Pain in the Knees? Don’t let your achy knees dictate your fitness routine! You don’t have to be free of all joint issues to feel good mid-workout while doing Pilates. This 100-year-old workout (created in the 1920s by physical trainer Joseph Pilates) is designed to stabilize and strengthen your knees. We have a Pilates mat workout that is all about strengthening your knees and feeling good. Fun fact: Some of the first people treated by Pilates were soldiers returning from war and dancers such as Martha Graham and George Balanchine (to strengthen their bodies and heal their aches and pains).