When we spoke to Anna Kaiser, the mastermind who sculpted Shakira's body (among those of many other celebs), we wanted to know two things: how to get a stronger, more toned booty and the best way to build rockin' ab muscles. She shared three of her best booty exercises that she uses with her A-list clientele, in addition to her all-time favorite workout move: this Pilates ball crunch for abs. Here's how to do it:
"This move really isolates your core," said Kaiser. It allows for a deeper burn and more effective workout. The support from the ball (which she recommends using in a "half deflated" state) protects your spine from the hard floor, in addition to protecting your lower back. So not only is it a better workout, but it's a safer one, too.