Wearable inertial measurement units (IMUs) are used for estimating joint kinematics without motion capture equipment. Real-time estimation of the foot progression angle (FPA) with IMUs is used for portable and customized gait retraining for knee osteoarthritis by providing feedback to the patient based on whether their FPA is close to their therapeutic target angle. However, the vibrotactile feedback that users receive directly depends on the accuracy of IMU-based kinematics. Here, we present data from 30 subjects used for an investigation into the effect of kinematic tracking accuracy on an individual's ability to learn a toe-in gait with vibrotactile cues.

Citation: Rokhmanova N, Pearl O, Kuchenbecker KJ, Halilaj E (2024) IMU-Based Kinematics Estimation Accuracy Affects Gait Retraining Using Vibrotactile Cues. IEEE Transactions on Neural Systems and Rehabilitation Engineering. 10.1109/TNSRE.2024.3365204