How to do the perfect side plank, and how to make it easier (and harder). Planks are hard. Even just 30 seconds in plank position can feel like an eternity. But as challenging as planks are, side ...

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 ...

We tend to think about the exercise in isolation, but a plank is fundamental to proper form in a huge variety of everyday exercises: press ups, mountain climbers and burpees, to name just three.

Directions: Williams suggests doing three to five minutes of cardio such as jogging or skipping in place beforehand. She said you can also pair that with leg swings, arm circles, and torso twists.