Three-Dimensional Motion Analysis of the 2nd Cervical Spinous Process at End Range Cervical Rotation in Different Scapular Positions Using 3D Digitizer

Figure 1

Set-up for measurement of end range cervical rotation and scapula position. (a) A laser pointer was fixed to the head with strap and the light (red arrow) centered on a band (width; 50 mm) set within an adjustable height frame to facilitate cervical rotation and minimize flexion and extension. (b) Resting position. (c) Scapular depression was standardized by carrying a backpack on the chest containing a 6 kg weight. (d) Scapular adduction was standardized with a nonelastic belt securely fastened around the chest wall with both scapulae retracted. (e) Scapular abduction was standardized with a nonelastic belt securely fastened around the chest wall with both scapulae protracted.

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