Ran 4.0 miles @ 7:34/mile pace.
AHR = 153
Mid teens, overcast.
Short run, and by the time it was over, I was just beginning to feel warmed up. Had planned on doing between six and seven miles, but the need for a bathroom break and also cold toes from wearing the wrong socks led me to cutting it short.
I'm continuing to get familiar with the Forerunner 305. Here's a breakdown of the splits and the data from each one:
Mile 1: 8:06, AHR 142
Mile 2: 7:55, AHR 154
Mile 3: 7:04, AHR 160
Mile 4: 7:13, AHR 162
This was an out and back route, so miles one and four were along the same stretch and had the biggest changes in elevation. But what I found interesting is the data for miles two and three, which were also along the same flat stretch. Though I picked up the pace in mile three by :51 a mile, my heart rate only increased six BPM. Cool.