|  Subject: RE: What I think I've lernedPennState - 2010-05-01  8:37 PM  ^^^  Majority of run mileage should be EASY pace. A pace that you are not working too hard for. Generally Z2 (using the Friel system). Question - as a relatively new runner  (about 8 months in ), I still have trouble running at a low heart rate.  I've pretty much found that as long as I can keep my HR at 160 or below  (I'm 37 btw ) I can basically run on and on  (to a limit of course ).  If I go above 160 I fatigue and need to take walk breaks.  One 10k I went out too fast and hit 171 and about a mile in had to walk to bring it down because even slowing my run didn't help.  Anyways, back to my point, last night I went to run 3 miles with the clear intention of running as slow as possible to keep my HR down, and even at what I felt was a very slow pace, I still averaged 160 for the 30 mins.  I can't seem to run for any amount of time below say 156/157. How do I get down to a zone 2 run, which I figure to be about 138-143, or so.  Reading the Friel system, you have to be able to maintain 30 mins to calc the LTHR, which I figure about 161.  |