Complete as many rounds as possible in 20 minutes of:
10 strict knees-to-elbows
3 wall walks
Scaling
This workout will quickly become tedious and uncomfortable. Each set of movements should be challenging but doable, forcing you to manage muscular failure in order to maintain a decent pace.
Intermediate Option
Complete as many rounds as possible in 20 minutes of:
7 strict knees-to-elbows
2 wall walks
Beginner Option
Complete as many rounds as possible in 15minutes of:
10 hanging knee-raises
50-ft. bear crawl