Clark, DA, Sabick, MB, Pfeiffer, RP, Kuhlman, SM, Knigge, NA, and Shea, KG. 2009. Influence of towing force magnitude on the kinematics of supramaximal sprinting. J Strength Cond Res Jul;23(4):1162-8.The ideal “training zone” for supra-maximal towing may vary slightly from one athlete to another. The amount of force applied must be enough to increase stride rate, decrease …