The most typical symptom of IBD unrelated to your gut? Joint pain, according to the Crohn's and Colitis Foundation. Which, as anyone can imagine, can make fitness tricky. But Pilates is an option, because most classes focus on lengthening, strengthening, and breath control, and you can modify movements so they don’t bother your tender joints. According to the Arthritis Foundation, Pilates can help you become stronger and more flexible and increase your body control and endurance.