Wearable Sensor–Derived Gait Parameters Across Self-Reported Physical Activity Levels in Individuals With Knee Osteoarthritis and Healthy Controls: Pilot Cross-Sectional Validation Study

Charles Amoatey Odonkor   ¹ , MD ;   Siri Bohacek   ² , BA ;   Salman Hirani   ² , MD ;   Wei Zhang   ³ , PhD ;   Amir Muaremi   ⁴ , PhD ;   Heike Leutheuser   ⁵ , PhD ;   Matthew Smuck   ¹ , MD

¹ Division of Physiatry, Department of Orthopedics and Rehabilitation, Yale University, New Haven, CT, United States

² Department of Anesthesia and Perioperative Medicine, Oregon Health & Science University, Portland, OR, United States

³ Laboratory of Movement Analysis and Measurement, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland

⁴ Translation Medicine Department, Novartis Institutes for BioMedical Research, Basel, Switzerland

⁵ Chair of Machine Learning in Medicine, Department of Computer Science, University of Bayreuth, Bayreuth, Germany