Obesity is one of the most prevalent risk factors for knee osteoarthritis (OA). About a third of obese adults suffer from knee OA which affects their quality of life severely.

While the benefits of walking are well-known and often recommended as a form of exercise in the fight against obesity, the knee pain prevents the affected person from participating in routine walks.

This study examined participants who were undergoing either bariatric surgery or medical management to lose body mass and the effect of weight loss on gait kinematics and knee pain.