Biomechanical Comparison of the Fastball from Wind-up and the Fastball from Stretch in Professional Baseball Pitchers

@article{Dun2008BiomechanicalCO,
  title={Biomechanical Comparison of the Fastball from Wind-up and the Fastball from Stretch in Professional Baseball Pitchers},
  author={Shouchen Dun and David Kingsley and Glenn S. Fleisig and Jeremy Loftice and James R. Andrews},
  journal={The American Journal of Sports Medicine},
  year={2008},
  volume={36},
  pages={137 - 141}
}
Background It has long been thought by many baseball coaches and players that throwing the fastball from the stretch is more stressful to the shoulder and elbow than throwing the fastball from the wind-up. However, no research has compared the biomechanics of these 2 pitch variations. Hypothesis There are differences in shoulder and elbow kinetics, kinematic position at front-foot contact, timing, and ball velocity between the 2 pitching variations. Study Design Controlled laboratory study… 

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