An interruption in one or more of the parameters will lead to a disruption in fluency. I'll discuss each one separately. Most basically, we have to have air flowing in order to speak. Respiration provides the energy or driving source for speech. The client has to be aware of events occurring at the level of the rib cage, and develop awareness of how much air is in the lungs.
Movement occurs at a number of levels.
We typically think of movement of the speech structures, but we also have movement of the rib cage to consider, as well. It is obvious that without movement, we can't speak. A basic example of this is voice onset time. I'll discuss this further later in the paper. We obviously have to have some type of sound in order to produce speech, since speech is just a series of sounds.