Effects of three gait retraining techniques in runners with patellofemoral pain

•The FFOOT, SR10% and FTL groups experienced less pain at 6 months post-gait retraining and greater physical function.•The 3 running conditions could be used in PFP runners in order to reduce pain symptoms and improve functional abilities.•Previous runners’ musculoskeletal injury history should be considerate before a gait retraining implementation.•Clinical improvements are not totally explained by kinematics or electromyography changes in 2-week of gait retraining.