SHOULDER ASSESSMENT PART 12: APPREHENSION (CRANK) TEST FOR SHOULDER INSTBALITY The first test to assess for anterior shoulder instability is the Apprehension or Crank Test. When your patient feels apprehension during the test, it is considered positive for anterior instability. On top of that, pain anteriorly can indicate external impingement syndrome, while posterior pain could be indicative for internal glenoid impingement according to Cools et al. (2008). #Shoulderassessment #Shoulderinstabil