AI-based Model for Rehabilitation Engagement and Motor Performance Evaluation in Pediatric Patients: A Pilot Study

This validated questionnaire is intended to evaluate the usability and feasibility of a system or product. It is composed of 10 items assessing factors such as system complexity, ease of use, and functionality integration. Each item is proposed on a 5-points Likert scale, with minimum value 1 and maximum value 5. Higher overall values stand for a higher degree of agreement with respect to the statement provided by the single item. For odd items, higher values stand for higher usability. For even items, higher values stand for lower usability.

This measure is intended to capture the therapist's observation of patient engagement. PRIME-SP is a validated self-reported questionnaire that is composed of three main parts: Part A, where the therapist can perform an overall evaluation of patient engagement according to a 5-point Likert scale (from 0 to 4, with higher values corresponding to positive engagement); Part B, where the therapist can perform a domain-dependent (affective, cognitive, behavioral domains) evaluation of patient engagement according to a 5-point Likert scale (from 0 to 4, with higher values corresponding to positive engagement); Part C, where the therapist can take free notes about factors and circumstances that he/she believes may have affected patient engagement in the session.

This objective measure is intended to capture the patient's continuous engagement level during the rehabilitation session. The AI-based model infers the engagement state using feed-forward neural networks that process real-time physiological data (such as HRV and EDA) and inertial signals (IMU). The model provides a categorical evaluation of engagement (low vs high).