Dr. Ben Moxness | Jump Training & Athletic Development on Instagram: "Two types of jumpers, what are the advantages of each? Concentric dominant jumpers attempt to maximize their impulse by prolonging the time spent on the ground applying force. Usually these athletes will have deep knee bends during CMJs and have slower approach speeds and amortizations during approach jumps. Typically these athletes have not quite developed the eccentric RFD / active muscle stiffness necessary to stretch their

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