Upright Shoulder External Rotation hi exercise tha tak a ni a, a bul berah chuan rotator cuff muscle te a tichak a, shoulder stability leh flexibility a tichak a ni. He workout hi infiammi tan a tha hle a, a bik takin throwing emaw racquet sports-a inhnamhnawih te tan pawh a tha hle a, mimal tan pawh an posture tihchangtlun emaw, ke ruh hliam atanga dam leh emaw tan pawh a tha hle. He exercise hi i tih danah telh hian i ke ruh hliam a veng thei a, infiamna a tichak thei a, ke ruh hriselna zawng zawng a tichak thei bawk.
Ni e, a bul tanna tan chuan Upright Shoulder External Rotation exercise hi an ti thei ngei ang. Mahse, form dik tak neih theih nan leh hliam tuar lo turin light weight atanga tan a pawimawh. Trainer emaw mimal tawnhriat ngah tak emaw exercise hi a dik taka tih a nih theih nan enkawl emaw kaihhruai emaw neih a tha bawk. He exercise hi rotator cuff muscles tihchakna atan a tangkai hle a, hei hi shoulder stability leh hliam venna atana pawimawh tak a ni.