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LETTER
I G Stiell, A Laupacis, G A Wells
No abstract text is available yet for this article.
November 23, 2000: New England Journal of Medicine
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RANDOMIZED CONTROLLED TRIAL
Julianne D Schmidt, Kevin M Guskiewicz, J Troy Blackburn, Jason P Mihalik, Gunter P Siegmund, Stephen W Marshall
BACKGROUND: An athlete is thought to reduce head acceleration after impact by contracting the cervical musculature, which increases the effective mass of the head. PURPOSE: To compare the odds of sustaining higher magnitude in-season head impacts between athletes with higher and lower preseason performance on cervical muscle characteristics. STUDY DESIGN: Cohort study; Level of evidence, 2. METHODS: Forty-nine high school and collegiate American football players completed a preseason cervical testing protocol that included measures of cervical isometric strength, muscle size, and response to cervical perturbation...
September 2014: American Journal of Sports Medicine
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