My friend Tera at Girl Gone Healthy posted this summer plank challenge on Facebook the other day. Immediately I wanted to jump on board. I participated in this challenge last year and got myself up to a 7 minute plank! My core had never been so strong. Then, as things usually go, I kind of stopped doing them. I still throw them in my workouts occassionally, but it stopped being an every day thing. Well I’m ready to get back to the challenge. A plank a day. Side plank, forearm plank, military plank…whatever you fancy. Hold the position for as long as you possibly can (preferably before you start seeing spots).