title: Trunk strength testing with iso-machines. Part 2: Experimental evaluation of the Cybex II Back Testing System in normal subjects and patients with chronic low back pain.
abstract: This experimental evaluation of Cybex II isokinetic measurement was based on 70 normal subjects and 120 patients with chronic low back pain. It considered: reliability and learning effect; discrimination of individual patients versus normal subjects; relationship to clinical measures; assessment of effort; and a prospective 2-year follow-up of normal subjects to predict future low back pain.
authors.affiliation: Department of Orthopaedic Surgery, Western Infirmary, Glasgow, Scotland.
authors.forename: M
authors.initials: M
authors.lastname: Newton
authors.forename: M
authors.initials: M
authors.lastname: Thow
authors.forename: D
authors.initials: D
authors.lastname: Somerville
authors.forename: I
authors.initials: I
authors.lastname: Henderson
authors.forename: G
authors.initials: G
authors.lastname: Waddell
mesh_terms: D000328:Adult; D001696:Biomechanical Phenomena; D016552:Ergometry / Q000295:instrumentation*; D005069:Evaluation Studies as Topic; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007537:Isometric Contraction / Q000502:physiology*; D017116:Low Back Pain / Q000175:diagnosis* / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D009119:Muscle Contraction / Q000502:physiology*; D005082:Physical Exertion / Q000502:physiology*; D012016:Reference Values; D012727:Sex Characteristics; D013997:Time Factors