Using Positive Psychology to Address Emotional Barriers to Physical Activity After Bariatric Surgery: Proof-of-Concept Trial of the Gaining Optimism After Weight Loss Surgery (GOALS) Project

•Physical activity levels are often low after bariatric surgery, despite its importance.•GOALS is a positive psychological/behavioral intervention for exercise after surgery.•The remote intervention was feasible and acceptable in a small single-arm trial.•Participants increased physical activity and improved psychological well-being.•GOALS will next be tested in a pilot randomized controlled trial.