These 3 Moves Will Make You Look Flat-Bellied from Every Angle

Reverse Oblique Crunch

Lie on the floor with your legs up and slightly bent, hands at your sides with palms faced down (A). Brace your torso by contracting as if someone were going to punch you in the tummy. Lift your hips up and twist them to the right slightly so as to contract through the right side of your torso. Hold for three seconds, then release down to the start position, keeping your legs in the air. That’s one rep. Repeat the movement on the other side. That's two reps. Continue alternating sides, and do a total of 20 reps. 

Forearm Side Plank

Sit on your left hip and place your left elbow directly under your left shoulder. Knees should be straight with a slight bend, and feet should be stacked on top of each other and flexed so that there is a 90-degree angle at your ankles. Brace your torso by contracting as if someone were going to punch you in the tummy. Contract the left side of your torso to lift your hips off the floor and in line with your feet and shoulders (A). Hold at the top for three seconds, then lower back down (B). That’s one rep; do 10. 

                                                                        

Hip Crossover

Lie on your back with your legs up, knees bent at 90 degrees directly over your hips. Extend your arms directly out from your shoulders and turn your palms upward (A). Brace your torso by contracting as if someone were going to punch you in the tummy. With control, lower your legs to the right until your feel pressure and contraction in your core, but without allowing your left shoulder to rise off the floor (B). Using the strength of your core, pull your legs back to the starting position. That’s one rep. Repeat the movement on the other side (C), then return to the starting position. Continue alternating sides, and do a total of 20 reps.