title: Author response.
authors.forename: Daniel
authors.initials: D
authors.lastname: Riddle
authors.forename: Paul W
authors.initials: PW
authors.lastname: Stratford
authors.forename: Joshua A
authors.initials: JA
authors.lastname: Cleland
mesh_terms: D006801:Humans; D009140:Musculoskeletal Diseases / Q000534:rehabilitation*; D017063:Outcome Assessment, Health Care; D026741:Physical Therapy Modalities