Understanding how nutrition affects muscle function in bariatric surgery patients

The Role of Nutrition in Muscle Function of Bariatric Surgery Patients

Observational Concordia University, Montreal · NCT06680492

This study is trying to see how nutrition and protein intake affect muscle strength and function in people who have had bariatric surgery.

Quick facts

Study typeObservational
Enrollment75 (estimated)
Ages18 Years to 65 Years
SexAll
SponsorConcordia University, Montreal Academic / other
Locations1 site (Montreal, Quebec)
Trial IDNCT06680492 on ClinicalTrials.gov

What this trial studies

This observational study aims to investigate the relationship between nutrition, protein intake, and muscle function in patients who have undergone bariatric surgery. By analyzing changes in body composition and conducting assessments like the Handgrip Strength Test and the 6-Minute Walk Test, the study seeks to clarify the nutritional needs of these patients. Approximately 75 participants, aged 18 to 65, will be recruited from the Bariatric Surgery Clinic at McGill University Health Center. The findings could help establish better dietary guidelines for post-bariatric surgery care.

Who should consider this trial

Good fit: Ideal candidates are men and women aged 18 to 65 who are undergoing their first bariatric surgery.

Not a fit: Patients who are pregnant, breastfeeding, or undergoing a second bariatric surgery will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved nutritional guidelines that help preserve muscle function and overall health in bariatric surgery patients.

How similar studies have performed: While there is limited strong scientific evidence on protein intake post-bariatric surgery, this study aims to fill that gap, indicating a novel approach in this area.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Male and female
* Aged 18 to 65 years old
* Undergoing first bariatric surgery (any type)
* Diabetics and non-diabetics
* Non-smokers and non-cannabis consumers

Exclusion Criteria:

* Pregnant and breastfeeding women
* Individuals undergoing second bariatric surgery
* Regular smokers and cannabis consumers
* Current use of Ozempic (or Ozempic-like medication) and anti-psychotic meds
* Limited physical mobility (using walking aids such as canes, walkers, or wheelchairs) and issues with hand resistance
* Kidney disease, non-controlled / unstable hypertension and hypothyroidism, and any metabolic disease other than diabetes

Where this trial is running

Montreal, Quebec

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Obesity, Diabetes, Nutrition, Physical HealthBody Composition ChangesMuscle Function, Handgrip Strength TestProtein MetabolismBariatric Surgery PatientsObesityBariatric sugeryProtein function
Last reviewed 2026-06-13 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.