The key is knowing how to do a plank, however. As good as the exercise is, you have to do it exactly right to reap the benefits. As one of the best core exercises to do at home, the plank can also ...

Fitness and wellness expert Michele Cuffe demonstrates the proper way to do the plank exercise and shares the amount of time everyone should be able to do it depending on their age.

A plank is a core exercise that requires glute and leg strength, as well as shoulder stability. To hold a plank, you need to keep your spine neutral and support it with your abdominal muscles. That ...