Workout Flow
You have 4 minutes to complete as many rounds and reps as possible of the following movements.

1 Round is:
40 Mountain Climber Twists (total)
20 Sit Ups

You will rest for 3:00 and then complete this again.

Demo Videos

Mountain Climber Twists - opposite knee to opposite elbow
Sit Ups

Modifications

Mountain Climber with Twist ---> Elevated Mountain Climber
Sit Ups ---> Quarter Sit Ups