When people with IBS increase their levels of physical activity, they experience fewer symptoms. Exercising three to five times per week results in significant improvement. People with IBS who do not increase exercise actually experience more symptoms than they might have had they started exercising. That is to say, symptoms worsen significantly less over time with physical activity than without. In addition to preventing worsening symptoms, exercise can specifically help decrease the painful symptoms of constipation. Moving the body helps move the bowels (motility!), and moving the bowels is primary to good gut health!
Exercise will improve digestion in people whether or not they have IBS. Here’s a fun word: post-prandial; it means after a meal. Post-prandial exercise would include a walk after dinner. Walking after a meal (not sprinting) can be a nice way to improve digestion. You will be taking good care of your gut biome, as well as reducing stress, which is also good for your gut.