3 Levels of 4X4 Training
Bouldering 4x4s are a great way to build power endurance, and to condition athletes to fight pump and fatigue. The following 3 levels include the traditional approach, plus two other adaptations that take this protocol to the next level! Enjoy.
![3 Levels of 4X4 Training](/content/images/size/w2000/2023/12/4x4.jpg)