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Table 1 Equivalence of X, Y and Z axes with the movement that they represent

From: Studying upper-limb kinematics using inertial sensors: a cross-sectional study

Surface placement: Humerus Ulna and radius Scapula Sternum
Anatomical segment represented: Humerus Forearm Scapula Thorax
 X IN-EX PR-SU AN–PO Axial rotation
 Y AB-AD ElFL–EX PR–RE Flexion and extension
 Z FL-EX Carrying angle ME-LA Lateral rotation