The plank works the entire body — the core, abs, arms, back, shoulders, glutes and lower body, and it can help with back pain. I recommend that my clients include this low-impact exercise regularly in ...

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 ...