Quantifying Gait Disorders With Wearable Sensors

This is a single-centre, cross-sectional observational study with adjunctive procedure for the healthy voluteers at IRCCS Ospedale San Raffaele's Rehabilitation Department.

Patients (n=50): use of inertial measurement units (IMU) and electromyographic (EMG) data routinely acquired during their standard clinical gait-rehabilitation sessions (no protocol changes; purely observational, data extracted from treatments).

Healthy volunteers (n=50): age- and sex-matched volunteers who complete three 18 meters gait sessions with IMUs on trunk, thighs, shanks and feet and surface EMG on gluteus, quadriceps, hamstrings, tibialis anterior, and gastrocnemius. Healthy volunteers will be enrolled from hospital personnel, family members of the patients in visit at San Raffaele Hospital.

Data \& Analysis: Kinematic (range of motion - ROM, step timing, walking speed) and EMG (activation amplitude/timing) parameters will be extracted. Between-group comparisons will employ t-tests/analysis of variance - ANOVA - (or non-parametric equivalents).