SHOULDER ASSESSMENT SERIES PART 24: SPEED'S TEST At last, the biceps and the labrum are two important structures for shoulder stability. A lesion in either one of those structures, which usually occurs through trauma, can be the cause of shoulder pain and instability. The Speed's test is one way to assess strength and integrity of both the biceps as well as the superior labrum, where the long biceps tendon originates from. #shoulderinstability #shoulderassessment | Physiotutors