By Kim Peiffer
Updated Oct 30, 2014 @ 6:55 pm
Kim Kardashian
Credit: Instagram/KimKardashian

The waist training trend (aka wearing a corset to help shrink your middle) seems to be all the rage in Hollywood, as recently demonstrated by Kim Kardashian on Instagram (above). But instead of squeezing your ribs into an apparatus that surely can't be good for you, we turned to trainer-to-the-stars AKT InMotion's Anna Kaiser (who's responsible for whipping Kelly Ripa, Sarah Jessica Parker, and other famous faces into shape), for the most effective waist whittling moves around, the good-old fashioned way. "It’s the most ridiculous thing," says Kaiser of the corset trend. "First of all, it doesn’t look very good. And second of all, they stopped wearing corsets hundreds of years ago because of the damage they do to your body, rib cages and hips and all of that!"

Instead, Kaiser says you can achieve that fab physique with a few super effective moves to strengthen your core, therefore you’re not relying on a piece of fabric or elastic to do that for you. Based on Kaiser's flawless figure and her clients' fab physiques, we're sold!

Try out these moves (complete 10 reps of each exercise), courtesy of Kaiser, and you'll be feeling trim and toned in no time (your ribs will thank you later!):


In plank, jump both legs toward your left hand, then jump toward your right hand. That’s one rep. Repeat jumping side to side, trying to lift your hips into the air in between landings.


Start by placing a swiss ball (stability ball) between your legs and lay on your back (legs extended towards ceiling). With your hands out in a T position and keeping your legs straight, lower your legs toward the floor (about halfway), rotate the ball to the right, rotate back to center, and lift the legs back to the starting position. Repeat on the left.


Start by stabilizing in a plank position, with your shins on the swiss ball. Press down into the ball with your shins as you lift your hips toward the ceiling and bend your knees toward your chest. Aim your knees toward your left shoulder (twisting in your mid section) as you finish bringing your knees toward you (feeling your obliques kick in!). Then return to plank. Repeat on the right. That's one rep.


Start in a plank position on the floor. Tap your right toe out to the side at a 45deg angle (keeping your right hip parallel to the floor). Then bend your knee and tap your right toe as close to your right shoulder as possible. Return to plank. Repeat on the left.


Lay on your back, arms extended straight overhead on the floor by you. As you come all the way up to sit on your booty, lift your right knee toward your chest and twist toward the leg as you come into the seated position (arms come out to the side, spine straight). Lower back down. Repeat on the left.


Position yourself in a side plank, supporting your body with your left arm. Anchor your right foot on the floor, bend your left leg, and hold your left foot to your right knee (in passe!). Maintaining that position, try to dip your left hip to tap the floor and raise back up again.