Over a period of nine years, he came up with a solution: the Alexander Technique. The system Alexander designed did the trick of restoring his voice. This was nothing short of a miracle for him. His voice was of utmost importance to him as an actor. He did not name the system the Alexander Technique, though. This is done by cupping the hand and clapping the back to loosen secretions in the chest. It is also called chest percussion. The physiotherapist will do this procedure, and will teach it to a family member or caregiver. People with chronic airways disease often have a problem with weakening legs. This is because, as they have trouble breathing, they avoid walking or doing physical exercise of any sort. Some postural problems are caused because a person has pain in one part of her body. She might count on other muscles to do the work of the ones that hurt. This could lead to an unbalanced or awkward posture. It could cause more pain in the long run. Postural problems can be treated with physiotherapy such as heat, massage, exercises, and chiropractic manipulation. After the initial period of the monitored physiotherapy has passed, cardiac surgery patients will be sent to do their exercising at home. Before they go, though, they will have been taught warm-up and stretching exercises, and when to stop. Generally, they should exercise three to five times a week unless they are having problems. One is not out of line to ask about what kind of physiotherapy credentials such a person has. The standard may simply be a two-year course of study at a Jr. College or a specialty school. Yet, it is important that the clinic is not just hiring anyone who walks in off the street. While physical therapy aides can help with certain treatment tasks, it is the physiotherapist that assesses the condition of the patient. At other places, one simply takes about three years of school after the bachelor's degree. Doctoral degrees have similar requirements. Before one gets into a physiotherapy degree program, one needs to meet specific requirements. Coursework in various life sciences like biology, anatomy are needed. Also important are courses in fields like psychology and social science.