For Time:
200/150 Calorie Assault Bike
*Every 90 seconds, complete 6 step-ups to a 24-inch box

28:16 (108 step-ups; round 18)

Notes: While this is a simple workout, don't be fooled. Need to tell yourself to just keep moving during this workout and eventually you will finish. The heat and humidity were my enemy today 😈 I stopped at 150 cals instead of 200. The box step-ups will add up quickly and most rounds you'll have less than a minute on the bike.