If you’re like many other gym-goers who are on a quest for six-pack abs, you’re probably used to doing a few rounds of crunches. But if you notice your back is feeling less than optimal after multiple sets, it’s time to reassess the exercise. It turns out the traditional crunch may do a lot more harm than good to your body. Not only that, but this exercise doesn’t target your core as effectively as many others.

Crunches strain your back and can cause damage

You know the drill for crunches — you lie on your back with your hands resting behind your head or beside your ears, and your feet rest on the floor. Then, you engage your core to curl toward your center to complete one rep. Slowly lower back down and repeat.

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