Valeriia completes another solid day at altitude, not every session needs to be ALL OUT to get the stimulus that you're looking for! We also dive into the topic of aerobic development in developmental athletes.
Session: Set 1 3000m @ Threshold 1
Set 2 2000m @ Threshold 1
Set 3 1000m/1000m @ Threshold 2 500m jog
Set 4 400/400 @ smooth/fast