Yes. The Pilates exercises can be modified to match anyone's state of health, regardless of age. If you are new to formal exercise, a professional athlete or dancer, in a prenatal or postpartum period, recovering from surgery, or have chronic pain, the Pilates Method will be of benefit.
That said, it is always recommended that you consult with your health professional before beginning any exercise program. This will ensure that you have no preexisting conditions that might make certain types of exercise inadvisable.
"In ten sessions you will feel the difference, in twenty you will see the difference and in thirty you will have a whole new body"-Joseph Pilates