Nutrition and Muscle Function After First Bariatric Surgery Study of Protein Intake, Body Composition, and Muscle Strength In Adults Aged 18 to 65

What this Trial Is About

Researchers are evaluating how protein intake affects muscle function, body composition, and metabolism after bariatric surgery. The study aims to better understand the nutritional needs of patients following this surgery, as current protein intake recommendations lack strong scientific evidence. The study will include men and women aged 18 to 65 who have undergone bariatric surgery at the Bariatric Surgery Clinic, McGill University Health Center. Participants will be observed at baseline before surgery and then followed up at 3 and 6 months after surgery. During these visits, researchers will measure changes in weight, body mass index BMI, fat mass, and overall body fat percentage. They will also assess resting energy expenditure, substrate oxidation, nutrition and protein intake, as well as hormone and inflammatory marker levels. Participants will attend assessments before surgery and at 3 and 6 months post-operation to provide data through tests and questionnaires. Muscle function will be evaluated, including handgrip strength. This study involves monitoring nutrition, body composition, and metabolism to better understand how these factors change after bariatric surgery over a six-month period.

The Role of Nutrition in Muscle Function of Bariatric Surgery Patients