Plank Challenge How to Do The plank challenge is a fitness challenge that has been around for years and shows no signs of slowing down. The challenge is simple: Hold a plank for as long as possible. Although the challenge may sound simple, it is not easy. The plank requires a lot of core strength and stability. It is a true test of strength, stamina and will power. If you’re looking for a new fitness challenge, or if you’re just curious about the Plank challenge, read on for everything you need to know. We’ll cover how to do the challenge, the benefits of the challenge, and some safety tips to…