Clinical trial Recruiting at 1 site Interventional Ages 18 to 60

5-week combined aerobic and strength exercise after bariatric surgery

Official title: Effect of a Concurrent Exercise Program on Muscle Quality, Body Composition, Functional Response, and Quality of Life in Individuals Undergoing Bariatric Surgery: Protocol for a Randomized Controlled Clinical Trial

Run by Universidad Autónoma de Chile · NCT07423780 · Data updated 2026-11-12

This test tries a 5-week combined aerobic and strength exercise program for adults recovering from sleeve gastrectomy or gastric bypass to see if it improves muscle quality, body composition, physical function, and quality of life.

Quick facts

Study typeInterventional
Ages18 Years to 60 Years
SexAll
Enrollment87 (estimated)
SponsorUniversidad Autónoma de Chile
Academic / other
Locations1 site (Santiago, Santiago Metropolitan)
StatusRecruiting
StartedAugust 11, 2025
Main results expectedDecember 31, 2027
Study endsDecember 31, 2028
Registry record updatedSeptember 25, 2026
Trial IDNCT07423780 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults aged 18 to 60 who underwent sleeve gastrectomy or Roux-en-Y gastric bypass at Clínica BUPA Santiago and have a medical indication for metabolic rehabilitation are eligible, including those with conditions like insulin resistance, dyslipidemia, hypertension, or hypothyroidism.

Probably not a fit

Patients with type 1 or type 2 diabetes, severe musculoskeletal disorders limiting ambulation, prior cardiovascular events, severe cardiorespiratory disease, dependence on supplemental oxygen, or current bariatric surgery complications are excluded and unlikely to benefit from this program.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This single-center, prospective, non-randomized controlled trial will enroll 84 adults (18–60 years) who had sleeve gastrectomy or Roux-en-Y gastric bypass and have a medical indication for metabolic rehabilitation. Participants are allocated to an intervention group that completes a supervised concurrent (aerobic + resistance) exercise program twice weekly for 5 weeks or to a control group receiving usual care without a structured exercise program. Outcomes include rectus femoris muscle quality as the primary endpoint, with secondary measures of body composition, functional response, quality of life, and adherence-related dose-response effects. Assessments occur at baseline (postoperative week 4) and 7 weeks later (after the 5-week intervention plus one week of rest).

Why it matters

Potential benefit: If successful, the program could help preserve or improve muscle quality and physical function during the early recovery period after bariatric surgery, potentially improving recovery and quality of life.

How similar studies have gone: Longer and later-starting exercise programs after bariatric surgery have shown benefits for muscle mass and function, but short-term concurrent programs begun in the early postoperative phase are less well tested.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria

* Adults aged 18-60 years.
* Participants eligible for the institutional PAD (Pago Asociado a Diagnóstico) bariatric surgery program with medical indication for metabolic rehabilitation.
* Undergoing sleeve gastrectomy or Roux-en-Y gastric bypass at Clínica BUPA Santiago.
* Medical indication for metabolic rehabilitation.
* Able and willing to provide written informed consent.

Exclusion Criteria

* Type 1 diabetes mellitus or type 2 diabetes mellitus with severe complications (including stage G4-G5 nephropathy, severe autonomic neuropathy, or high risk of exercise-related hypoglycemia).
* Severe musculoskeletal disorders limiting participation in the exercise program.
* Acute cardiovascular event within the previous 3 months or medical contraindication to supervised exercise.
* Severe cardiorespiratory disease or dyspnea at rest or with minimal exertion.
* Dependence on supplemental oxygen.
* Bariatric surgery complications (e.g., leak, bleeding, stenosis, or intra-abdominal abscess).
* Liver failure, kidney failure, or any other clinical condition compromising safe participation in the exercise program.

Where it's running

  • Clínica BUPA, Santiago
    Santiago, Santiago Metropolitan, Chile
    Recruiting

Study contacts

  • Principal investigator: María José Pabst Pérez, MSc — Universidad Autónoma de Chile
  • Study coordinator: María José Pabst Perez, MSc
  • Email: majose.pabst@gmail.com
  • Phone: +56950023025

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.