The Best Pageant Workout Plan for You - Pageant Planet I know that many people think running does it all, but running actually takes away from your muscles. If you are in the gym trying to get your muscles toned, but run on other days, it will take longer for you to see definition. Since running can be hard on your knees as well, there are many other cardio options. Try going to a group workout class like Zumba, jazzercise, step class, water aerobics, kickboxing, or spinning.