One of the employees, Dwight, brought a stability ball to work for his chair. He announced while bouncing up and down and otherwise trying to stay upright that "This ab workout strengthens your core!"
(Eventually his cubicle neighbor punctured the ball because Dwight was flopping all over the place and knocking objects over, even though the exercises were supposed to make him "more coordinated.")
I know we've had movie / TV scenes in the past, but are there any other recent movies or TV shows featuring fitness?