Isometric Cervical Muscle Strength Does Not Affect Head Impact Kinematics in High School Boys’ Lacrosse

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Patricia Kelshaw George Mason University

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Nelson Cortes George Mason University

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Amanda Caswell George Mason University

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Shane V. Caswell George Mason University

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A growing topic in research is that of cervical strength to potentially mitigate head impact kinematics (HIK) and concussion risk. The purpose of this research was two-fold: (a) Assess the effects of isometric cervical muscle strength (ICMS) on HIK in high school boys’ lacrosse, and (b) investigate the relationship between cervical anthropometrics and ICMS, to create greater feasibility to approximate ICMS. All participants wore accelerometers during the season, and had their ICMS measured. No significant differences existed among ICMS classifications and HIK measures (p > .05). Cervical circumference showed a positive, moderately strong relationship with ICMS in extension (r = .63, p = .02). Our findings do not support previous research that has identified ICMS as a modifiable risk factor for mitigating HIK.

Patricia Kelshaw is a doctoral research assistant alongside Drs. Caswell and Cortes at George Mason University, Manassas, VA. Nelson Cortes is an associate professor in the College of Education and Human Development, George Mason University, Manassas, VA. Amanda Caswell is the program director and associate professor for the Athletic Training Education Program (ATEP) at George Mason University, Manassas, VA. Shane V. Caswell is the director of the Sports Medicine Assessment, Research & Testing (SMART) Laboratory, and a professor in the Division of Health and Human Performance, George Mason University, Manassas, VA. All authors are with the SMART Laboratory at George Mason University, Manassas, VA.

Address author correspondence to Nelson Cortes at ncortes@gmu.edu.
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