yeah your right about the times…i would guess however, that up until 70-80m for Gardner he was running under 10 seconds equivalent…so how is it an elastic strength problem and not a speed end problem for him?
His 40m-80m shows great elasticity doesnt it?
Elasticity allows you to maintain speed as it aids reactive power. You could train speed endurance and it would help, but when you become stride rate and pawing oriented you lose the ability to store and use elastic energy proficiently. Thus you start to rely on strength more and more instead of letting momentum help. I think you’ll find the GB sprinters running with about 47-48 maybe even 49 steps per 100m and at 10.15s that’s 4.7 steps/sec that’s a giant difference to 4.4-4.5/steps per sec that 10.0x run. I just reviewed 2 Pickering tapes and he takes 48 steps in 10.21 (2008) and 10.29 (2007). Pickering shows what I think is classic british and european sprinting in running 100m races, I also think it’s typical of the way most american HS’ers are coached to since the European Community pumps out much of the published research on sprinting. When you have giants in the research community like Mero, Komi, Bosch, and Klomp putting out research, reviews, and books focusing on rate being the limiting factor in sprinting speed it’s hard to reverse such a culture.
To me a 100m should be ran as such in a descriptive since. Smaller to larger ranges of motion in acceleration, longer to shorter ground contacts, with step rate and step length both becoming larger in the first phase of acceleration, but during the second phase step rate falls slighty as step length continues to grow in other words this second phase of acceleration is transition to maxV. Once in maxV. velocity is maintained through a leveling of stride rate and length until fatigue sets in when rate again begins to climb as step length falls. With the European sprinters their stride rate seems to continue to climb and then level while step length suffers once fatigue sets in.