Knee symmetry analyser

Movement asymmetry can be caused by diseases such as cerebral palsy, stroke or Parkinson's disease [1], in many cases it can also be the outcome injury due to sports or even everyday activities. Regaining full Range Of Motion (ROM) is the main focus of rehabilitation and in some case such as a torn ACL, achieving full symmetry before surgery helps to improve the outcome of the consequent ACL reconstruction surgery. It has been identified that patients who achieve symmetrical ROM and strength have better subjective and objective outcomes, regardless of articular damage found at the time of surgery [2]. This work reports on the development of a wearable smart sensor system which is able to analyse gait symmetry in real-time, and provide feedback to the user to alert them of gait asymmetry allowing them to dynamically modify their gait and achieve optimum rehabilitative conditions.