A 6-week prehabilitation programme (exercise, diet, psychology) before bariatric surgery did not change 12-month weight loss versus standard education. Small 3-month gains in weight and grip strength faded by 6 months. No added safety risk.
Total weight loss at 12 months was 23.7 kg (SD 5.1) with prehabilitation and 23.4 kg (SD 2.7) with standard care, a 0.3 kg difference (95% CI −1.3 to 1.8; p = 0.75) that was not statistically significant and not clinically meaningful.
At 3 months, prehabilitation showed a 2.9 kg advantage in weight loss (p < 0.001) and significant improvements in body fat percentage, diastolic blood pressure, grip strength, and SF-36 mental score, but none of these differences remained significant at 6 or 12 months.
No serious adverse events occurred in either group over 12 months, and the safety profile was identical between groups; the prehabilitation group incurred an additional ¥6,792 in total cost, entirely from the programme fee, with no sustained effectiveness gain to offset it.
Single-blind randomized controlled trial. Sixty-four participants were randomized across two intervention arms and assessed at twelve weeks for the primary outcome…
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