A limb-support assembly for use with an assistive device includes a weight-bearing member having a first edge. The weight-bearing member includes a planar receiving surface configured for receiving a users lower limb. A mounting assembly is configured for removably coupling the weight-bearing member to an assistive device. The mounting assembly includes a first mounting brace extending outwardly from the first edge of the weight-bearing member and above the receiving surface. A mounting aperture is defined in the weight-bearing member between the first mounting brace and the receiving surface. The mounting aperture is configured for receiving a portion of the assistive device. When a portion of the assistive device is received by the mounting aperture, and when weight is placed on the receiving surface, the first mounting brace is configured to press against an opposing side of the assistive device from the receiving surface.
