Day 19

Aerobic Strength Endurance

Warm Up:

5 Minutes in Zone 2

+

3 Rounds:

30s. Accelerating from Zone 1 into Zone 4

30s. @Easy Effort in Zone 1

+

5 Rounds:

1 Minute Hill Run @Hard Effort [Low Zone 5]

2 Minutes @Easy Effort [Zone 1 -2]

+

Cool Down:

5 Minutes in Zone 2-3