Abstract: The mobile standing air has a rectangular base with two main wheels near the rearward portion of the base and two main caster wheels mounted on upward, forward and outward extensions near the front of the frame. Two rearward extensions mount smaller caster wheels to prevent rearward tipping. The standing aid has four members which extend vertically from the base. Horizontal pieces between the members form side and front walls which extend upward to an upper high area of a user. The rear of the machine is closed with a pivoted butt pad support which clamps a user in the machine along with forward relatively large thigh pads, a smaller horizontal lower knee pad and a horizontal heel or Achilles pad at the rear. Side pads are positioned adjacent the heel pad and halfway up the side portions at the knee area of a user. The effect of the pads is to firmly splint legs in place. Hand wheels on opposite sides drive sprockets and chains and pinions attached inside the main wheels.