User Requirements for a Clinical Interface to Support Lower Limb Rehabilitation Using Wearable Inertial Sensors: An Iterative Design Study

This preprint examines clinician-centred user requirements for wearable inertial sensor systems supporting lower-limb rehabilitation. Through iterative interviews and mockup evaluations with rehabilitation clinicians, the study identifies requirements around clinically meaningful movement metrics, pragmatic sensor setup and calibration, interpretable longitudinal visualisation, and workflow-aligned reporting. It argues that successful translation of wearable sensing into practice depends not only on measurement accuracy but also on usability, interpretability, and compatibility with routine clinical work.