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 ...

The plank feels endless—but it’s one of the most effective core exercises. Your ideal hold time depends on your age, fitness ...

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.

Pilates pro Simone de la Rue demonstrates how to do a plank jack—aka the ultimate cardio and core-strengthening move—with proper form. A little known fact about planks: In addition to working nearly ...