The purpose of the study is to test whether additional protein intake with or without strength training will help to maintain body composition (fat-free mass) after surgical treatment of obesity by gastric by pass. The main hypothesis is that additional protein intake will limit fat-free mass loss during surgery-induced weight loss, and that strength training will have an additional beneficial effect
Design: Open randomised controlled trial comparing, in obese patients after GBP, an additional oral intake of protein with or without a muscular-strengthening physical training programme (18 weeks) to standard medical and nutritional follow-up after bariatric surgery as control (3 groups). Primary outcome: Variation at 6 months after GBP in total and appendicular fat-free mass as assessed by dual-energy X-ray absorptiometry (DXA). Duration of the study: 36 months. Duration of participation for one patient: 7 months. Number of centers: Monocentric study.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
NONE
Enrollment
78
Protein supplementation and strength training
Protein supplementation
GH-Pitié-Salpêtrière
Paris, France
Changes in fat-free mass at 6 months
Time frame: 6 months
Variation at 6 months after GBP of other body composition components
Time frame: 6 months
Variation at 6 months after GBP in dietary habits
Time frame: 6 months
Variation at 6 months after GBP in muscular strength and habitual physical activity
Time frame: 6 months
Variation at 6 months after GBP in quality of life and obesity co-morbidities
Time frame: 6 months
Variation at 6 months after GBP in obesity-associated inflammatory markers
Time frame: 6 months
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