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. An answer to what is physiotherapy is what kinds of treatments physiotherapists use. When the data is gathered and analyzed, a program of physical therapy will be put into place. For safety's sake, it is often the routine to bring cardiac surgery patients into the hospital or an outpatient clinic for their exercise at first. Under the watchful eyes of nurses and physiotherapy personnel, cardiac surgery patients will be looked after as they perform their exercises. The spine will shrink and the whole body below that point will become weaker as time goes by. It is important that spinal cord injury patients get exercise of some form. They are prone to osteoporosis and heart problems, among other conditions. If there is a total lack of exercise, these risk factors become even more pronounced. It is one of the common sports injuries in people who play sports that challenge their knees, such as hockey, skating, skiing, basketball, and of course, football. It can limit the range of a player's motion in that leg, and make the leg weak. Surgery is sometimes done for these sports injuries, but physiotherapy is always a part of the treatment. It can be a difficult task of stroke rehabilitation to help victims relearn switching from one task to another. This is partly because of problems in the brain. The cues to move the muscles and joints in order to change movements are slow in coming. This is why practice is so important. The more times physiotherapists help a patient with this, the easier it becomes. Then, with adequate rearrangement of the workplace, the surgery should never be needed at all. 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.