title: Testing interventions to preserve walking ability: progress against disability, one step at a time.
authors: Evan C
authors: EC
authors: Hadley
mesh_terms: D000368:Aged; D006233:Persons with Disabilities / Q000534:rehabilitation*; D005080:Exercise Test / Q000379:methods*; D005081:Exercise Therapy / Q000379:methods*; D006801:Humans; D051346:Mobility Limitation; D011379:Prognosis; D016138:Walking / Q000502:physiology*