New gait performance indices and cognitive functions: a longitudinal pre–post follow-up after rehabilitation in people with Parkinson’s disease
Sanaz Pournajaf
IntroductionGait impairment and motor–cognitive interaction are key features of Parkinson’s disease (PD) and critically affect functional autonomy and fall risk. Wearable inertial sensors allow for objective assessment of gait performance, while the Ф-bonacci gait number has been shown to provide a composite gait performance measure integrating self-similarity, symmetry, and double-support consistency. Building on previous cross-sectional findings, this observational pilot study represents a lon