The invention relates to a walking aid device (1) for a person, the device comprising a frame (10), a base (100) that is at least vertically movable relative to the frame (10) between a first, low, seated position and a second, high, walking position, a device (20) for adjusting the vertical elevation position of the movable base, which is designed to move the base at least between its first, high position and its second, low position, and a support member (200) which is intended to be in contact with the person and which is movable relative to the frame (10) between a first, low, seated position in which the person can sit thereon and a height-adjustable second, high, walking position in which the person is supported at least partially by the support member in a sitting-standing position, characterised in that it further comprises a shock-absorption means (300) located between the movable base and the support member and designed to allow an alternating upward and downward movement thereof, the alternating movement having at least one vertical component and accompanying the movement of the person when the person is using the walking aid device.