Table Common Work-Related Bursitides Affected Bursa Location of Bursa Causative Repetitive Movement Ischial Between the ischial tuberosity and gluteus maximus Prolonged sitting on hard surface Olecranon Posterior to the proximal tip of the ulna Resting point of elbow on hard surface Prepatellar Anterior (superficial) to the patella Kneeling Subacromial Between the most lateral part of the supraspinatus tendon and the acromion Overhead arm movement Nerve entrapment syndromes are typically clinical, suspected when a worker presents with abnormal sensations along the territory of certain nerves.