I don’t know the name of this position but the idea is to maintain a straight back while lowering your body to the floor. To complete it is amongst the more challenging exercises I know of.#challengingexercises #hardexercise #coreexercises #strongback #strongcorestrongbody (at Hastings, East Sussex) https://www.instagram.com/p/CSjEUmXDOSD/?utm_medium=tumblr









