The present invention relates to arm support, comprising: a carrier, connectable to or forming part of a user support, such as a (wheel) chair; a first arm-part, pivotably connected to the carrier; a second arm-part, rotatably connected to the first arm-part, comprising a support, such as a scale, for an fore arm; a first spring-element, for exerting a force on the first arm-part with respect to the carrier, and a second spring-element, for exerting a force on the second arm-part with respect to a reference outside the second arm part.