Flexibility, Resistance, Aerobic, Movement Execution (FRAME) training program to improve gait capacity in adults with Hereditary Spastic Paraplegia: protocol for a single-cohort feasibility trial - Boccuni, Leonardo; Bortolini, Marco; Stefan, Cristina; Dal Molin, Valentina; Dalla Valle, Giacomo; Martinuzzi, Andrea (Frontiers in Neurology, 2025)