Motivation : 30 day plank challenge for beginners before and after results – Try this 30 day … 8 years ago 2.4k Views Share Share on PinterestShare on FacebookShare on Twitter Fitness and body Motivation Before and After Description 30 day plank challenge for beginners before and after results – Try this 30 day plank exercise for beginners to help you get a flat belly and smaller waist. 19 shares