4 rounds (40 sec work/20 sec rest)
Step-Ups
Push-Ups
Lunges
Bicycle Crunches
Body Weight Squats
Rest 5 minutes, then:
4 rounds (40 sec work/20 sec rest)
Reverse Lunges
Dips
Russian Twists
Mountain Climbers
4 rounds (40 sec work/20 sec rest)
Step-Ups
Push-Ups
Lunges
Bicycle Crunches
Body Weight Squats
Rest 5 minutes, then:
4 rounds (40 sec work/20 sec rest)
Reverse Lunges
Dips
Russian Twists
Mountain Climbers