14-12-2017, 07:30 AM
6 x 1 min fast and 1 min slow after a 30 minute w/up and 18 minute cool down.
1 minute fast @ 140 bpm Zone 3 @ 4:45 pace (both on average) - took it easy.
1 minute fast @ 140 bpm Zone 3 @ 4:45 pace (both on average) - took it easy.