Hey everyone, I apologize for the long and potentially confusing post, I just had a handful of questions about things I am trying to research, and hoping to get anyone's input. I am trying to research training the Central Nervous System and how the CNS reacts under different loads (%RM) different speeds, as well as different rep ranges. One of the prior NSCA Journals went into discussing training various loads for jump height, but the study seemed rather inconclusive. What I have read in theory was if squatting heavier weights (ie <85%) and taking greater than between 3 - 5 seconds, then in turn its going to slow you down (CNS) or decrease jump height/speed, because of too much time under tension. I am just trying to figure out how that applies/if its true, because the other side of that someone had said is if are "attempting" to move the weight quickly even if your not the CNS will still react to greater speed. How does the timing of each rep or each set effect the CNS as well as how do you time exercises
I am also trying to learn a little bit more about the Creatine Phosphate system, and how long it lasts during various exercises (weight training vs running/sprinting) before the Glycolitic and oxidative system take over? And how long is it before the CP system is fully replenished set to set.
For speed work/plyos/Force Absorption training how much more weight or force will be absorbed in the muscles and joints upon landing a depth jump for example or sprint? The Essentials of Strength have a calculation I don't know what it is. As Don Chu mentions in "Jumping into Plyometrics" if your landing and eccentrically loading muscles or CNS with added weight or force, your body will be forced to create that much more force concentrically.
Last thing I am trying to learn about is about sprinting technique and utilizing assisted and resisted sprinting, I haven't done it before and I'm not sure how to, if anyone could shed some light or point me in the direction of a book about it, it would be helpful. Thanks everyone.