If You Can Invest Just 10 Minutes A Day You Can Have A Flatter Belly

1. Crisscross
Lie on back with legs extended over hips, hands behind head, and shoulder blades lifted off floor (place ball between ankles, if desired). Lower legs toward floor a few inches. Cross one leg over the other, then switch. Continue crisscrossing legs for 60 seconds.

Expert tip: Don't let your back arch; if your lower back hurts, raise your legs higher.


2. Reverse crunch drop
Lie on back with knees bent, hands behind head, and shoulder blades lifted off floor (place ball between knees, if desired). Pull belly in and lift hips toward chest, then extend legs toward ceiling and lower legs toward floor. Return to starting position, immediately moving into next rep.

Expert tip: Use belly strength, not momentum.

3. U-boat

Sit on floor with knees bent, feet flat on floor, and hands behind head (place ball behind lower back, if desired). Lean back a few inches to lift feet off floor. Tap one foot to floor, then the other. Keep chest lifted and abs engaged.


Expert tip: To make it easier, support your upper body with your elbows and forearms on the floor. Don't allow your back to arch.