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.
By December 1958, the Americans had sent a living creature into space and in May 1959 monkeys Able and Baker became the first animals to survive the trip. Yet these early American achievements were eclipsed on April 12, 1961 when the Soviet Union put the first human, Yuri Gagarin, into space.