“…12 Facet joint capsule strain magnitudes during simulated HVLA-SM were within the range that occurred during maximum physiological motions, 12 indicating that the procedure is biomechanically safe and provided a stimulus that is likely sufficient to stimulate FJC neurons. 3 However, physiological motions of the lumbar spine by themselves (eg, exercise) are generally ineffective in treating LBP, 13 suggesting that FJC strain magnitude alone would be insufficient in providing a novel stimulus for FJC afferents. In a rabbit model, lumbar FJC and paraspinal muscle afferents functioned as b velocity detectors,Q responding to joint loading and loading rate.…”