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 .
Marked weight reduction lowers resting and exercise blood pressure in morbidly obese subjects.
Obesity and high blood pressure ( BP ) often coexist . Weight reduction lowers resting BP but its effect on BP during exercise ( a predictor of target organ damage ) has not been evaluated . Blood pressure was measured at rest and during cycling , before and after weight reduction induced by gastric restriction . Nineteen subjects ( 4 male ) , 41 + /-2 ( SEM ) years of age and body mass index ( BMI ) of 43 + /- 0.9 kg/m2 , were studied . On each occasion  BP was measured at rest , at a steady state of 0 and 25 watts , at peak exercise and 1 min into recovery .  Body weight was reduced by 28 % + /- 6 % and BMI decreased from 43.3 + /- 0.9 to 31.5 + /- 0.7 kg/m2 ( P < .01 ) . Both BP and heart rate , at rest and at all exercise intensities , were significantly lower after weight reduction . Resting BP decreased from 133 + /-4/87 + /- 3 mm Hg to 115 + /- 4/77 + /- 2 mm Hg ( P < .001 ) , and BP at peak exercise decreased from 181 + /- 8/98 + /- 4 to 162 + /- 6/83 + /- 5 mm Hg ( P < .001 ) . The change in resting systolic BP did not correlate with the change in body weight or with the change in heart rate , but it correlated with the baseline systolic BP ( R = 0.61 ; P < .005 ) . It is concluded that marked weight reduction reduces BP at rest and at all exercise intensities . Gastroplasty should be considered as an option in morbidly obese hypertensive patients who are not well controlled with conventional treatment , and who fail to lose or to maintain a reduced weight by calorie restriction alone
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 .