AI Article Synopsis
- Glenohumeral internal rotation deficit (GIRD) is a common shoulder issue in throwing athletes, but its occurrence in little league pitchers has not been studied until now.
- This research measured the shoulder range of motion and pitching mechanics in 25 male little league pitchers to investigate the presence of GIRD.
- The study found that 40% of the pitchers had GIRD, suggesting that this condition can develop in young athletes before the typical increase in external rotation observed in adult throwers.
Article Abstract
Glenohumeral internal rotation deficit (GIRD) is a significant shoulder problem for throwing athletes. GIRD, however, has not been reported in little league pitchers. The purpose of this study was to investigate GIRD in little leaguers. The range of motion of both shoulders was measured in 25 male little league pitchers. All pitchers underwent motion analyses of their pitching to evaluate shoulder kinematics. GIRD was found in 10 of the 25 pitchers. External rotation in the dominant arm in the GIRD group was not significantly different compared to the contralateral or dominant arm in the non-GIRD group. This biomechanical study showed that the GIRD group had increased external rotation while throwing compared to the non-GIRD group. These findings indicate that GIRD can occur prior to development of the increased external rotation in the dominant arm seen in adult throwers.
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| http://dx.doi.org/10.1016/j.jse.2008.02.013 | DOI Listing |
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