Thoracic Spine Manipulation for Individuals With Low Back Pain

"Middle Thoracic: Participants are placed in the supine position with their arms over their chest. The clinician rolls the participant to their side and places the fulcrum at the desired thoracic segment and the participant is rolled back onto the clinician's hand. The participant is instructed to take a deep breath. As the participant is exhaling, the clinician uses his body to push through the participant's arms to perform a high velocity thrust in an anterior to posterior directed force. Lower Thoracic: With the patient in a prone position, the clinician achieves a skin lock with both pisiforms over the transverse processes of the target vertebra. The clinician then uses his body to push down through his arms to perform a high-velocity, low-amplitude posterior to anterior thrust."

The participants are positioned in prone and the clinician's hands are placed with the pisiforms of each hand over the transverse processes of the target vertebra. The clinician will only apply minimal pressure and slide the hands across the skin to mimic the manipulative thrust. This sham procedure has been shown to be an adequate sham comparator for spinal manipulative therapy (SMT) with similar expectations and believability as SMT active treatment

Both groups will receive the following exercises at each visit. The core strengthening (core strengthening) exercises are a standard protocol used by Richardson et al and Franca et al which are proposed to target muscles responsible for segmental stabilization, specifically the transverse abdominis (TrA) and the lumbar multifidi (LM). Exercises will include: TrA exercises in 4 point kneeling and in supine with flexed knee, LM exercises in prone, and co-contraction of TrA and LM in upright position. Three sets of 15 repetitions will be done for each exercise.