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coachduke
RE: Mr. Renato Canova: Could You Please Answer a Question About Effective Ways to Improve the Lactate Threshold?
This is not very fruitful advice, as the long run is cause for many aerobic adaptations. Increased mitonchondrial density, an increased response time with the release of various catacholamines and hormones (epinephrin, norepinephrine, cortisol, human growth hormone), increased citrate levels (inhibits Phosphofructokinase, an enzyme for CHO utilization, thus glycogen sparing), and maybe a conversion of sort of type 1 to type 2 muscle fibers all play a role in performance. As for the muscle fiber idea that was alluded to by Tinman (I think). Peter Snell's idea was that a long run that is intense enough to deplete glycogen stores will then only begin to recruit type 2 fibers and may begin to train them as oxidative fibers. The key concept here is that the muscles need to be fatigued by a means of glycogen depletion. All and all the long run is a vital component to long distance success! Great thread!

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