Physiotherapy personnel are challenged to keep the child's spirits up as they teach them how to exercise with and without special equipment. Brain injuries, including cerebral palsy and strokes are pediatric disorders that must be managed delicately. The neurological system is often not as sturdy as the skeletal or muscular systems. Chiropractic doctors practice physiotherapy techniques to put the body back into alignment after postural problems occur. They can do manipulations to help the patient regain full range of motion. They can also work on the muscles to ease tension there. Postural problems are common for people of all ages. Many other diseases that restrict or limit breathing are included. It is most often caused by cigarette smoking, but also can be caused by inhaling other irritants such as those in the workplace. Chronic airways disease is more common among the elderly. Along with having shortness of breath, the patient is likely to wheeze and cough frequently. Patients have injuries from sports, car accidents, or assault. These injuries can be treated through physiotherapy. Given the right treatments and an injury that will respond to treatment, much progress can be made. Full functioning may be regained. It may even be possible for them to go back to work rather than being laid up at home. Different physiotherapy credentialing agencies are relied upon in different states. Some require a score of 600 or more on the licensing exam. Some require on-the-job training or professional references from physiotherapists who observe them in training. Most states also require some ongoing education to keep physiotherapy credentials current. Children are just developing, and a problem in childhood can lead to lifelong pain. Some sports injuries happen because something physically traumatic happens to your body. Someone runs into you as you run with the football towards the end zone, for example. Other times, it is simply a matter of the physical demands you put on your body.