The relationship between the upper arm proximal circumference and arm elevation strength of the baseball player in high school.

Abstract

[Purpose] The purpose of this study was to investigate the relationship between the upper arm proximal circumference and arm elevation strength of the baseball player in high school. [Methods]One hundred and twenty-five baseball players in high school were the subjects of this study. Measurement outcomes were upper armproximal circumference, arm elevation strength, and judgment of shoulder injury. The relationship between the upper arm proximal circumference and arm elevation strength was evaluated using Pearsonʼs correlation coefficient in each groups with and without shoulder injury. [Results] There was significant positive correlation between the upper arm proximal circumference and arm elevation strength in baseball player without shoulder injury. On the other hand, there was no significant correlation between the upper arm proximal circumference and arm elevation strength in baseball player with shoulder injury. [Conclusion] These results showed the relationship between the upper arm proximalcircumference and arm elevation strength in the baseball player who are actively training their muscle strength, and if they have something injury in their shoulder, the relationship might be not found.