KnexFlex is an affordable, wearable knee-angle tracking device paired with an analytics-driven platform that transforms raw motion data into educational, actionable feedback. The prototyped device uses a magnetic encoder to continuously measure joint-angle movement during walking and stores that data securely for analysis. Users can view real-time joint angles and gait-cycle graphs on their phone, allowing them to immediately understand how their movement compares to healthy norms. This live feedback allows for near-immediate adjustment and improvements, a process we call active analysis.

Founded by Andrew Metz, the project benefits individuals recovering from injury, young athletes, elderly users, schools, and physical therapy environments that lack access to expensive motion-capture technology. Unlike existing solutions designed for professional teams, KnexFlex prioritizes accessibility, affordability, and education. The prototype all-in cost of USD 40 makes it price-inclusive.