No-Gym workout: HIIT with just your body weight may boost fitness in overweight adults
NCT ID NCT07582718
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether a supervised, equipment-free high-intensity interval training (HIIT) program can improve heart and muscle fitness, body composition, and blood markers in adults aged 18-55 who are overweight or obese. Participants will do body-weight exercises in small groups for 10 weeks. The goal is to see if this time-efficient workout is an effective and accessible way to improve health.
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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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About 40 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Nov 2022
- Expected to finish
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Jun 2026
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 55 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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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: * Adults aged 18 to 55 years. * Body mass index (BMI) between 25 and 35 kg/m². * Able to provide written informed consent. * Able to safely participate in high-intensity interval training. * For participants with BMI \> 30 kg/m²: medical clearance from their general practitioner. Exclusion Criteria: * BMI \< 25 or \> 35 kg/m². * Presence of any chronic medical condition other than overweight/obesity. * Known cardiovascular, metabolic, respiratory, or musculoskeletal disease that contraindicates high-intensity exercise. * Pregnancy. * Inability to perform exercise testing or complete the WB-HIIT program. * Any condition judged by investigators to interfere with participation or data interpretation.
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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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Université libre de Bruxelles (ULB)
RECRUITINGBrussels, Belgium
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