Exercise after bariatric surgery: a simple way to keep muscle and bone?
NCT ID NCT07324447
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether a supervised exercise program after bariatric surgery helps patients maintain muscle mass and bone density. Researchers will compare two groups of 54 adults who had gastric bypass or sleeve surgery: one group will follow a structured exercise plan, the other will not. The goal is to see if exercise can prevent muscle loss and keep bones strong after major weight loss.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- supervised physical exercise programme
- What this could lead to
- If it works, this could show that a structured exercise plan after weight-loss surgery helps patients keep muscle and bone strength, improving long-term health.
- What could go wrong
- This is a small, early-stage trial with only 54 participants, so results may not apply to everyone. Exercise programs can be hard to stick with, and benefits may vary.
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 54 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Feb 2026
An estimate. Start dates often move.
- Expected to finish
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Nov 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 years and older
- 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.
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 Patients who are on the waiting list for bariatric surgery (gastric bypass or sleeve) at the Hospital Universitario Virgen del Rocío in Seville, in addition to: * Be 18 years of age or older. * Suitable for physical exercise. * Signature of informed consent. EXCLUSION CRITERIA. * Body weight greater than 150kg. * Distance from the place of residence to the Pablo de Olavide University in Seville greater than 60 km or 45 minutes by car. * Having any of the following conditions: lipedema, cancer survivors, metabolic bone diseases, consumption of medication or presence of pathology that affects bone health. * Patients undergoing dialysis.
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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
2 sites. 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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Hospital virgen del rocio
RECRUITINGSeville, Sevilla, 41013, Spain
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Universidad Pablo de Olavide
RECRUITINGSeville, Sevilla, 41013, Spain
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Mapping the hormone behind Post-Surgery blood sugar crashes
- Can collagen supplements help preserve muscle after Weight-Loss surgery?
- Blood markers may predict muscle loss after Weight-Loss surgery
- Can big data reveal why some patients suffer after Weight-Loss surgery?
- Ancient breathing technique could supercharge Post-Surgery fitness
- Can a blood protein predict metabolic changes after gastric bypass?