Gait disorders in the elderly are common and in most cases cannot be treated medically or surgically. Therefore, treatment often relies on ambulatory devices such as canes, crutches, and walkers. Before selecting a device, the patient should be evaluated to define whether one or both upper extremities are required to achieve balance or bear weight.
The first living thing to go in space is a dog named Laika a russian dog that captured in moscow when its on space she died a few weeks.
The first animals in outer space were fruit flies launched in a captured Nazi V-2 rocket on Feb. 20, 1947. The flies reached an altitude of 68 miles (108 km) and were recovered alive by parachute. Albert II became the first monkey in space on June 4, 1949.