Mixed
Post-bariatric exercise training yields approximately 1.94 kg of additional weight loss compared to surgery alone, with aerobic-resistance combinations and starting exercise ≥1 year post-surgery producing the greatest effects.
If you have had bariatric surgery, adding exercise to your routine will help you lose more weight and improve your physical function compared to relying on surgery and diet alone. For the best results, wait at least one year after surgery to start a structured exercise program, and combine aerobic activities (like walking or cycling) with resistance training (weight lifting). Aim for 1.3 to 4 hours of exercise per week, spread over 2-3 sessions.
Compared with those without exercise intervention after surgery, patients engaging in physical exercise were associated with greater weight loss (weighted mean difference (WMD) −1.94 kg; 95% CI −3.18 to −0.69; n=8)... patients engaging in exercise 1 year or more after surgery and patients received a aerobic–resistance exercise experienced more weight loss.
Why this rating
Moderate quality evidence based on 8 RCTs, though heterogeneity and small sample sizes limit certainty.
Source
Effect of physical exercise on weight loss and physical function following bariatric surgery: a meta-analysis of randomised controlled trials
Ziqi Ren et al. · BMJ Open · 2018
DOI 10.1136/bmjopen-2018-023208
Related findings · Mixed
- Bariatric surgery (VSG and RYGB) is the most effective and sustainable treatment for obesity, producing marked and sustained weight loss that non-surgical interventions cannot match.Strong
- Severely protein-deficient diets (2–3% energy) induce lean body mass loss and metabolic imbalance, whereas adequate protein intake (0.66 g/kg/d minimum) is a prerequisite for maintaining muscle, bone, and physiological function.Strong
- For patients with Class III obesity (BMI >39.9 kg/m2), metabolic bariatric surgery (MBS) is significantly more effective than any currently approved medication, with BilioPancreatic Diversion (BPD) showing the highest estimated weight loss.Strong
This is one finding among thousands. Every one is graded and traced to its source, so you can see what the evidence actually supports. Browse the research →