Originally Posted by
chiggy
OK. Agree that max leg strength was a bad term to use. I was trying to be generic since I'm very new to cycling. However what you're saying is not what I intended it to mean.
So lets provide an example with something I'm familiar with. In running, speed is not determined by peak force to the ground, but how quickly a force can be applied. You want you ground contact time (ct) to be small, and the only way we can apply a large force is through a longer ct. Now when you do plyometrics like bounding, bunny hops, skipping for height, etc. the force is greatly increased but ct greatly increases, turnover decreases (and speed along with it obviously). Sounds like it fits with what we are talking about.
While the force doing bounding is not maximal at all, and not as large as say doing squats, it still recruits a good bit more muscle fibers than even full out sprinting and does it in a more sport specific way than weights. This trains you CNS and muscles to pull from greater pool of fibers. Now obviously once you have gained access to those fibers they need to be trained for endurance. The idea is that with a greater pool of fibers it is more likely that when the kick starts you will be able to call on more un-fatigued fibers than the guy next to you, and reach a larger percent of your fresh maximum speed. For sprinting it is useful for acceleration phase when ct is lower but force is higher. It has not been shown to increase max speed.
Seems like it would be useful for accelerating to cover a break, a finish sprint, or hills, whether the force applied is maximal or not. The idea may or may not be applicable to biking, but that was my thoughts.
Interesting comparison, at first glance it does look like bounding is to running as low cadence/high torque drills would be to cycling. I think there is an important difference, with running it is not just about the force that propels you forward. For that forward force it seems like the same principles apply as for cycling, long term power is generated from high cadence/low torque. The other component of running is the jumping up and down, in order to be fast you want to increase your stride and that comes from jumping higher in the air, I think that this is where bounding helps. This up and down motion has much more a characteristic of short explosive high force burst. It needs to be applied at every step so increasing the cadence does not help to jump higher, you really need to apply more force.
Needles to say that cycling does not have this component.