The patient lies prone as for procedure 1. The therapist stands to one side of the patient, crosses the arms and places the heels of the hands on the transverse processes of the appropriate lumbar segment. A gentle pressure is applied symmetrically and immediately released, but the hands must not lose contact. This is repeated rhythmically to the same segment about ten times. Each pressure is a little stronger than the previous one, depending on the patient’s tolerance and the behaviour of the pain. The procedure should be applied to the adjacent segments, one at a time, until all the areas affected have been mobilised.
Fig. Positioning of hands prior to extension mobilisation. Extension mobilisation.
In this procedure the external force applied by the therapist enhances the effects on derangement and dysfunction as described for the previous extension procedures.
In general, symmetrical pressures are used on patients with central and bilateral symptoms. Therapist-technique must be added when the patient is unable to reduce derangement or resolve dysfunction by the self-treatment procedures. That situation appears in derangement when instead of progressively lessening pain extension in lying (procedure 3) causes the same pain with each repetition. Under those circumstances extension mobilisation is indicated.