7:48's

Did my 8's this morning. Tom begged off due to heart rate issues. I ran 5 x 800 (2 minute rest) at a 7:48 pace. I used 168-172 as my AT range and right now I think it's right. I had to push early on to get up in zone but had to back off later to keep from going too high. The good news was that my recovery was excellent. My HR dropped back under 70% in a minute or less. Also, and this was the surprise, my reps got slightly faster as I progressed through them. The cool weather and two minute rest was probably the reason.