Gilles Cometti and Wolfgang Ritzdorf have some great information on plyometrics (reactive training for the gurus) that I have used last summer with some athletes but not with any jumper this past year as I didn’t have anyone with a good training history of proper jump work. Wolfgang argues that plyometrics should either redirect momentum (power) or minimize ground contact time (speed/stiffness). I agree.
While I follow the German approach (system) my style (coaching method) is clearly robbed from the French as they seem to apply it aesthetically (technique). With assisted jumps being brought up my question is what can be done with stiffness work to get the same results? Since both modalities are submaximal and work on minimizing ground contact time (or rate of contraction sequence) what is the loss between the two choices? If one is a 14.4 meter triple jumper how much better would the athlete be after a year of adding the overspeed jumps? Take that difference and see what the stiffness jumps would do? What would that difference be between the difference?
Case study. Let’s say Kaire Leibak from Estonia adds in the overspeed jumps, will she go from 14.43 to 14.60? What if she went 14.58 with the stiffness jumps? More research is required.