Reflective markers were placed on 10 bony landmarks of the arm and trunk: processus spinosus of the seventh cervical and eighth thoracic vertebra, incisura jugularis
, processus xiphoideus, acromioclavicular joint, medial and lateral epicondyle, radial and ulnar styloid, and distal head third metacarpal (Figure 2(b)).
The markers were attached to the xiphoid process, incisura jugularis
(suprasternal notch), C7, T8, and, on the dominant side, angulus acromialis, deltoi'dus tuberosity, medial and lateral epicondyles of the elbow, radial and ulnar styloid processes (Wu et al.
Segment Bony Landmark Abbrev T8 spinous process T8 Thorax Xiphoid process of the sternum PX C7 Spinous process C7 Incisura Jugularis
of the sternum IJ Angulus acromialis AA Scapula Trigonum Spinae Scapulae TS Angulus Inferior Scapulae AI Epicondylus medialis EM Humerus Epicondylus lateralis EL Glenohumeral rotation centre * GH Abbrev: Abbreviations.