AC Resisted Extension Test

Execution:

1. Patient is in sitting position
2. The patient’s shoulder is flexed to 90° with a flexed elbow
3. The patient then resists a horizontal adduction force applied by the examiner

 

Positive Outcome: Pain on top of the shoulder in the area of the AC joint

Study	Reliability	Sn	Sp	LR+	LR-
Chronopoulos et al. (2004)	NA	72	85	4.8	0.33
Comment: The authors do not recommend this test as a stand-alone test, but recommend it as a part of a test cluster