It'll target that area strongly, in addition to giving you some excellent core work (the one - arm pressing movement puts torque in the through deep muscles of the core). (fitstep.com)
First, the uneven tension on the body forces the stabilizing muscles of the core to work overtime. (hardgainermusclebuilding.com)
What's more is that the powerful muscles of the core not only protect your inner organs, but they also give a supporting hug of protection to your baby. (ashtangayoga.info)