Quote Originally Posted by li10up
Finally!! Information on LT which is easy to make sense of! I'm assuming you do a 10 minute warm up or so before going all out for 30 minutes? Thanks for the info.
Glad to be of help

Heh....yes. Please warm up for 10 minutes, maybe a bit more even.

When you first launch into your 30 minute time trial your HR will take a few minutes to catch up to the effort. But catch up it will. After the first 10 minutes it should be quite stable - and that number, whatever it is = LT.