AB Pyramid Intervals
Minute 1: 10 sec sprint, 50 seconds rest assault-bike
Minute 2: 20 sec sprint, 40 seconds rest
Minute 3: 30 sec sprint, 30 seconds rest
Minutes 4: 40 sec sprint, 20 seconds rest
Minute 5: 50 sec sprint, 10 seconds rest
Minute 6: 40 sec sprint, 20 seconds rest
Minute 7: 30 sec sprint, 30 seconds rest
Minute 8: 20 sec sprint, 40 seconds rest
Minute 9: 10 sec sprint, 50 seconds rest
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