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Rehabilitation training programs have been proposed as one strategy to address aberrant gait mechanics. We developed the anterior cruciate ligament specialized post\u2010operative return\u2010to\u2010sports (ACL\u2010SPORTS) randomized control trial to test the effect of 10 post\u2010operative training sessions consisting of strength, agility, plyometric, and secondary prevention exercises (SAPP) or SAPP plus perturbation (SAPP\u2009+\u2009PERT) training on gait mechanics after ACLR. A total of 40 male athletes (age 23\u2009\u00b1\u20097 years) after primary ACLR were randomized to SAPP or SAPP\u2009+\u2009PERT training and tested at three distinct, post\u2010operative time points: 1) after impairment resolution (Pre\u2010training); 2) following 10 training sessions (Post\u2010training); and 3) 2 years after ACLR. 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