Research theme: neuromuscular diseases. In this theme, research focusses on functioning of patients with neuromuscular diseases (postpoliomyelitis syndrome PPS, Charcot-Marie-Tooth disease and Amyotrophic Lateral Sclerosis, ALS) and included longitudinal studies on functional outcomes, identification of prognostic factors for the course of functioning, determinants of functioning, intervention studies to improve or preserve functioning and systematic reviews of literature.