Raptor <[email hidden]> wrote:
:> Of course you need a base with lots of continuous (and possibly interval, if you feel like it)
:> training below your LT - essentially, in all the zones below your LT - before it makes sense to
:> start serious anaerobic training.
: I'm missing something. Isn't LTHR the hardest level that a person can maintain "indefinitely?" Why
: train intervals at <LTHR? Why can't any couch potato work at just below their LTHR as long as
: their aerobic supply lasts?
Well, LT is a level you can maintain... I'm not the best person to answer, consult exercise
physiology books. I'd think aerobic endurance figures in too, a couch potato wouldn't last long
because of untrained aerobic capacity.
You can also think of it this way: energy is always produced aerobically and anaerobically. Though
it is a lot more complicated than that, there are different energy systems, and dunno what else goes
into performance and endurance physiology. As you increase your pace from an easy aerobic one, your
body increases production of lactic acid and utilization of anaerobic mechanisms. Concentration of
lactic acid increases, as your body can't utilize all of it, and there are some counterproductive
byproducts. Roughly, these metabolic products increase exponentially, and eventually you reach a
limit where your body can't scale up to more strenous pace anymore.
When you look at this process, it's rather gradual, and there is no clear breakpoint where you can
point at. LT is a conceptual abstraction, which helps to make sense of your training :-)
For more info on energy systems, take a look at brianmac.demon.co.ukenergy.htmOpen ↗
To return to the original topic, you have to train the less effective, more efficient, more aerobic
energy and metabolic systems first, as after that anaerobic training can be more effective.
--
Risto Varanka | helsinki.fi~rvarankaOpen ↗ varis at no spam please iki fi