Abstract
We had medical checks of baseball injuries of the shoulder joint of junior and senior high school students in Kochi Prefecture during 1997and 2002.116junior high school baseball players and 76 high school players were investigated by means of a questionnaire and physical examination in 1997.105junior high school and 95 senior high school baseball players in 1998.33 junior high school and 87 high school baseball players in 1999.84 junior high school and 85 high school baseball players in 2000.46 junior high school and 88 high school baseball players in 2001.48junior high school and 94 high school players in 2002. Almost 30% of the junior high school and high school baseball players showed a painful condition and overused states of their shoulder joints in 1997and 1998. However, the ratio of the painful condition of the baseball players decreased every year. Our results suggest that an early search for shoulder injuries in young baseball players is useful for treating throwing injuries of the shoulder joint.
