SPEED – TRAINING METHODS


1 ARTICLE + 2 GRAPHICS – YANN LeMEUR | UNIVERSITY OF WASHINGTON OLY STRENGTH


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HOW IMPORTANT IS MAXIMUM VELOCITY FOR THE 40 – 2017


Clark KP1Rieger RHBruno RFStearne DJ.
– This investigation analyzed the sprint velocity profiles for athletes who completed the 40-yard (36.6m) dash at the 2016 NFL Combine
PURPOSE
– Evaluate the relationship between maximum velocity and sprint performance, and to compare acceleration patterns for fast and slow athletes
METHODS
– Using freely available online sources, data were collected for body mass and sprint performance (36.6m time with split intervals at 9.1 and 18.3m)
– For each athlete, split times were utilized to generate modeled curves of distance vs. time, velocity vs. time, and velocity vs. distance using a mono-exponential equation
– Model parameters were used to quantify acceleration patterns as the ratio of maximum velocity to maximum acceleration (vmax / amax, or τ)
– Linear regression was used to evaluate the relationship between maximum velocity and sprint performance for the entire sample
– Additionally, athletes were categorized into fast and slow groups based on maximum velocity, with independent t-tests and effect size statistics used to evaluate between-group differences in sprint performance and acceleration patterns
RESULTS
– Maximum velocity was strongly correlated with sprint performance across 9.1m, 18.3m, and 36.6m (r of 0.72, 0.83, and 0.94, respectively)
– However, both fast and slow groups accelerated in a similar pattern relative to maximum velocity (τ = 0.768 ± 0.068s for the fast group and τ = 0.773 ± 0.070s for the slow group)
CONCLUSION
– Maximum velocity is of critical importance to 36.6m time, and inclusion of more maximum velocity training may be warranted for athletes preparing for the NFL Combine


 

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