We're pretty sure that your resolution for 2013 includes one (or all) of the following phrases: "work out," "get fit," and "lose weight." How are you holding up so far, now that the year's almost over? If you were able to achieve your goals, then good job! But if you dropped your fitness routine midway through the year or completely failed to resolve your couch potato ways, you still have time to achieve a fitter bod! A new, challenging workout might be all you need to get off that comfy sofa and start your road to fitness. Take our quiz to know whether you should try Anti-Gravity yoga, Plyometrics, Krav Maga, or Plana Forma!