Free to OTC Students, Faculty, and Staff What is Pilates? Pilates is a core building exercise that improves flexibility and agility. Stability balls and resistance bands will be used in class for total body exercises. Classes held at OTC Springfield Campus in Lincoln 211, except for the following dates, when classes will be held in ICW 108C: Feb 1, 29 Mar 7, 28 Apr 4, 11, 16, 23, 25 May 14, 16