Examining Differences in Movement Competency in Professional Baseball Players Born in the United States and Dominican Republic.

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Dominican Republic (DR) players have different training norms, which can affect their resiliency and performance. The variance among DR players training regimens may be influenced by the degree of training incorporating fundamental movement patterns.


To examine differences in fundamental movement patterns in United States (US) versus DR born professional baseball players.


142 players (76 DR and 66 US born) that were recently selected by an MLB team.


Cross-sectional Cohort.


Professional baseball athletic training room.


Subjects completed the Functional Movement Screen (FMS) using the standardized 7 movement tests and the 3 isolated clearing tests.


The primary variables studied were composite score, left and right asymmetry, and individual movement standard scores. Two-way Chi square analysis was utilized for the statistical analysis with statistical significance being identified at p<0.05.


DR players had a larger number of 1's (7.8% vs. 3.0%) and 3's (10.5% vs. 1.5%) on the right-sided hurdle step and a greater percentage of 3's (82.8% vs. 60.6%) on right-sided shoulder mobility. US players had a larger percentage of 3's (33.3% vs. 13.4%) and a lower percentage of 1's (2.2% vs. 15.1%) on the active straight leg raise, and a greater percentage of passable scores (≥2, 99.5% vs. 65.8%) on the trunk stability push up.


This study suggests that fundamental movement competency differs between US and DR born professional baseball players. Based on these movement competency differences, a player's country of origin may be taken into account in order to create an effective training program.

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