Thank you everyone! Pele: First of all, the carriage is not supposed to be moving, so perhaps that is where the confusion lies. The movement of the carriage will also depend on which manufacturer you use and the setting it's on. Beyond that, I included the hand stand jumps for several reasons: 1-newer research has demonstrated the elastic rebound properties of fascia, our body's connective tissue, and proposes that we can train and leverage the benefits of this elasticity (for greater movement and metabolic efficiency) through bouncing motions. 2- We'd been integrating the feet as well prior to this so I wanted to add in additional strenghthening and load to the ankles in a manner the body might not be used to, yet another manner of stimulating fascia remodeling 3- after all the upper body training and integration prior to then in the workout, I wanted to create a neurological and balance challenge taking the shoulder stabilizing work to the next level Hope that helps!