If you have poor shoulder mobility, Eric and Ryan recommended this foundational move to open up and stretch your core.
- Lie on your side with your top leg bent. Rest your bent knee on a foam roller, and lay your head on a support like a pillow or thick mat.
- Reach your top hand below your ribs or straight out, so that it lays flat on top of your other hand.
- Slowly rotate your top shoulder back around to the floor, opening up your chest in the process. Pull your ribs in the direction you're rotating.
- Hold here for a few breaths, then return to the starting position. This counts as one rep.