A hose assembly which bridges a number of joints of an articulated assembly. In one particular embodiment the assembly includes a flexible hose carrying pressurized fluid and additional fluid carrying pipes, electrical wires or fibre optic cables which share a common route over the articulated assembly. Conventionally such additional pipes, wires, cables and the like are attached to hose like structures by some form of "p" clip, tie, band or clamp in a tandem relationship in order to prevent relative movement at the attachment points. Too few attachment points allow the additional pipes etc too much freedom of movement so they may become snagged or otherwise damaged. Too many attachment points will cause the additional pipes, wires and cables to be stretched in tension as the hose flexes in use. Repeated stretching may cause the additional pipes, wires and cables to become weakened and fail. A hydraulic hose assembly is used in a particular embodiment to convey hydraulic fluid and electrical or optical control signals from power sources carried on a relatively static base member to a driven arrangement at the distal end of an articulated assembly. In the same way as the motion of the flexible hose is dependent upon the motion of the articulated assembly, the motion of the at least one co-extending flexible member is dependent upon the motion of the flexible hose. If the flexible hose and the at least one co-extending flexible member bend solely along a common neutral axis then the resilient mounting means has no effect. In such a situation where there is no relative movement between the flexible hose and the co-extending member the bending forces in the walls of the flexible hose and the co-extending member will be substantially equal.