If you’re talking about “pole” in exercise classes these days, it usually involves stripper-esque tricks. But that’s not really what Joseph Pilates had in mind when he created apparatuses to help users build strength and flexibility. At the Pilates Center of Rockville, “Intro to Pole” offers newbies a chance to experience his kind of pole — or tower — a vertical assortment of springs, straps and a wooden bar. Read Article…