gripping the sides of the bench. Your legs should be extended with your heels on the ground. Crunch your abs to pull your knees up and back toward your chest." Aim for two sets of as many reps as ...

Neck pain is an especially common complaint when people do abdominal crunches. Although crunches seem easy, research suggests that they can increase the risk of low-back pain when they’re not ...

but the pay off is a time-effective way to level-up your abs. We think you’ll love this method. Of course, you can perform these crunches on a sit-up bench in the gym if you prefer How to do it ...

Place your feet up on a bench or sofa. Start as you did for the abdominal crunch, lying on the floor with your knees bent and arms across your chest with hands on opposite shoulders. Again look at ...