How to do a modified crunch If you’re unsure how to perform a crunch without straining your neck, try the modified version to work your core as you gain the confidence to tackle the full move.

Crunches can improve flexibility and posture as well. And they have the benefit of convivence "since you can perform crunches anywhere—whether it be at home or in a hotel room," says McDonough.

While daily exercise can boost metabolism, enhances mood, and improves cardiovascular health, crunches help strengthen core muscles, support posture and aid balance but should be combined with ...

But yes, defined abs do pop as well. Below, we cover how to do “traditional” crunches and why these three crunch variations are worth the hype alongside the best ab exercises around.

Moreover, doing flexion exercises such as crunches on a daily basis can put your spine at risk of injury. Don't fall into the trap of believing that doing crunches daily will decrease your belly fat.

Doing crunches is a great way to build your core strength, but that can only happen if you're doing them correctly. Here, a trainer explains how to do them properly.