These problems require special attention as osteoporosis makes patients frailer, and osteoarthritis is very painful. Because falls are such a problem, the osteoporosis therapy is crucial. Along with that, geriatric physiotherapy is responsible for preventing many falls because of work with balance and gait. It can also speed healing. Back exercises may be assigned by a physiotherapist. These exercises will help with lower back pain if one does them correctly and faithfully. The only exception is if the back is in an acute condition requiring emergency care or surgery. The exercises that will help with lower back pain the most will be assigned and supervised by a physiotherapist. Tennis elbow can be an occupational injury as well, occurring any time one repetitively twists one's wrists. This movement is often done in packing plants, for example, as workers twist products into containers. Patients who have an occupational injury are often put on light duty. Some are even laid off. Physiotherapy for spinal cord injury involves exercising and stimulating the nerves and muscles below the level of the damage. This will allow patients with spinal cord injury to stay in good physical condition where they can. That way, if a cure becomes available, they will not be too weakened to benefit from it. Another of the sports injuries that physiotherapy is used for is tennis elbow. One might get tennis elbow from playing tennis, certainly, but it can also come about from any activity that involves twisting the wrist. Sports injuries like tennis elbow are treated with a comprehensive plan of physiotherapy. For the sufferer of rheumatoid arthritis, life is a constant learning experience. Each time a new movement is done, one finds out if it makes the condition feel worse or better. Rheumatoid arthritis patients may feel fatigue. They will likely have a great amount of pain and stiffness in their joints.