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 .
Energy expenditure during treadmill walking before and after vertical banded gastroplasty: a one-year follow-up study in 11 obese women.
OBJECTIVE To find out whether weight reduction induced by vertical b and ed gastroplasty ( VBG ) alters the energy expenditure in severely obese women during treadmill walking . DESIGN A prospect i ve one year follow-up study , patients being their own controls . SETTING University hospital , Sweden . SUBJECTS A consecutive series of 11 women who had VBG .  MAIN OUTCOME MEASURES Indirect calorimetry , body mass index ( BMI ) , preset and comfortable walking speeds , heart rate , perceived exertion , and quality of life . RESULTS 11 patients were evaluated .  Mean BMI ( kg/ml ) decreased from 41 ( range 36 - 46 ) before to 32 ( range 25 - 37 ) 12 months postoperatively . The energy expenditure decreased significantly both at comfortable and preset walking speeds . The comfortable walking speed increased from 2.7 km x h(-1 ) ( range 1.3 - 3.4 ) before operation to 3.8 ( range 2.0 - 4.2 ) one year postoperatively ( p = 0.003 ) . All bodily variables in the SF-36 question naire showed improvement from 6 months onwards . CONCLUSION Weight reduction in women reduces the energy expenditure during walking both at comfortable and preset speeds . The comfortable walking speed is increased . The improvements are reflected in the patients ' own assessment
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 .