Mat Pilates is a strengthening and lengthening form of exercise that focuses on your core (trunk) muscles while also training your arms and legs. Mat Pilates is based on the original exercises Joseph Pilates developed to strengthen his own body as a young man. Pilates Mat work originated before the creation of any Pilates equipment or “machines” used in the practice today and includes over 500 exercises that can be practiced anywhere. Mat Pilates can be modified for any age, body, or fitness level, and it is even possible to practice modified Mat work in a chair.