Fig. (3) Each score of passive scapular motion grading score to each direction in 3 groups.

20s, normal twenties; 50s, normal fifties; IFS, idiopathic frozen shoulder; Down rotate, Downward rotation; Up rotate, Upward rotation; Post tilt, Posterior tilt; Ant tilt, Anterior tilt; Ext rotate, External rotation; Int rotate, Internal rotation; ns, no significance; * p < 0.05; ** p < 0.01.