No relationship was identified between changes in weight and walking performance post-surgery .
Although physical activity performed after bariatric surgery is associated with enhanced weight loss outcomes , there is limited information on patients ' physical activity behaviour in this context .
This systematic review and meta- analysis assessed pre-operative to post-operative changes in physical activity and physical function outcomes among obese adults undergoing bariatric surgery .
Improvement of Physical Functioning of Morbidly Obese Patients Who Have Undergone a Lap-Band® Operation: One-Year Study
Background : The Netherl and s has a population of 20,000 morbidly obese patients , an average of 350 of whom per year undergo a stomach reduction operation  involving the surgical placement of a Lap-B and ® . The quality of life ( QOL ) of a sample of female patients who underwent this operation was studied in a 1-year postoperative study . Methods : The Medical Outcome Study Short Form-36 ( MOS SF-36 ) was used to assess 1-year postoperative quality of life among a sample of 39 female patients aged 19 - 53 years .  QOL was measured at most 20 h preoperatively and 1 year postoperatively using a r and omized pretest/posttest design . Statistical data , after transformation , were analyzed with SPSS Version 7.5 for Windows 95 . Results : The response rate of 92.9 % of patients polled was good , in contrast to earlier findings with this measuring instrument . Mean body mass index ( BMI ) declined from 40.86 kg/m2 preoperatively to 33.14 kg/m2 1 year postoperatively . QOL improved on all scores in the MOS SF-36 . Internal consistency of the scales used was high . Conclusions : The response rate to the MOS SF-36 question naire was high . The surgical placement of a Lap-B and ® result ed in a significant improvement of QOL ( 1 year postoperatively ) on all scores used . The internal consistency of the scales used was high
No relationship was identified between changes in weight and walking performance post-surgery .
Although physical activity performed after bariatric surgery is associated with enhanced weight loss outcomes , there is limited information on patients ' physical activity behaviour in this context .
This systematic review and meta- analysis assessed pre-operative to post-operative changes in physical activity and physical function outcomes among obese adults undergoing bariatric surgery .