difference between full can and empty can test
Empty can/Full can tests In both tests, the patient is placed in a standing or sitting position, and the arms are raised parallel to the ground in the scapular plane.[2] The tests differ in the rotation of the arm; in the Empty can test, the arm is rotated to full internal rotation (thumb down) and in the Full can test, the arm is rotated to 45Â° external rotation.[1] Once rotated, the clinician pushes down on either the wrists or the elbow, and the patient is instructed to resist the downward pressure.[1][2][3]