Fig. 3
From: The effect of the rotator interval on glenohumeral kinematics during abduction
An illustration of the anatomic scapular, humeral, and thoracic landmarks were calibrated with respect to these technical (bone-embedded) markers, as defined by the International Society of Biomechanics: AA: angulus acromialis, AC: acromioclavicularis, AI: angulus inferior, C7: processus spinosus cervical 7, EL: epicondylus lateralis, EM: epicondylus medialis, IJ: incisura jugularis, PC: precessus corracoideus, TS: trigonum spinae and T8: processus spinosus thoracal 8