Generalized Joint Hyper Mobility is not Associated with the Development of Overuse Arm Injuries in Adolescent Baseball Pitchers

Abstract

Objectives:Generalized joint hypermobility is theorized as a risk factor for joint injury in sport. However, there are no studies demonstrating generalized joint hypermobility and upper extremity overuse injury. Therefore the purpose of this study was to prospectively examine generalized joint hypermobility using the Beighton Scale and upper extremity overuse injuries in high school baseball pitchers.Methods:Healthy high school baseball pitchers (n=167) who were participating in all team activities were included in the study. The players averaged 15.8 ± 1.2 y.o., weighed 72.3 ± 13.0 kg, and measured 165.0 ± 43.8 cm in height. They were assessed during the preseason for joint hypermobility using the 9-point Beighton scale. From the first official day of practice until the last regular or postseason competition, all athletes who reported pain or injury to their coach were referred to the certified athletic trainer (AT) at their school for evaluation and classification of each potential injury...