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.
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.
Newton
M
M
Department of Orthopaedic Surgery, Western Infirmary, Glasgow, Scotland.
Thow
M
M
Somerville
D
D
Henderson
I
I
Waddell
G
G
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