These moves, designed by Ashley Ntansah, personal-training manager at Club H Fitness in New York City, target your entire abdominal wall, especially the transverse abdominis—the midsection muscle that pulls in your belly like a corset. And this sexy abs workout does more than just firm your core: You'll feel it (and see results!) in your shoulders, legs, and glutes as well.
Complete these moves in order, resting for 30 seconds between exercises. Repeat the circuit so you do two sets of each move. Do the workout two or three times a week, on nonconsecutive days, and you won't need your Spanx this season
Exercise 1: PLANK WITH GLUTE SQUEEZE
Exercise 2: ROTATING SUPERWOMAN
Exercise 3: ROCK 'N' RAISE