Primary endpoint
obese, weight loss, MF-BIA, fat-free mass loss
OBESE
The main study endpoint is the percentage fat-free mass loss at 6 months defined as fat-free mass loss (kg) divided by total weight loss (kg) × 100%. Fat-free mass will be assessed by multi-frequency bio-electrical impedance analysis (MF-BIA) using a Seca® MBCA 515. MF-BIA is an easy and non-invasive measurement tool and has been solidly validated for morbidly obese patients [