22-09-2017, 02:37 PM
I need to further adapt to my new paces so instead of a 4k time trial I did a 20 min threshold/tempo run on a hilly loop with some easy running before and after. It went like this:
20 min @ 4.36/km. Avg. HR: 158. Max HR: 167.
20 min @ 4.36/km. Avg. HR: 158. Max HR: 167.