30 Day Plank Challenge? The guys at my work are doing a 100 push up challenge, and I was listening to them talk about their progress, it’s really exciting listening to them tell about their last nights work out with the challenge. I found an app has 30 day challenges on it. I am thinking about the plank challenge. If you want to look into the app, it is called 30 Day Fitness Challenges. Let me know if you want to join in. I’m going to start the Plank Challenge tonight, I’m excited to see how it goes.