There are several common injuries that can occur in javelin throwers, including injuries to the elbow, shoulder, and back. Key factors that can help prevent these injuries are having proper throwing technique, sufficient strength and conditioning of the whole body, adequate flexibility and joint range of motion, and supervision of athletes. Common elbow injuries include "thrower's elbow" which can result from improper technique producing excess strain on the ligaments. Shoulder injuries often involve displacement of the humeral head and can be addressed through strengthening exercises. Back injuries typically involve muscle strains or stress fractures from the alternating flexion and extension demands on the lumbar spine during the throw.