Woolsey, C. L., Jacobson, B. H., & Boolani, A. (2014). The relationship between isometric peak knee strength to peak drive-block power in Division-I football lineman. Medicine & Science in Sports & Exercise, 46(5), Supplement abstract number 249.

This study investigated the relationship of the drive-block peak power and peak isometric power of the knee flexors and extensors in Division I college linemen (N = 18). Ss performed 10 fire-outs from a three-point football stance into a stationary blocking dummy while assessments of power were recorded. Power (Watts) was recorded using a Tendo® Power Analyzer and was correlated with each S's peak toque as recorded by a Biodex System 4.

Correlations of the variables yielded significant positive associations between drive-block power and peak torque for knee extension, but not for knee flexion.

Implication. Training protocols inclusive of exercises to strengthen the lower extremities (knee extension) may positively relate to peak isometric torque and to the drive-block as used in offensive line play. It is suggested that players include the squat in year-long training protocols in order to maximize leg strength for drive-blocking and thus, playing efficiency.

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