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Strength, Power, Reactivity, & Speed Discussion / Re: Hip flexors
« on: December 07, 2010, 12:56:10 pm »
Standing jumps ARE quad dominant. But in a correct sprint start, you better believe the posterior chain is engaged A LOT. I think if anything, the posterior chain is always engaged in a sprint, while the quads are only engaged in the begging more and the hamstrings start to kind of take over after you get out of the dig phase.