A Device for Prehabilitation of Total Knee Replacement Surgery (Slider): Usability Study (Preprint)

This preprint reports the early usability evaluation of Slider, a low-contact gamified device designed to support presurgery physiotherapy for people awaiting knee replacement surgery. Across a two-week home use period, participants reported that the device was intuitive, practical, and suitable for supporting independent prehabilitation away from clinical settings. The paper presents the preprint version of the work later published in JMIR Formative Research.