February's Fitness Challenge Is: Core Exercises That Aren't Planks
by Beth Skwarecki on Vitals, shared by Beth Skwarecki from Lifehacker on (#488VJ)
Perhaps my favorite moment of the Lifehacker fitness challenge so far was the day that we were done with the plank challenge. I hate planks. Luckily, it's possible to work out your core without having to do a single plank.