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.

Bicycle crunches strengthen the abs, including the obliques, but they need to be done with a neutral lumbar spine to avoid irritation – here's how to do them correctly ...

Turns out that there are 2 major mistakes people make when doing bicycle crunches. So here, a trainer clarifies how to do bicycle crunches the right way.

When done properly, the exercise has also been shown to strengthen the lower back—reducing risk of injury and lower back pain. Crunches can improve flexibility and posture as well.

Life Time Fitness instructor Joseph David explained how many crunches you should be able to do at each age and what it reveals about your health if you can’t meet the target.

A fitness trainer shared how many crunches people should be able to do according to their age. Here's what to know about the main benefits of the exercise.