FULL CAN TEST FOR SAPS AND TO ISOLATE THE SUPRASPINATUS MUSCLE? If the empty can test is not able to isolate the supraspinatus, can the full can test do the job then? Again, Boettcher et al. (2009) also examined the EMG activity of 13 muscles in 15 normal subjects and found that the full can test activated 8 other shoulder muscles to the same degree. At the same time, the study of Jain et al. (2017) also evaluated the full can test regarding its ability to detect tears of the supaspinatus. They

WHAT ABOUT THE FULL CAN TEST TO SELECTIVELY TEST THE SUPRASPINATUS MUSCLE? This is another test that is commonly taught at school and which is said to be even more selective in the activation of the supraspinatus. Again, Boettcher et al. (2009) also examined the EMG activity of 13 muscles in 15 normal subjects and found that the full can test activated eight other shoulder muscles to the same degree. Therefore, it cannot be regarded as valid diagnostic tool for supraspinatus pathology. SO HOW CA