1 Warm-up: Treadmill with a slight incline. Fast walk (3 min).
Work period (18 min):
2 min of maximum effort
1 min fast walk / light jogging
3 min of maximum effort
1 min fast walk / light jogging 4 min of maximum effort
1 min fast walk / light jogging 3 min of maximum effort
1 min fast walk / light jogging 2 min of maximum effort