Individuals with a history of anterior cruciate ligament (ACL) injury and have had an ACL reconstruction (ACLR) are at a greater risk for developing osteoarthritis. The greater risk for developing osteoarthritis is likely caused by too little force or physical activity applied to the knee during weightbearing tasks such as walking. To reduce this decrease in forces during walking following an ACLR, we must first develop effective treatments that can train a person to walk in a way that reduces their risk of developing osteoarthritis. The purpose of this research study is to determine the feasibility and the initial effects of a 6-week training program designed to improve walking mechanics of individuals with an ACL reconstruction.

Have you recently had an anterior cruciate ligament re-injury and will be undergoing revision anterior cruciate ligament reconstruction surgery? If so, you may be able to participate in a study assessing the associations between walking movement and physical activity with knee joint health. Compensation provided.

People who suffer ACL injuries are at an increased risk for knee osteoarthritis, which can lead to chronic pain and disability. In this study, we want to learn if adding vibration to rehabilitation following ACL reconstruction surgery can improve how your joints move while walking. We also want to learn if this vibration can improve how your muscles work and your quality of life compared to rehabilitation alone. *This study is a collaboration with the UNC Sports Medicine Institute*