Abstract: A portable chair for use by an obstetrics practitioner during delivery of a baby, comprising a seat for receiving the posterior of the practitioner, a height adjustment means for varying the height of the seat above a floor surface (such as in a delivery room or home environment), and a base unit configured to allow translation of the chair in a plurality of directions across the floor surface. The height adjustment means is adapted for lowering the height of the seat to a first 0 level at which the posterior of the practitioner is maintained substantially at the level of the base unit, thereby allowing the practitioner to facilitate delivery when the mother gives birth in a standing or upright position.