Exercise: Hollow Body Holds, Hollow Body Rocks Do: Keep your low back pinned to the floor, engage your lats, glutes, and basically everything! Don’t: Crunch your chin to your chest. Easier: Knees bent to a tabletop position Harder: Arms overhead (biceps to ears); Hollow Body Rocks can be done after you master this position. See also: Planks, Push-ups Back to […]