Effectively building your abs while barely moving a muscle sounds too good to be true, but the plank does exactly that. In fact, a study at the Biomechanics Lab at San Diego State University recently found the plank works your core more effectively t

Effectively building your abs while barely moving a muscle sounds too good to be true, but the plank does exactly that. In fact, a study at the Biomechanics Lab at San Diego State University recently found the plank works your core more effectively t

Original article and pictures take https://menshealth.co.uk site