1. Isokinetic Concentric Quadriceps and Hamstring Strength Variables From the NFL Scouting Combine Are Not Predictive of Hamstring Injury in First-Year Professional Football Players. (July 2013) Authors: Zvijac, John E.; Toriscelli, Todd A.; Merrick, Shannon; Kiebzak, Gary M. Journal: American journal of sports medicine Issue: Volume 41:Number 7(2013) Page Start: 1511 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗