Chronic whiplash associated disorders and neck movement measurements: an instantaneous helical axis approach.
This paper presents an assessment tool for objective neck movement analysis of subjects suffering from chronic whiplash-associated disorders (WAD). Three-dimensional (3-D) motion data is collected by a commercially available motion analysis system. Head rotation, defined in this paper as the rotation angle around the instantaneous helical axis (IHA), is used for extracting a number of variables (e.g., angular velocity and range, symmetry of motion). Statistically significant differences were found between controls and subjects with chronic WAD in a number of variables.
Department of Biomedical Engineering and Informatics, University Hospital, Umeå SE-90185, Sweden. Fredrik.Ohberg@vll.se
Fredrik
F
Ohberg
Helena
H
Grip
Urban
U
Wiklund
Ylva
Y
Sterner
J Stefan
JS
Karlsson
Björn
B
Gerdle
D000328:Adult; D000465:Algorithms; D005260:Female; D019416:Head Movements; D006801:Humans; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D021621:Imaging, Three-Dimensional / Q000379:methods*; D008297:Male; D009333:Neck / Q000503:physiopathology; D010808:Physical Examination / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014741:Video Recording / Q000379:methods*; D014911:Whiplash Injuries / Q000175:diagnosis* / Q000503:physiopathology*