There is provided an assembly for selectively coupling together elongate members, of a walker apparatus. The assembly includes-a push-responsive actuator actuation of a first portion, of which promotes coupling of the elongate members together. The assembly includes an actuator-engagement member moveable from an unengaged position spaced-apart from the, actuator to an engaged position in which the actuator-engagement member extends across and actuates the first portion of the actuator.
