Originally Posted by LT Intolerant
Insofar as "pushing hard enough is concerned" per my other post (in response to NoRacer's comments) IMO and others opinions you don't need to be "redlining" to see training adaptation in various energy systems.
gene r
True enough unless you are working on VO2Max or lactate tolerance. And, if you don't do it for VO2Max or lactate tolerance, then you still may reap rewards, but the stimulus for adaptation won't be as great.