Today's routine looks pretty easy, but can actually be quite tough. I call it the "Spider Plank" but it's also known by many other names. This works your obliques.
How do you do it? Start in an upper plank position with your palms on the floor. Balance on your left toes and lift your right knee to meet your elbow. As you do this, slightly bend your elbow so you are leaning in. Do this on the other side as well.
For a visual demonstration, check out the video below.
Cheers Eights & Weights!