Comparative Study
Journal Article
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A Biomechanical Comparison of the Long Snap in Football Between High School and University Football Players.

Limited previous research was located that examined the technique of the long snap in football. The purpose of the study was to compare the joint movements, joint velocities, and body positions used to perform fast and accurate long snaps in high school (HS) and university (UNI) athletes. Ten HS and 10 UNI subjects were recruited for filming, each performing 10 snaps at a target with the fastest and most accurate trial being selected for subject analysis. Eighty-three variables were measured using Dartfish Team Pro 4.5.2 video analysis software, with statistical analysis performed using Microsoft Excel and SPSS 16.0. Several significant comparisons to long snapping technique between groups were noted during analysis; however, the body position and movement variables at release showed the greatest number of significant differences. The UNI athletes demonstrated significantly higher release velocity and left elbow extension velocity, with significantly lower release height and release angle than the HS group. Total snap time (release time + total flight time) was determined to have the strongest correlation to release velocity for the HS group (r = -0.915) and UNI group (r = -0.918). The study suggests HS long snappers may benefit from less elbow flexion and more knee flexion in the backswing (set position) to increase release velocity. University long snappers may benefit from increased left elbow extension range of motion during force production and decreased shoulder flexion at critical instant to increase long snap release velocity.

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