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Sit less, lose more: new study tests Pre-Surgery fitness program

NCT ID NCT07663942

Knowledge-focused Sponsor: Hospital de Sao Sebastiao Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looks at whether a program to reduce sitting time and increase light activity before bariatric surgery helps women with obesity achieve better weight loss and health. Seventy-two women scheduled for surgery will be guided to replace sedentary behavior with movement. Researchers will track fitness, weight loss, and health complications, and also analyze blood and tissue samples to understand how the body responds.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
sedentary behavior reduction program (SBRPro)
What this could lead to
If successful, this could show that a simple program to sit less and move more before bariatric surgery improves weight loss and overall health after surgery.
What could go wrong
This is an early-stage observational study with only 72 participants, so results may not apply to everyone. It tests a behavioral change, which can be hard to maintain, and does not directly test a new drug or treatment.

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

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

About 72 people

The number the study aims to enrol. It can still change while the study runs.

Started

Apr 2026

Expected to finish

Apr 2031

An estimate. End dates often move.

Lead sponsor

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

18 years and older

Sex

Female participants only

Healthy volunteers

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

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Adult women (≥ 18 years); * BMI of 30-45 kg/m2; * Scheduled for primary vertical sleeve gastrectomy or Roux-en-Y gastric bypass; * Capacity to provide informed consent, adequate proficiency in the national language; * Access to the internet and mobile phone communication. Exclusion Criteria: * Previous bariatric surgery or gastric surgical procedure; * Physical incapacity or medical contraindications precluding physical fitness testing or participation (active cardiac disease, uncontrolled hypertension, severe joint disease); * Pregnancy or breastfeeding; * Inability to provide informed consent or comply with study procedures; * Patients with type 1 or 2 diabetes mellitus.

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Conditions

The condition(s) this trial relates to.

Obesity obesity disorder Sedentary Behavior Weight Loss

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Obesity (disorder)

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. 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

  • Unidade Local de Saúde de Entre Douro e Vouga

    RECRUITING

    Santa Maria da Feira, 4520-211, Portugal

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