My original intent was to try and keep a HR of about 155 during todays run. With it being 5 miles, the 5-7 minute buildup to exercise HR affects the end result a bit less than yesterdays 3 mile run. The reason I wanted to go with 155 was that when I have a target HR of 150 or so, my pace ends up being in the 9:30 to 10:30 per mile range. I was curious to see whether 155 would put me right around 9:00 per mile.
Unfortunately - today - not so much. Until the last mile and a half or so, I did a pretty good job of keeping the rate between 155-160, and I could tell that in order for me to keep it right around 155, I'd definately be going slower the 9:00 per mile. So the latter part of the run I decided to make it a tempo run, like yesterday, except that I would maintain the speed I was doing - which I estimated to be around 9:30-9:40 or so. I decided to do this regardless of the HR. Partly because I just felt like doing a tempo run, and partly because it was getting dark enough out that I was having trouble seeing the display ont he HR monitor (no backlight).
Total time - 49:42
Total distance - 5.25 miles
Avg HR - 157
So while the average HR for the entire run was in the proper range, it was once again a case where the first portion of the run is on the low side, and the last part is on the high side. And the overall pace was 9:28 - right around where I suspected it might be
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