Improvement in Physical Performance and Obesity Surgery in Patients Older Than 60 Years

Randomized clinical trial; Single Blind A physical training is recommended in people above 60 yrs. engaged in a weight-losing program, in order to prevent the impairment of physical performance. Therefore a physical training program (endurance and strength training) will be implemented for all subjects participating in the study, starting 1 month before randomization. It will last for 13 months. Patients will be randomized either in the surgical group (gastric banding under general anesthesia) or in the reference group (mild calorie restriction and coaching). Physical performance of patients is evaluated at screening, inclusion, at randomization, 6 and 12 months after randomization.