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Individuals With Recurrent Low Back Pain Exhibit Significant Changes Of Paraspinal Muscle Performance After Lumbar Multifidus Intramuscular Fine Wire Electrode Insertion, Anthony Duong, Vincent Dinglasan, Russell Totten

UNLV Theses, Dissertations, Professional Papers, and Capstones

STUDY DESIGN: Case control study. BACKGROUND: Recurrent low back pain (RLBP) is associated with paraspinal muscle dysfunction. Intramuscular electromyography (EMG) is a common tool for studying activation of the deep lumbar paraspinal muscles such as multifidi muscles, but it is currently currently unclear how muscle performance and activation are affected by the pain and micro-injury associated with intramuscular fine-wire electrode (IFWE) insertion and how it interacts with the presence of RLBP. OBJECTIVES: The purpose of this study was to examine how IFWE insertion into the lumbar multifidus affects paraspinal muscle strength and endurance in subjects with and without RLBP. METHODS: …