Worst Exercises to Do
These Are the Exercises Your Trainer Wishes You'd Stop Doing
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"In my opinion, they're a total waste of time," says Dunlop. "They only target a very small portion of your abs and can be tough on your neck and shoulders, especially if you don't quite have the strength to fully use your core to get up. A better option would be a plank or double leg lift, which both engage almost your entire abdominal wall and specifically target your lower abs, which is most people's problem area," she explains. To do a double leg lift, lay down on a mat and lift your legs straight up in the air, pulsing upwards.