{"id":3540,"date":"2000-09-21T17:56:13","date_gmt":"2000-09-22T00:56:13","guid":{"rendered":"https:\/\/www.activator.com\/?p=3540"},"modified":"2023-06-07T08:32:01","modified_gmt":"2023-06-07T15:32:01","slug":"lumbar-erector-spinae-reflex-responses-to-mechanical-force-manually-assisted-thoracolumbar-and-sacroiliac-joint-manipulation-in-patients-with-low-back-pain","status":"publish","type":"post","link":"https:\/\/activator.com\/lumbar-erector-spinae-reflex-responses-to-mechanical-force-manually-assisted-thoracolumbar-and-sacroiliac-joint-manipulation-in-patients-with-low-back-pain\/","title":{"rendered":"Lumbar Erector Spinae Reflex Responses to Mechanical Force, Manually- Assisted Thoracolumbar and Sacroiliac Joint Manipulation in Patients with Low Back Pain"},"content":{"rendered":"<h3>ABSTRACT<\/h3>\n<p>The purpose of this study was to determine the neuromuscular\u00a0 reflex responses of the erector spinae musculature to spinal\u00a0 manipulative thrusts (SMTs) in patients with LBP. 20 (10 male\/10 female,\u00a0 mean age = 43 yrs.) consecutive LBP patients received MFMA SMTs\u00a0 delivered to the transverse and spinous processes of T8, T12, L2, L4,\u00a0 L5, and the sacral base and PSIS by means of an Activator Adjusting\u00a0 Instrument (AAI) equipped with an impedance head. Surface, linear\u00a0 enveloped, electromyographic (sEMG) recordings were obtained from\u00a0 electrodes located bilaterally over the L5 and L3 erector spinae muscles\u00a0 during each of the thrusts. Repeated pre. post isometric extension\u00a0 strength tests were performed to normalize reflex data. 1600 sEMG\u00a0 recordings were analyzed from 20 SMT treatments and comparisons were\u00a0 made between segmental level, segmental contact point (spinous vs.\u00a0 tranverse processes), and magnitude of the sEMG reflex response. SEMG\u00a0 threshold was further assessed for correlation of patient self. reported\u00a0 pain and disability, Consistent, but relatively localized sEMG reflex\u00a0 responses occurred in response to the MFMA SMTs. 95 % of patients showed\u00a0 a positive sEMG response to MFMA SMT, Patients with frequent to\u00a0 constant LBP symptoms tended to have a more marked sEMG response in\u00a0 comparison to patients with occasional to intermittent LBP. This is the\u00a0 first study demonstrating neuromuscular reflex responses associated with\u00a0 MFMA SMT in patients with LBP.<\/p>\n<hr \/>\n<p><strong>Reference:<\/strong> Christopher J. Colloca, D.C.<sup>1<\/sup>, Tony S. Keller, Ph.D. <sup>2<\/sup>, Daryn E. Seltzer, D.C.<sup>3<\/sup>, Arlan W. Fuhr, D.C.<sup>1<\/sup>;\u00a0 Lumbar Erector Spinae Reflex Responses to Mechanical Force, Manually-\u00a0 Assisted Thoracolumbar and Sacroiliac Joint Manipulation in Patients\u00a0 with Low Back Pain; Proceedings of the 2000 International Conference on Spinal\u00a0 Manipulation, Bloomington, MN September 21-23,2000.<\/p>\n<hr \/>\n<p><sup>1<\/sup> Postdoctoral &amp; Related Professional Education\u00a0 Department Faculty, Logan College of Chiropractic, St, Louis, MO, USA;\u00a0 National Institute of Chiropractic Research, Phoenix, AZ, USA; Private\u00a0 Practice of Chiropractic, Phoenix, AZ, USA. <sup>2<\/sup> Professor, Department of Mechanical Engineering\u00a0 &amp; Department of Orthopedics and Rehabilitation, The University of\u00a0 Vermont, Burlington, VT, USA. <sup>3<\/sup> National Institute of Chiropractic Research, Phoenix, AZ, USA; Private Practice of Chiropractic, Phoenix, AZ, USA.<\/p>\n<script>function getWR360PopupSkin(){return 'light_clean';}<\/script>","protected":false},"excerpt":{"rendered":"<p>ABSTRACT The purpose of this study was to determine the neuromuscular\u00a0 reflex responses of the erector spinae musculature to spinal\u00a0 manipulative thrusts (SMTs) in patients with LBP. 20 (10 male\/10 female,\u00a0 mean age = 43 yrs.) consecutive LBP patients received MFMA SMTs\u00a0 delivered to the transverse and spinous processes of T8, T12, L2, L4,\u00a0 L5, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[5,34,24,4,101],"tags":[19,100],"class_list":["post-3540","post","type-post","status-publish","format-standard","hentry","category-activator-i","category-conference-presentation","category-neurophysiological","category-research","category-sacroiliac-joint","tag-manipulation","tag-sacroiliac"],"acf":[],"_links":{"self":[{"href":"https:\/\/activator.com\/wp-json\/wp\/v2\/posts\/3540","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/activator.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/activator.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/activator.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/activator.com\/wp-json\/wp\/v2\/comments?post=3540"}],"version-history":[{"count":1,"href":"https:\/\/activator.com\/wp-json\/wp\/v2\/posts\/3540\/revisions"}],"predecessor-version":[{"id":133738,"href":"https:\/\/activator.com\/wp-json\/wp\/v2\/posts\/3540\/revisions\/133738"}],"wp:attachment":[{"href":"https:\/\/activator.com\/wp-json\/wp\/v2\/media?parent=3540"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/activator.com\/wp-json\/wp\/v2\/categories?post=3540"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/activator.com\/wp-json\/wp\/v2\/tags?post=3540"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}