A foldable push chair comprising a central chassis assembly extending substantially horizontally across the push chair and perpendicularly to the forward direction of travel of the push chair; a handle assembly connected to the central chassis assembly and extending therefrom; a shaft assembly extending through the central chassis assembly across the push chair and substantially perpendicular to the forward direction of travel of the push chair, at least one forward extending wheel supporting leg and at least one rearward extending wheel supporting leg extending from the central chassis assembly and rotatable around an axis extending along a longitudinal axis of the shaft assembly; the forward and rearward extending legs being coupled together such that they rotate in opposite directions around the shaft assembly during a folding or unfolding operation, latching mechanism engageable with at least one wheel supporting leg and the central chassis assembly or handle assembly for ensuring the push chair can be latched in either or both of an unfolded state or a folded state; energy storage means engaging with at least one wheel supporting leg (14; 16) and the central chassis assembly or handle assembly, the energy storage means being configurable to be loaded with energy either: a) by changing the push chair from a folded state to an unfolded state, or b) by changing the push chair from an unfolded state to a folded state; when the energy storage means is at least partially loaded with energy at least some of the energy stored in the energy storage means being used to assist in either: i) folding the push chair, if energy has been stored by changing the push chair from a folded state to an unfolded state, or ii) unfolding the push chair, if energy has been stored by changing the push chair from an unfolded state to a folded state, respectively when the latching mechanism is released. a shaft assembly extending through the central chassis assembly across the push chair and substantially perpendicular to the forward direction of travel of the push chair, at least one forward extending wheel supporting leg and at least one rearward extending wheel supporting leg extending from the central chassis assembly and rotatable around an axis extending along a longitudinal axis of the shaft assembly; the forward and rearward extending legs being coupled together such that they rotate in opposite directions around the shaft assembly during a folding or unfolding operation, latching mechanism engageable with at least one wheel supporting leg and the central chassis assembly or handle assembly for ensuring the push chair can be latched in either or both of an unfolded state or a folded state; energy storage means engaging with at least one wheel supporting leg (14; 16) and the central chassis assembly or handle assembly, the energy storage means being configurable to be loaded with energy either: a) by changing the push chair from a folded state to an unfolded state, or b) by changing the push chair from an unfolded state to a folded state; a) by changing the push chair from a folded state to an unfolded state, or b) by changing the push chair from an unfolded state to a folded state; when the energy storage means is at least partially loaded with energy at least some of the energy stored in the energy storage means being used to assist in either: i) folding the push chair, if energy has been stored by changing the push chair from a folded state to an unfolded state, or ii) unfolding the push chair, if energy has been stored by changing the push chair from an unfolded state to a folded state, respectively when the latching mechanism is released.