Double-under for 2 minutes
Sit-up for 2 minutes
Double-under for 90 seconds
Sit-up for 90 seconds
Double-under for 1-minute
Sit-up for 1-minute
Double-under for 30 seconds
Sit-up for 30 seconds
Complete 32 intervals of 20 seconds of work followed by ten seconds of rest where the first 8 intervals are pull-ups, the second 8 are push-ups, the third 8 intervals are sit-ups, and finally, the last 8 intervals are squats. There is no rest between exercises.