Fundraise YCR Events Facebook 30 Day Plank Challenge Are you on Facebook? Want to join our Plank Challenge? Just following this link to get started! We have a plank plan already sorted, follow it each day and join our plank community. The challenge starts 1st Feb and lasts for 30 days, at the end of the challenge the goal is to be able to plank for 2 minutes! Who's in? Did you know? Planks help you develop isometric strength in your core muscles, which gives you the power to keep from hunching while standing or sitting for long periods of time.