Running39:31 ahr:139 max:153 shoes: New Balance 1080 (5) (9)
On the treadmill in the gym. 5 minutes warm up and then 8 * 3/1. The 3's were at 6 minute miling as that is as fast as the treadmill goes. The 1's were at 7.30 pace. Very sweaty by the end.