Embodiments of the invention relate to an apparatus for assisted walking on stairs or other sloped surfaces. The apparatus may also be used for assisted walking on slippery surfaces. The apparatus comprises a fixed support and a moveable support. The fixed support is fixed relative to the stairs or other walking surface, while the movable support is selectively moveable relative to the stairs and fixed support in a direction substantially parallel to an incline of the stairs. The movable support is selectively positionable relative to the fixed support in one of a plurality of closely spaced discrete locking positions in which the movable support can support a personal relative to the stairs.