A Core Workout for Flat Abs in 4 Simple Moves
Flat abs in four weeks
Whittle your waist with this 20-minute routine based on Kira Stokes’s super-hot Core Cuts class at the Reebok Sports Club/NY. These standing ab moves require lots of balance and stability, giving your core muscles an extra challenge.
Do this workout 3 times a week (plus 40 minutes of intense cardio 4 times a week)—and you can lose 2 inches off your midsection in just four weeks. Do all the moves once, then repeat the entire circuit 2 more times.
Standing oblique crunch
B. Crunch your torso to the left, bringing your left knee up and left elbow down toward each other as if trying to crack a nut between your ribs. Return to previous position. Do 12–15 reps, then switch sides and repeat.
Trainer tip: For maximum core challenge, tap the ball of your foot on the floor after each rep instead of putting your whole foot down.
B. With head between arms, bend to the left as far as possible, keeping hips and shoulders square. At the last moment, rotate toward floor, then rotate back to forward-facing position and return to arms overhead. Repeat on other side, moving smoothly (like a pendulum). Do 10 reps per side.
Warrior III balance crunch
B. Bend elbows to bring the weight in toward your chest. At the same time, bring left knee in toward your chest so elbows and knee meet at the midline. Return to previous position. Do 12–15 reps, then switch sides and repeat.
B. Push from your heels up and out of squat position, sweeping the weight diagonally across your body until it’s above your left shoulder. Do 15 reps; switch sides and repeat.
Trainer tip: Need help maintaining proper form? Hold a yoga block or ball between your legs.