A total of 125 (57.0 %) patients participated in the study. The demographics being, mainly female (258; 98.8%) and Caucasian (148; 56.7%). Surgeries included predominantly lap-band (110; 42.1%); roux-en-y gastric bypass (94; 36%); and sleeve (20; 7.6%). When stratified by low, medium and high physical activity levels, all three groups showed an increasing percent excess weight loss over time during the six months postoperative period (mean: 17.99 to 20.02 at one month versus mean 35.93 to 40.67 at six months). However, there was no correlation between the physical activity levels or the MET-minutes and the percent excess weight loss in the study group as a whole or when stratified by the surgery type.