Join Date: Aug 2005
Location: Southwest TN
Bikes: Specialized Tarmac S-Works
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
LT is heart-rate-related, you sure you don't mean power output at LT?
Power output at LT is the amount of watts you can churn out at LT, which is the higuest point of exertion that an athlete can endure w/o invoking the anaerobic energy system.
Quickest and simplest way to find out your LT is to warm-up for 10-15 minutes at 65% of MHR, then do a couple of intervals at max for 1', with 1' recovery, then go for a 30' time trial (key being starting slow and reaching a pace you can sustain for the whole duration of the interval).
After you are done, look at your average HR for the last 20' of that 30' interval, should be a very good approx. of your LT.
I'm sure others will chime in with different ways but that's what I do and seems to coincide with what a lot of coaches are doing.
If you are interested in something more power-specific, like FPT (Functional Power Treshold) then I'd recommend buying the book "Training and Racing with a Power Meter" by Hunter Allen and Andrew Coggan, excellent stuff, the next level of training a beginner / intermediate cyclist can take.