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(9) FUNCTIONAL MOVEMENT PATTERNS AND PERCEIVED MOBILITY IN COLLEGIATE LACROSSE ATHLETES


Authors:

Christopher J. Rosenborough, MS, ATC – Athletic Trainer, University of Lynchburg

Sean M. Collins – Associate Professor, University of Lynchburg

Edward R. Smith – University of Lynchburg

Thomas G. Bowman

Abstract:

The stress on the body from sport participation may play a role in an athlete’s ability to function throughout a season. PURPOSE: To examine the effects of a non-traditional lacrosse fall season on functional movement patterns for both males and females, while secondarily observing how collegiate lacrosse athletes perceived mobility. METHODS: Fifty males (age=19.38±1.24 years, hheight=182.63±6.16 cm, mass=82.37±8.46 kg) and 22 females (age=19.68±1.17 years, hheight=165.10±6.88 cm, mass=64.09±8.72 kg) who participated on National Collegiate Athletic Association Division III lacrosse teams volunteered to participate. The independent variable was time (pre, post). Pre- and post-test mobility scores were measured 2 weeks before and after the season, respectively. Main outcome measures included functional mobility and perceived mobility scores. We measured perceived mobility postseason using functional movements by asking participants to grade themselves on each movement. Data was analyzed using a 1-way repeated measure ANOVA for each sex separately. A chi-square analysis was used to determine the change in asymmetry frequency. We set an alpha value of 0.05 for significance. RESULTS: Time significantly increased female mobility scores from preseason (mean=15.27±2.25) to postseason (mean=16.05±1.50; F1,21=4.46, P=0.05, ƞ2=0.18). However, males’ total mobility scores did not significantly differ from preseason (mean=15.60±1.86) to postseason (mean=15.64±1.71; F1,49=0.03, P=0.87, ƞ2=0.001, 1-β=0.05). There was not a significant difference in the number of male (preseason=8, postseason=4; 𝜒21=2.38, P=0.12) or female participants (preseason=5, postseason=1; 𝜒21=2.15, P=0.14) that recorded a total mobility score below the injury risk cut off of 14 at the end of the season. Time significantly increased the number of male athletes with an asymmetry on the hurdle step (preseason N=2, postseason N=9; 𝜒21=25.52, P< 0.001), inline lunge (preseason N=10, postseason N=20; 𝜒21=12.50, P< 0.001) and shoulder mobility (preseason N=4, postseason N=21; 𝜒21=78.53, P< 0.001) while male active straight leg raise asymmetries decreased (preseason N=26, postseason N=8; 𝜒21=25.96, P< 0.001). Significant differences in male measured score and perceived mobility scores were found in all movements except for right shoulder mobility (P=0.82) and right active straight leg raise (P=0.05). CONCLUSIONS: An 8-week fall lacrosse season has significant effects on functional movement in various areas. These changes may lead to alterations in the kinetic chain resulting in joint hypomobility, hypermobility and compensatory patterns. PRACTICAL APPLICATIONS: The results of this study indicate that mobility changes in both male and female lacrosse athletes over the course of a season in different areas. Sports medicine and strength and conditioning professionals should be aware of male athletes overestimating self-reported mobility and therefore not addressing deficits independently.

 

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