Team Fitness Challenge: Crank the Planks!
One activity you can do just about anywhere, regardless of the weather, is a plank! If you've never done this exercise before, a plank is
similar to the "up" position of a pushup and works your core ab muscles
as well as your arms and shoulders. Like a pushup, there are different
ways to plank and it's a great strengthening exercise for all body types!