APPREHENSION TEST FOR ANTERIOR SHOULDER INSTABILITY Anterior instability - unlike other shoulder pathologies - can very well be diagnosed by clinical testing. According to the review and meta-analysis from Hegedus et al. (2012) that we posted about a week or two ago, the Apprehension test has a sensitivity of 66% and a specificity of 95%. This means a positive test increases the odds by LR 17.21 and a negative test decreases the odds of anterior instability by LR- of 0.39. This test is most ofte