Here is a core exercise that also trains the posterior oblique sling. The posterior oblique sling is the powerhouse behind most unilateral movements in reality. Like many other exercises that encompass rotation and contralateral reciprocation, this is one chain of integrated musculature that is rarely ever conditioned effectively. If you are new to this type of training, be sure to learn about the concept of structural integration first to ensure we don’t create imbalances that will lead you to pain or injury later!