Journal article
Near infrared spectroscopy confirms recruitment of specific lumbar extensors through neuromuscular electrical stimulation
Physiotherapy theory and practice, v 36(4), pp 516-523
02 Apr 2020
PMID: 29952686
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Background: Lumbar multifidus impairments are associated with low back pain (LBP), with sustained impairments thought to contribute to recurrence and chronicity of pain. Ability to regain muscle function can be challenging. While neuromuscular electrical stimulation (NMES) may aid in muscle function recovery, validity of its ability to selectively recruit the lumbar multifidus and provide adequate dosage for muscle overload has not been demonstrated. Near infrared spectroscopy (NIRS) can be used to determine muscle selectivity and overload during NMES and offers advantages over electromyography (EMG), which is affected by electrical interference. Objective: The aim of this study was to determine the ability of NMES to activate and overload the lumbar multifidus in isolation. Methods: EMG and NIRS were collected over the trunk extensors during standardized movements followed by delivery of NMES in 10 healthy participants. NIRS was used to determine the ability of NMES to selectively recruit the lumbar multifidus at the L5 region relative to other trunk extensors. EMG and NIRS data were then entered into a linear regression model to predict muscle activity during NMES relative to the standardized movements. Results: There was a significant correlation (r = 0.81, p < 0.001) between EMG and NIRS in the lumbar multifidus. There was significantly greater activation of lumbar multifidus compared to lumbar erector spinae using specific NMES electrode placement (p < 0.001). Conclusion: NMES can preferentially activate lumbar multifidus with potential to provide a therapeutic overload to these muscles in healthy participants. It may be a promising intervention for individuals with LBP.
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Details
- Title
- Near infrared spectroscopy confirms recruitment of specific lumbar extensors through neuromuscular electrical stimulation
- Creators
- Won Sung - GSPP Penn Therapy and FitnessArdy Wong - School of Biomedical Engineering Science and Health Systems, Drexel UniversityAhmad Pourshogi - Drexel UniversityKambiz Pourrezaei - Drexel UniversitySheri Silfies - Drexel University
- Publication Details
- Physiotherapy theory and practice, v 36(4), pp 516-523
- Publisher
- Taylor & Francis
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- School of Biomedical Engineering, Science, and Health Systems; Physical Therapy (and Rehabilitation Sciences)
- Web of Science ID
- WOS:000536925300007
- Scopus ID
- 2-s2.0-85049153018
- Other Identifier
- 991019167556104721
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- Collaboration types
- International collaboration
- Web of Science research areas
- Rehabilitation