Ladder: 2 – 4 – 6 – 8 – 10 – 12.
Complete 2 of each exercise, then 4 of each, then 8 of each, and so on until you reach 12.
400 meter run (or 1 min sprint on spot) + 40 burpees
300 meter run (or 45 sec sprint on spot) + 30 burpees
200 meter run (or 30 sec sprint on spot) + 20 burpees
100 meter run (or 15 sec sprint on spot) + 10 burpees