ABSTRACT
In baseball pitching, it has been established that sidearm delivery tends to cause injury to a pitcher's throwing arm. Albright et al. (1978) investigated the relationship between pitching style and symptom of throwing injuries. They found that pitchers employing a sidearm pitching style had a higher incidence of more severe symptoms in the elbow joint than those who were overhand and threequarter-hand pitchers. However, the reason for this has not been elucidated.
