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Relationships and Reliability Between a Drive Block Test and Traditional Football Performance Tests in High School Offensive Line Players.

Abstract：

:Collins, KS, Coburn, JW, Galpin, AJ, and Lockie, RG. Relationships and reliability between a drive block test and traditional football performance tests in high school offensive line players. J Strength Cond Res 32(12): 3432-3441, 2018-The offensive line (OL) is a specialized football position responsible for blocking tasks. Little research exists on OL-specific movements and relationships to performance tests in high school players. This study investigated the reliability of the average and peak velocity (avgV, peakV) and momentum (avgM, peakM) of a drive block test (DBT) in 15 high school OL and relationships to performance tests. A linear position transducer attached to the OL waist measured the DBT from a 3-point stance into a blocking pad. Linear speed was measured by a 36.58-m sprint. Change-of-direction (COD) ability was measured by the pro-agility shuttle (first COD, second COD, and total time) and COD deficit from the first (COD deficit 1) and second COD (COD deficit 2) of the pro-agility shuttle. Vertical jump, standing broad jump (SBJ), and 1 repetition maximum (1RM) back squat were also measured. Pearson's correlations (p < 0.05) investigated relationships between the DBT and performance tests. Intraclass correlation coefficients (ICCs), dependent t-tests, and coefficient of variation (CV) assessed DBT reliability. Drive block test variables were reliable (ICC > 0.90; CV = 6.46-8.29%) and correlated with the second pro-agility shuttle COD and COD deficit 2 (r = -0.515 to -0.721). One repetition maximum back squat correlated with avgM and peakM (r = 0.551-0.582); SBJ correlated with avgV and peakV (r = 0.557-0.571). The pro-agility shuttle splits, COD deficit, and SBJ may provide useful information about DBT qualities important for high school OL. It is recommended high school OL training focus on strength, COD performance, and jumping ability to aid drive block performance.

journal_name

J Strength Cond Res

journal_title

Journal of strength and conditioning research

authors

Collins KS,Coburn JW,Galpin AJ,Lockie RG

doi

10.1519/JSC.0000000000002757

subject

Has Abstract

pub_date

2018-12-01 00:00:00

pages

3423-3432

issue

eissn

1064-8011

issn

1533-4287

journal_volume

pub_type

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Relationships and Reliability Between a Drive Block Test and Traditional Football Performance Tests in High School Offensive Line Players.