A patient transport apparatus comprises a support structure. The support structure comprises a base, a frame, and a patient support surface to support a patient. One or more handle assemblies are coupled to the frame to maneuver the patient transport apparatus. Each handle assembly comprises a handle and a handle extension supporting the handle. The handle extension is configured to articulate relative to the frame from a stowed position to a use position such that the handle is adjacent to the frame in the stowed position and the handle is extended from the frame by the handle extension in the use position. The apparatus also includes a locking device comprising one or more locking elements configured to discretely lock and unlock the handle extension relative to the frame in the use position or the stowed position.