3 Rounds of “Threshold 642”
600m easy run
200m hard run
400m easy run
200m hard run
200m easy run
200m hard run
200m Walk between sets
2km Per Round
6km Total
Notes
Easy Run – This should be a run at a rate of perceived exertion of 6-7 out of 10 you should be breathing easy throughout.
Hard Run – This should be a run at a rate of perceived exertion of 9 out of 10 you should be working on getting you 200 time as low as possible whilst being able to hold thought each set.
