in overweight but otherwise healthy women aged 20-35. Thirty-six participants followed the diet and completed cycling tests and blood/muscle samples before and after. The goal was to understand how different carb levels during calorie restriction influence physical performance and metabolism.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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36 people
The number who actually took part.
- Started
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Apr 2024
- Finished
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Jul 2025
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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20 to 35 years
- Sex
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Female participants only
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Age: 20-35 * BMI: 25-30 Exclusion Criteria: * Irregular menstruation within the last 6 months (shorter end 24 days or longer end 35 days cycle) * Injuries / pain in the lower body, which prevents participation in intense cycling * Medication consumption that may affect primary outcome measures. * Smoking * Pregnancy * Systematic physical activity more than 2 hours per week
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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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Section for Sport Science, Department of Public Health, Aarhus University
Aarhus C, 8000, Denmark
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