Part I: The snow forced me inside to the treadmill (8 in. of snow + 27F), so I started with a barefoot warm-up (25 minutes) then moved into a tempo run (Part II). I use to run in this stuff but not anymore . . . I just refuse to battle mother nature anymore . . . I'm fine with the warm indoors and the treadmill . . .
Part II: After the barefoot treadmill warm-up, I decided to knock off a 15 min. tempo run at 10k pace (6:15 pace). It felt great and I decided to check my heart rate at this pace (it was 156).