Fig. 2
From: Effect of external load on scapular upward rotation during arm elevation: the knot concept
Magnetic sensors were fixed to the sternum, scapula (acromion), and humerus (in the neutral position) using double-sided tape on the participants’ dominant side. The bony landmarks of the thorax, humerus, and scapular were palpated and digitized with the stylus sensor (digitizer) to establish the anatomically based local coordinate systems. (a) S : Scapular sensor, T : Thorax sensor, H : Humerus sensor (b) The digitizing of by stylus sensor