Tuesday, February 20, 2007

Quick Four

Ran 4.0 miles @ 7:34/mile pace.
AHR = 153
Paved roads.
Slightly hilly.
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.


olga said...

I am late, but congrats to your father and brother!!!

Kurt said...

VERY interesting data. Just think if you could trade 4 BPM for 51 seconds of pace all the time!

Do you normally start out slow and build up? Mile 1 and 3 are pretty much a full minute apart in pace.