Exercise plus diet: the secret to lasting metabolic health?
NCT ID NCT05806801
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study looks at what happens inside your fat tissue when you lose weight with or without exercise. 68 adults with obesity will lose 10% of their body weight through diet, with some also doing moderate exercise. Researchers will measure insulin sensitivity, fat breakdown, and changes in fat tissue structure. After weight loss, participants are followed for 6 months to see if exercise helps maintain health benefits even if weight returns.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Moderate intensity continuous exercise (MICT) vs. no exercise
- What this could lead to
- If successful, this could reveal why exercise plus diet is better for metabolic health than diet alone, even after some weight is regained.
- What could go wrong
- This is a small, early-stage observational study (68 participants) focused on mechanisms, not a treatment. Results may not apply to older or more diverse populations.
This is an AI summary of the original study and may miss details. Read our disclaimer.
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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About 68 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jul 2023
- Expected to finish
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May 2028
An estimate. End dates often move.
- 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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18 to 40 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion criteria * Age: 18-40 * Body Mass Index: 30-40 kg/m2 * Weight stable (±3kg for greater than or equal to about 2 months) * No regularly planned exercise/physical activity * Women must have regularly occurring menses and must be premenopausal Exclusion criteria * EKG abnormalities * Evidence/history of cardiovascular disease, diabetes or other metabolic disease * Medications known to affect lipid or glucose metabolism * Pregnant or lactating * Tobacco or e-cigarette use * Prior experience of hypersensitivity to insulin, human albumin, and potassium chloride injection. * Allergies/hypersensitivity to local anesthetics of the amide type (e.g., lidocaine) * History of hyperkalemia or potential for developing hyperkalemia (including but not limited to taking drugs that may induce hyperkalemia such as cardiac glycosides or potassium sparing diuretics) * Anti-coagulant medication (e.g., Coumadin, Rivaroxaban) and Lidocaine allergy/sensitivity are exclusion criteria for the biopsy procedure.
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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.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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University of Michigan
RECRUITINGAnn Arbor, Michigan, 48109, United States
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