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Frasie A, Massé-Alarie H, Bielmann M, Gauthier N, Roudjane M, Pagé I, Gosselin B, Roy JS, Messaddeq Y, Bouyer LJ. Potential of a New, Flexible Electrode sEMG System in Detecting Electromyographic Activation in Low Back Muscles during Clinical Tests: A Pilot Study on Wearables for Pain Management. SENSORS (BASEL, SWITZERLAND) 2024; 24:4510. [PMID: 39065908 PMCID: PMC11280768 DOI: 10.3390/s24144510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2024] [Revised: 06/30/2024] [Accepted: 07/09/2024] [Indexed: 07/28/2024]
Abstract
BACKGROUND While low back pain (LBP) is the leading cause of disability worldwide, its clinical objective assessment is currently limited. Part of this syndrome arises from the abnormal sensorimotor control of back muscles, involving increased muscle fatigability (i.e., assessed with the Biering-Sorensen test) and abnormal muscle activation patterns (i.e., the flexion-extension test). Surface electromyography (sEMG) provides objective measures of muscle fatigue development (median frequency drop, MDF) and activation patterns (RMS amplitude change). This study therefore assessed the sensitivity and validity of a novel and flexible sEMG system (NSS) based on PEVA electrodes and potentially embeddable in textiles, as a tool for objective clinical LBP assessment. METHODS Twelve participants wearing NSS and a commercial laboratory sEMG system (CSS) performed two clinical tests used in LBP assessment (Biering-Sorensen and flexion-extension). Erector spinae muscle activity was recorded at T12-L1 and L4-L5. RESULTS NSS showed sensitivity to sEMG changes associated with fatigue development and muscle activations during flexion-extension movements (p < 0.05) that were similar to CSS (p > 0.05). Raw signals showed moderate cross-correlations (MDF: 0.60-0.68; RMS: 0.53-0.62). Adding conductive gel to the PEVA electrodes did not influence sEMG signal interpretation (p > 0.05). CONCLUSIONS This novel sEMG system is promising for assessing electrophysiological indicators of LBP during clinical tests.
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Affiliation(s)
- Antoine Frasie
- Center for Interdisciplinary Research in Rehabilitation and Social Integration (CIRRIS), Centre Intégré Universitaire de Santé et de Services Sociaux de la Capitale Nationale (CIUSSS-CN), Quebec City, QC G1M 2S8, Canada; (A.F.); (H.M.-A.); (M.B.); (N.G.); (I.P.); (B.G.); (J.-S.R.); (Y.M.)
| | - Hugo Massé-Alarie
- Center for Interdisciplinary Research in Rehabilitation and Social Integration (CIRRIS), Centre Intégré Universitaire de Santé et de Services Sociaux de la Capitale Nationale (CIUSSS-CN), Quebec City, QC G1M 2S8, Canada; (A.F.); (H.M.-A.); (M.B.); (N.G.); (I.P.); (B.G.); (J.-S.R.); (Y.M.)
- School of Rehabilitation Sciences, Faculty of Medicine, Université Laval, Quebec City, QC G1M 2X8, Canada;
| | - Mathieu Bielmann
- Center for Interdisciplinary Research in Rehabilitation and Social Integration (CIRRIS), Centre Intégré Universitaire de Santé et de Services Sociaux de la Capitale Nationale (CIUSSS-CN), Quebec City, QC G1M 2S8, Canada; (A.F.); (H.M.-A.); (M.B.); (N.G.); (I.P.); (B.G.); (J.-S.R.); (Y.M.)
| | - Nicolas Gauthier
- Center for Interdisciplinary Research in Rehabilitation and Social Integration (CIRRIS), Centre Intégré Universitaire de Santé et de Services Sociaux de la Capitale Nationale (CIUSSS-CN), Quebec City, QC G1M 2S8, Canada; (A.F.); (H.M.-A.); (M.B.); (N.G.); (I.P.); (B.G.); (J.-S.R.); (Y.M.)
- Department of Computer and Electrical Engineering, Faculty of Science and Engineering, Université Laval, Quebec City, QC G1V 0A6, Canada
| | - Mourad Roudjane
- School of Rehabilitation Sciences, Faculty of Medicine, Université Laval, Quebec City, QC G1M 2X8, Canada;
- Center for Optics, Photonics and Lasers (COPL), Department of Physics, Faculty of Science and Engineering, Université Laval, Quebec City, QC G1V 0A6, Canada
| | - Isabelle Pagé
- Center for Interdisciplinary Research in Rehabilitation and Social Integration (CIRRIS), Centre Intégré Universitaire de Santé et de Services Sociaux de la Capitale Nationale (CIUSSS-CN), Quebec City, QC G1M 2S8, Canada; (A.F.); (H.M.-A.); (M.B.); (N.G.); (I.P.); (B.G.); (J.-S.R.); (Y.M.)
| | - Benoit Gosselin
- Center for Interdisciplinary Research in Rehabilitation and Social Integration (CIRRIS), Centre Intégré Universitaire de Santé et de Services Sociaux de la Capitale Nationale (CIUSSS-CN), Quebec City, QC G1M 2S8, Canada; (A.F.); (H.M.-A.); (M.B.); (N.G.); (I.P.); (B.G.); (J.-S.R.); (Y.M.)
- Department of Computer and Electrical Engineering, Faculty of Science and Engineering, Université Laval, Quebec City, QC G1V 0A6, Canada
| | - Jean-Sébastien Roy
- Center for Interdisciplinary Research in Rehabilitation and Social Integration (CIRRIS), Centre Intégré Universitaire de Santé et de Services Sociaux de la Capitale Nationale (CIUSSS-CN), Quebec City, QC G1M 2S8, Canada; (A.F.); (H.M.-A.); (M.B.); (N.G.); (I.P.); (B.G.); (J.-S.R.); (Y.M.)
- School of Rehabilitation Sciences, Faculty of Medicine, Université Laval, Quebec City, QC G1M 2X8, Canada;
| | - Younes Messaddeq
- Center for Interdisciplinary Research in Rehabilitation and Social Integration (CIRRIS), Centre Intégré Universitaire de Santé et de Services Sociaux de la Capitale Nationale (CIUSSS-CN), Quebec City, QC G1M 2S8, Canada; (A.F.); (H.M.-A.); (M.B.); (N.G.); (I.P.); (B.G.); (J.-S.R.); (Y.M.)
- Center for Optics, Photonics and Lasers (COPL), Department of Physics, Faculty of Science and Engineering, Université Laval, Quebec City, QC G1V 0A6, Canada
| | - Laurent J. Bouyer
- Center for Interdisciplinary Research in Rehabilitation and Social Integration (CIRRIS), Centre Intégré Universitaire de Santé et de Services Sociaux de la Capitale Nationale (CIUSSS-CN), Quebec City, QC G1M 2S8, Canada; (A.F.); (H.M.-A.); (M.B.); (N.G.); (I.P.); (B.G.); (J.-S.R.); (Y.M.)
- School of Rehabilitation Sciences, Faculty of Medicine, Université Laval, Quebec City, QC G1M 2X8, Canada;
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Pizol GZ, Miyamoto GC, Cabral CMN. Hip biomechanics in patients with low back pain, what do we know? A systematic review. BMC Musculoskelet Disord 2024; 25:415. [PMID: 38807086 PMCID: PMC11131240 DOI: 10.1186/s12891-024-07463-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Accepted: 04/19/2024] [Indexed: 05/30/2024] Open
Abstract
BACKGROUND Biomechanical alterations in patients with low back pain (LBP), as reduced range of motion or strength, do not appear to be exclusively related to the trunk. Thus, studies have investigated biomechanical changes in the hip, due to the proximity of this joint to the low back region. However, the relationship between hip biomechanical changes in patients with LBP is still controversial and needs to be summarized. Therefore, the aim of this study was to systematically review observational studies that used biomechanical assessments in patients with non-specific LBP. METHODS The search for observational studies that evaluated hip biomechanical variables (i.e., range of motion, kinematic, strength, and electromyography) in adults with non-specific acute, subacute, and chronic LBP was performed in the PubMed, Embase, Cinahl and Sportdiscus databases on February 22nd, 2024. Four blocks of descriptors were used: 1) type of study, 2) LBP, 3) hip and 4) biomechanical assessment. Two independent assessors selected eligible studies and extracted the following data: author, year of publication, country, study objective, participant characteristics, outcomes, and results. The methodological quality of the studies was assessed using the Epidemiological Appraisal Instrument and classified as low, moderate, and high. Due to the heterogeneity of the biomechanical assessment and, consequently, of the results among eligible studies, a descriptive analysis was performed. RESULTS The search strategy returned 338 articles of which 54 were included: nine articles evaluating range of motion, 16 evaluating kinematic, four strength, seven electromyography and 18 evaluating more than one outcome. The studies presented moderate and high methodological quality. Patients with LBP, regardless of symptoms, showed a significant reduction in hip range of motion, especially hip internal rotation, reduction in the time to perform functional activities such as sit-to-stance-to-sit, sit-to-stand or walking, greater activation of the hamstrings and gluteus maximus muscles and weakness of the hip abductor and extensor muscles during specific tests and functional activities compared to healthy individuals. CONCLUSION Patients with LBP present changes in range of motion, task execution, activation, and hip muscle strength when compared to healthy individuals. Therefore, clinicians must pay greater attention to the assessment and management of the hip during the treatment of these patients. SYSTEMATIC REVIEW REGISTRATION International Prospective Register of Systematic Reviews (PROSPERO) (CRD42020213599).
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Affiliation(s)
- Gustavo Zanotti Pizol
- Master's and Doctoral Program in Physical Therapy, Universidade Cidade de São Paulo, Rua Cesário Galeno 475, Tatuapé, Sao Paulo, SP, CEP: 03071-000, Brazil.
| | - Gisela Cristiane Miyamoto
- Master's and Doctoral Program in Physical Therapy, Universidade Cidade de São Paulo, Rua Cesário Galeno 475, Tatuapé, Sao Paulo, SP, CEP: 03071-000, Brazil
| | - Cristina Maria Nunes Cabral
- Master's and Doctoral Program in Physical Therapy, Universidade Cidade de São Paulo, Rua Cesário Galeno 475, Tatuapé, Sao Paulo, SP, CEP: 03071-000, Brazil
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Suo M, Zhou L, Wang J, Huang H, Zhang J, Sun T, Liu X, Chen X, Song C, Li Z. The Application of Surface Electromyography Technology in Evaluating Paraspinal Muscle Function. Diagnostics (Basel) 2024; 14:1086. [PMID: 38893614 PMCID: PMC11172025 DOI: 10.3390/diagnostics14111086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2024] [Revised: 05/01/2024] [Accepted: 05/07/2024] [Indexed: 06/21/2024] Open
Abstract
Surface electromyography (sEMG) has emerged as a valuable tool for assessing muscle activity in various clinical and research settings. This review focuses on the application of sEMG specifically in the context of paraspinal muscles. The paraspinal muscles play a critical role in providing stability and facilitating movement of the spine. Dysfunctions or alterations in paraspinal muscle activity can lead to various musculoskeletal disorders and spinal pathologies. Therefore, understanding and quantifying paraspinal muscle activity is crucial for accurate diagnosis, treatment planning, and monitoring therapeutic interventions. This review discusses the clinical applications of sEMG in paraspinal muscles, including the assessment of low back pain, spinal disorders, and rehabilitation interventions. It explores how sEMG can aid in diagnosing the potential causes of low back pain and monitoring the effectiveness of physical therapy, spinal manipulative therapy, and exercise protocols. It also discusses emerging technologies and advancements in sEMG techniques that aim to enhance the accuracy and reliability of paraspinal muscle assessment. In summary, the application of sEMG in paraspinal muscles provides valuable insights into muscle function, dysfunction, and therapeutic interventions. By examining the literature on sEMG in paraspinal muscles, this review offers a comprehensive understanding of the current state of research, identifies knowledge gaps, and suggests future directions for optimizing the use of sEMG in assessing paraspinal muscle activity.
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Affiliation(s)
- Moran Suo
- Department of Orthopedics, First Affiliated Hospital of Dalian Medical University, Dalian 116011, China; (M.S.); (J.W.); (H.H.); (J.Z.); (T.S.); (X.L.)
- Key Laboratory of Molecular Mechanism for Repair and Remodeling of Orthopedic Diseases, Dalian 116000, China
| | - Lina Zhou
- Department of Neurology, First Affiliated Hospital of Dalian Medical University, Dalian 116011, China;
| | - Jinzuo Wang
- Department of Orthopedics, First Affiliated Hospital of Dalian Medical University, Dalian 116011, China; (M.S.); (J.W.); (H.H.); (J.Z.); (T.S.); (X.L.)
- Key Laboratory of Molecular Mechanism for Repair and Remodeling of Orthopedic Diseases, Dalian 116000, China
| | - Huagui Huang
- Department of Orthopedics, First Affiliated Hospital of Dalian Medical University, Dalian 116011, China; (M.S.); (J.W.); (H.H.); (J.Z.); (T.S.); (X.L.)
- Key Laboratory of Molecular Mechanism for Repair and Remodeling of Orthopedic Diseases, Dalian 116000, China
| | - Jing Zhang
- Department of Orthopedics, First Affiliated Hospital of Dalian Medical University, Dalian 116011, China; (M.S.); (J.W.); (H.H.); (J.Z.); (T.S.); (X.L.)
- Key Laboratory of Molecular Mechanism for Repair and Remodeling of Orthopedic Diseases, Dalian 116000, China
| | - Tianze Sun
- Department of Orthopedics, First Affiliated Hospital of Dalian Medical University, Dalian 116011, China; (M.S.); (J.W.); (H.H.); (J.Z.); (T.S.); (X.L.)
- Key Laboratory of Molecular Mechanism for Repair and Remodeling of Orthopedic Diseases, Dalian 116000, China
| | - Xin Liu
- Department of Orthopedics, First Affiliated Hospital of Dalian Medical University, Dalian 116011, China; (M.S.); (J.W.); (H.H.); (J.Z.); (T.S.); (X.L.)
- Key Laboratory of Molecular Mechanism for Repair and Remodeling of Orthopedic Diseases, Dalian 116000, China
| | - Xin Chen
- Musculoskeletal Research Laboratory, Department of Orthopaedics & Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China;
| | - Chunli Song
- Department of Neurology, First Affiliated Hospital of Dalian Medical University, Dalian 116011, China;
| | - Zhonghai Li
- Department of Orthopedics, First Affiliated Hospital of Dalian Medical University, Dalian 116011, China; (M.S.); (J.W.); (H.H.); (J.Z.); (T.S.); (X.L.)
- Key Laboratory of Molecular Mechanism for Repair and Remodeling of Orthopedic Diseases, Dalian 116000, China
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Silva MVGD, Soares IC, Ventura SC, Kuroda MN, Gonçalves Dos Santos BG, Nogueira da Silva C, Borato LA, Pedroni CR. Trunk muscles influence lower limb performance in crossfit athletes: A cross-sectional study. PHYSIOTHERAPY RESEARCH INTERNATIONAL 2024; 29:e2040. [PMID: 37452583 DOI: 10.1002/pri.2040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 05/05/2023] [Accepted: 06/29/2023] [Indexed: 07/18/2023]
Abstract
INTRODUCTION Crossfit is a sport that combines cardio-respiratory and muscle endurance, strength, flexibility, muscle power, speed, coordination, agility and balance. However, there is no information in the literature regarding functional performance of the lower limbs and the endurance of core muscles in this population. The objective of this study was to evaluate the correlation between trunk strength/endurance and lower limb function through lower limb symmetry and balance tests. METHODS Forty-one young adults aged 19-41 years (26.3 ± 5.4) participated, 15 sedentary and 26 cross fit practitioners for at least one year. The tests were as follows: Biering-Sørensen Test of trunk extensor endurance, Trunk Flexors Endurance Test at 60°, Side Plank Endurance Test, Lumbar Dynamometry, Single-Leg Hop Test and Star Excursion Balance Test. RESULTS AND DISCUSSION Although there were higher values, there was no significant difference (p > 0.05) between the groups for lower limb symmetry and strength of trunk flexor muscles. For balance, strength and resistance variables of trunk extensor muscles, the values found were higher in crossfit practitioners than in sedentary subjects. CONCLUSION There is a relationship between trunk muscle strength and endurance and lower limb balance. Moreover, cross fit athletes showed higher values of trunk muscle strength/endurance and lower limb balance compared to sedentary adults.
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Affiliation(s)
- Maria Vitória Gonçalves da Silva
- Student of the Postgraduate Program in Human Development and Technology at São Paulo State University, Faculty of Biosciences - Campus Rio Claro, Botucatu, Brazil
| | - Isabela Cristina Soares
- Student of the Postgraduate Program in Human Development and Technology at São Paulo State University, Faculty of Biosciences - Campus Rio Claro, Botucatu, Brazil
| | - Stephanie Calde Ventura
- Student of the Postgraduate Program in Human Development and Technology at São Paulo State University, Faculty of Biosciences - Campus Rio Claro, Botucatu, Brazil
| | - Melissa Nahomi Kuroda
- Student of the Postgraduate Program in Human Development and Technology at São Paulo State University, Faculty of Biosciences - Campus Rio Claro, Botucatu, Brazil
| | | | - Caroline Nogueira da Silva
- Student of Sao Paulo State University, Faculty of Philosophy and Sciences - Campus Marília, Botucatu, Brazil
| | - Lucas André Borato
- Postgraduate Program in Physical Activity Sciences at the University of São Paulo, School of Arts, Sciences and Humanities, Botucatu, Brazil
| | - Cristiane Rodrigues Pedroni
- Professor of the Physiotherapy Degree at Sao Psaulo State University, Faculty of Philosophy and Sciences - Campus Marília, Brazil and Department of Physical Education, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, Brazil
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Hemming R, du Rose A, Sheeran L, van Deursen R, Sparkes V. Relationships between trunk muscle activation and thoraco-lumbar kinematics in non-specific chronic low back pain subgroups during a forward bending task. Gait Posture 2024; 107:96-103. [PMID: 37797443 DOI: 10.1016/j.gaitpost.2023.09.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 09/06/2023] [Accepted: 09/28/2023] [Indexed: 10/07/2023]
Abstract
BACKGROUND Trunk muscle activity and thoraco-lumbar kinematics can discriminate between non-specific chronic low back pain (NSCLBP) subgroups and healthy controls. However, research commonly focuses on lumbar kinematics, with limited understanding of relationships between kinematics and muscle activity across clinical subgroups. Similarly, the thoracic spine, whilst intuitively associated with NSCLBP, has received less attention and potential relationships between spinal regions and muscle activity requires exploration. RESEARCH QUESTION Is there a relationship between trunk muscle activation and regional thoracic and lumbar kinematics in NSCLBP subgroups during a forward bending task? METHODS Observational, case-control study. Fifty subgrouped NSCLBP motor control impairment participants (27 Flexion Pattern (FP-MCI), 23 Active Extension Pattern (AEP-MCI)) and 28 pain-free controls were evaluated using 3D motion analysis (Vicon™) and surface electromyography during a forward bending and return to upright task. Mean sagittal angles for the upper-thoracic (UTx), lower-thoracic (LTx), upper-lumbar (ULx) and lower-lumbar (LLx) regions were compared with normalised (% sub-maximal voluntary contraction) mean amplitude electromyography of bilateral transversus abdominis/internal oblique, external oblique, superficial lumbar multifidus and erector spinae (longissimus thoracis) muscles between groups. Pearson correlations were computed to assess relationships (significance p < 0.01). RESULTS AEP-MCI individuals demonstrated statistically significant relationships between superficial lumbar multifidus and ULx and LLx kinematics (-.812 to.659). FP-MCI individuals exhibited statistically significant relationships between erector spinae and superficial lumbar multifidus and LLx and LTx kinematics (-.686 to.664) in both task phases, and between external oblique and LTx during forward bending) (-.459 to.572). Correlations were moderate to strong for all significant relationships (-.812 to .664). SIGNIFICANCE Relationships between muscle activity and regional spinal kinematics varied between NSCLBP subgroups, suggesting that those with flexion- or extension-related LBP adopt different motor control strategies when performing a bending task. As effectively mechanical biomarkers, these findings may inform treatment by improving understanding of varied motor strategies in subgroups.
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Affiliation(s)
- Rebecca Hemming
- Biomechanics and Bioengineering Research Centre Versus Arthritis, School of Healthcare Sciences, Cardiff University, Cardiff CF24 0AB, Wales, UK.
| | | | - Liba Sheeran
- Biomechanics and Bioengineering Research Centre Versus Arthritis, School of Healthcare Sciences, Cardiff University, Cardiff CF24 0AB, Wales, UK.
| | - Robert van Deursen
- Biomechanics and Bioengineering Research Centre Versus Arthritis, School of Healthcare Sciences, Cardiff University, Cardiff CF24 0AB, Wales, UK.
| | - Valerie Sparkes
- Biomechanics and Bioengineering Research Centre Versus Arthritis, School of Healthcare Sciences, Cardiff University, Cardiff CF24 0AB, Wales, UK.
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Biviá-Roig G, Lisón JF, Sánchez-Zuriaga D. Biomechanical analysis of breastfeeding positions and their effects on lumbopelvic curvatures and lumbar muscle responses. APPLIED ERGONOMICS 2023; 110:104029. [PMID: 37075644 DOI: 10.1016/j.apergo.2023.104029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 04/11/2023] [Accepted: 04/14/2023] [Indexed: 05/03/2023]
Abstract
This study aimed to analyze the position of the lumbopelvic region and lumbar muscle activity in the most common breastfeeding positions. We recorded the curvatures of the lumbar spine and pelvis by means of an electrogoniometer, and the muscle activation levels of the erector spinae with electromyography, in 34 women in erect standing and breastfeeding their children in several positions. Both side lying and clutch-hold positions showed a greater degree of lumbar spine flexion compared to standing. In all sitting postures it was observed that the pelvis was placed in retroversion when compared to standing and side lying. In muscle activity, it was observed that the activation intensity of the right erector in the right side-supported side lying position was significantly lower compared to the rest of breastfeeding postures and standing. Side lying may be a better position to avoid muscle fatigue.
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Affiliation(s)
- Gemma Biviá-Roig
- Department of Nursing and Physiotherapy, Faculty of Health Sciences, University CEU-Cardenal Herrera, CEU Universities, Valencia, Spain.
| | - Juan Francisco Lisón
- Department of Biomedical Sciences, Faculty of Health Sciences, University CEU-Cardenal Herrera, CEU Universities, Valencia, Spain; CIBER of Physiopathology of Obesity and Nutrition CIBERobn, CB06/03 Carlos III Health Institute, Madrid, Spain.
| | - Daniel Sánchez-Zuriaga
- Department of Anatomy and Human Embryology, Faculty of Medicine, Universitat de València, Spain.
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Nematimoez M, Breen A, Breen A. Spatio-temporal clustering of lumbar intervertebral flexion interactions in 127 asymptomatic individuals. J Biomech 2023; 154:111634. [PMID: 37209467 DOI: 10.1016/j.jbiomech.2023.111634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 04/18/2023] [Accepted: 05/09/2023] [Indexed: 05/22/2023]
Abstract
The purpose of this study was to categorize asymptomatic participants based on the clustering of spatial and temporal intervertebral kinematic variables during lumbar flexion. Lumbar segmental interactions (L2-S1) were evaluated in 127 asymptomatic participants during flexion using fluoroscopy. First, four variables were identified consisting of: 1. Range of motion (ROMC), 2. Peaking time of the first derivative for separate segmentation (PTFDs), 3. Peaking magnitude of the first derivative (PMFD), and 4. Peaking time of the first derivative for stepwise (grouped) segmentation (PTFDss). These variables were used to cluster and order the lumbar levels. The number of participants required to constitute a cluster was chosen as 7. Participants formed eight (ROMC), four (PTFDs), eight (PMFD), and four (PTFDss) clusters, which included 85%, 80%, 77%, and 60% of them, respectively, according to the above features. For all clustering variables, angle time series of some lumbar levels showed significant differences between clusters. However, in general, all clusters could be categorized based on the segmental mobility contexts into three main groups as incidental macro clusters: the upper (L2-L4 > L4-S1), middle (L2-L3 < L3-L5 > L5-S1) and lower (L2-L4 < L4-S1) domains. There are spatial and temporal segmental interactions and between-subject variability in asymptomatic participants. In addition, the differences in angle time series among the clusters have provided evidence of feedback control strategies, while the stepwise segmentation facilitates consideration of the lumbar spine as a system and provides supplementary information about segmental interactions. Clinically, these facts could be taken into account when considering any intervention, but especially fusion surgery.
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Affiliation(s)
| | - Alexander Breen
- Faculty of Science and Technology, Bournemouth University, Poole BH12 5BB, UK
| | - Alan Breen
- Faculty of Science and Technology, Bournemouth University, Poole BH12 5BB, UK
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Villatoro-Luque FJ, Rodríguez-Almagro D, Aibar-Almazán A, Fernández-Carnero S, Pecos-Martín D, Ibáñez-Vera AJ, Achalandabaso-Ochoa A. In non-specific low back pain, is an exercise program carried out through telerehabilitation as effective as one carried out in a physiotherapy center? A controlled randomized trial. Musculoskelet Sci Pract 2023; 65:102765. [PMID: 37141771 DOI: 10.1016/j.msksp.2023.102765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 04/13/2023] [Accepted: 04/17/2023] [Indexed: 05/06/2023]
Abstract
BACKGROUND s:The effectiveness of telerehabilitation (TLRH) in patients with non-specific low back pain (NLBP) remains unknown. No study till date has investigated the efficacy of a mobile-based TLRH in patients with NLBP. OBJECTIVES To investigate if a TLRH program is as effective as a clinical exercise programme in improving disability, pain intensity, pain catastrophizing, and hip pain and strength in patients with NLBP. DESIGN Single-blind, two-armed, randomized controlled study. METHOD A total of 71 individuals with NLBP were randomly allocated to either the TLRH home group (TLRH) or clinic group (CG). The TLRH followed exercise videos and read information on pain neurophysiology. The CG performed the same exercises and received on-site pain education. Both groups performed the exercises twice weekly for 8 weeks. Disability, pain intensity, pain catastrophizing, and hip pain and strength were assessed at baseline, at post-treatment, and at three months. RESULTS Statistically significant differences for time-by-group interaction were detected in the strength of left hip flexors (supine [F = 8.356; p = .005]; sitting [F = 9.828; p = .003]), right hip extensors with extended knee [F = 7.461; p = .008], left hip extensors (extended knee [F = 13.175; p = .001]; flexed knee [F = 13.505; p < .001]), pain during flexion of the right [F = 5.133; p = .027] and left [F = 4.731; p = .033] hips in the supine position, disability [F = 4.557; p = .014], and pain catastrophizing [F = 14.132; p < .001]. CONCLUSION A TLRH mobile-based is as effective as clinical treatment in improving disability, pain catastrophizing, and pain and strength of the hip structures in patients with NLBP.
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Affiliation(s)
| | | | - Agustín Aibar-Almazán
- Department of Health Sciences, Faculty of Health Sciences, University of Jaén, Spain
| | - Samuel Fernández-Carnero
- Physiotherapy and Pain Group, Department of Physical Therapy, University of Alcala, Madrid, Spain
| | - Daniel Pecos-Martín
- Physiotherapy and Pain Group, Department of Physical Therapy, University of Alcala, Madrid, Spain
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TÜRKMEN C, ÖZCAN A, KARAHAN Z, BOZKURT İ. Reciprocal activation changes of lower extremity muscles caused by the abdominal hollowing maneuver in patients with unilateral lumbar disc herniation: an EMG study. JOURNAL OF HEALTH SCIENCES AND MEDICINE 2023. [DOI: 10.32322/jhsm.1193371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Introduction: Decreased or delayed multifidus and transversus abdominis (TrA) activity, transition of the TrA from tonic to phasic activity, and increased activity in the more superficial erector spinae muscles are behaviors unique to people with lumbar radiculopathy. The aim of this study was to investigate whether the isolated AHM could compensate for functional impairments caused by tibialis anterior (TA) muscle weakness due to unilateral L4-L5 radiculopathy.
Material and Method: The healthy and affected lower extremities of seventeen patients with unilateral lumbar disc herniation were analyzed. The ratio of TA and medial gastrocnemius (MGC) values that emerged during the activities to the maximum voluntary isometric contraction (MVIC) values of these muscles was called MVIC%. Then the MVIC% values of the TA and MGC were matched and the muscle reciprocal activation ratio was determined ("MVIC%"-TA/"MVIC%"-MGC). While the activities were being performed, the MVIC% values of both muscles were measured separately without performing the AHM and during the AHM.
Results: During the tandem walking activity performed with the AHM, the reciprocal activation rates of TA:MGC on the affected and healthy legs converged (p=0.010,d=0.71).
Conclusion: According to the results of the study, integration of the AHM into tandem walking activity brought the reciprocal activation rates of both legs closer to each other and enabled them to exhibit similar behaviors, even without adherence to any exercise protocol. Therefore, tandem walking can be selected as an appropriate activity to combine with spinal stabilization exercises performed by unilateral L4-L5 radiculopathy patients using the AHM along with the task.
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Affiliation(s)
- Ceyhun TÜRKMEN
- CANKIRI KARATEKIN UNIVERSITY, FACULTY OF HEALTH SCIENCES
| | - Ayşenur ÖZCAN
- CANKIRI KARATEKIN UNIVERSITY, FACULTY OF HEALTH SCIENCES
| | - Zehra KARAHAN
- CANKIRI KARATEKIN UNIVERSITY, FACULTY OF HEALTH SCIENCES
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The influence of hip extensor and lumbar spine extensor strength on lumbar spine loading during a squat lift. J Electromyogr Kinesiol 2021; 62:102620. [PMID: 34844059 DOI: 10.1016/j.jelekin.2021.102620] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 10/26/2021] [Accepted: 11/13/2021] [Indexed: 11/20/2022] Open
Abstract
Weakness of the hip extensors and lumbar spine extensors has been proposed to contribute to greater demands on the lumbar spine during lifting. The purpose of the current study was to examine the associations among strength of the hip and lumbar spine extensors, lumbar spine extensor moments and lumbar paraspinal muscle activation during a squat lift task. Twenty-seven healthy females participated. Strength of the hip and lumbar spine extensors was measured using a dynamometer. Lumbar spine moments and lumbar paraspinal muscle activity were quantified during the concentric phase of the squat lifting task. There was a significant positive association between lumbar extensor strength and average lumbar extensor moment during lifting (r = 0.498, p = 0.008). Similarly, hip extensor strength was positively associated with the average lumbar extension moment (r = 0.382, p = 0.049). Hip extensor strength was negatively associated with activation of the lumbar paraspinal muscles during lifting (ρ = -0.382, p = 0.049). Stronger individuals are more likely to use their hip extensors and lumbar spine extensors to perform a squat lift task. In contrast, those with lower strength employ subtle biomechanical changes to reduce lumbar spine demand.
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Chou SH, Lin SY, Shen PC, Tu HP, Huang HT, Shih CL, Lu CC. Pain Control Affects the Radiographic Diagnosis of Segmental Instability in Patients with Degenerative Lumbar Spondylolisthesis. J Clin Med 2021; 10:3984. [PMID: 34501429 PMCID: PMC8432229 DOI: 10.3390/jcm10173984] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 08/30/2021] [Accepted: 08/30/2021] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Diagnosing intervertebral instability is crucial for the treatment of degenerative lumbar spondylolisthesis (DLS). Disabling back pain will reduce spinal mobility which leads to an underestimate of the incidence of intervertebral instability. We hypothesized that adequate analgesia could alter the flexion/extension exam performance, and thus increase the diagnostic accuracy of segmental instability. MATERIALS AND METHODS One hundred patients with low-grade DLS were prospectively enrolled in the before-after cohort study. Standing lateral flexion/extension radiographs of lumbar spines were examined and analyzed before and after intramuscular injections of 30 mg ketorolac. RESULTS Pain score decreased significantly after analgesic injections (p < 0.001). Dynamic slip (DS), dynamic segmental angle (DA), dynamic lumbar lordosis, and slip percentage (SP) were significantly increased after pain reduction (all p < 0.001). According to the diagnostic criteria for segmental instability (DS > 4.5 mm, DA > 15°, or SP > 15%), there were 4%, 4%, and 0.7% of total motion segments fulfilling the criteria which markedly increased to 42%, 32%, and 16.7% after analgesia was administered. The incidence of instability also increased from 6% to 38% after analgesia. CONCLUSIONS The diagnosis rate of intervertebral instability is commonly underestimated in the presence of low back pain. This short-term pain relief facilitates reliable functional imaging adding to the diagnosis of intervertebral instability.
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Affiliation(s)
- Shih-Hsiang Chou
- Department of Orthopaedics, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (S.-H.C.); (S.-Y.L.); (P.-C.S.); (H.-T.H.)
- Orthopaedic Research Centre, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Sung-Yen Lin
- Department of Orthopaedics, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (S.-H.C.); (S.-Y.L.); (P.-C.S.); (H.-T.H.)
- Orthopaedic Research Centre, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Orthopaedics, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Po-Chih Shen
- Department of Orthopaedics, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (S.-H.C.); (S.-Y.L.); (P.-C.S.); (H.-T.H.)
- Orthopaedic Research Centre, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Hung-Pin Tu
- Department of Public Health and Environmental Medicine, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan;
| | - Hsuan-Ti Huang
- Department of Orthopaedics, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (S.-H.C.); (S.-Y.L.); (P.-C.S.); (H.-T.H.)
- Orthopaedic Research Centre, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Orthopaedics, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Chia-Lung Shih
- Clinical Medicine Research Center, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chia-Yi City 600, Taiwan;
| | - Cheng-Chang Lu
- Department of Orthopaedics, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (S.-H.C.); (S.-Y.L.); (P.-C.S.); (H.-T.H.)
- Orthopaedic Research Centre, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Orthopaedics, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Orthopaedics, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
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Inter-joint coordination and the flexion-relaxation phenomenon among adults with low back pain during bending. Gait Posture 2021; 85:164-170. [PMID: 33581560 DOI: 10.1016/j.gaitpost.2021.02.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 01/11/2021] [Accepted: 02/01/2021] [Indexed: 02/02/2023]
Abstract
BACKGROUND Altered inter-joint coordination and reduced flexion-relaxation at end-range trunk flexion are common in people with low back pain. Inconsistencies in these behaviors, however, make assessment and treatment challenging for this population. RESEARCH QUESTION The study objective was to investigate patterns of regional lumbo-pelvic coordination and flexion-relaxation in adults with and without low back pain, during a bending task. METHODS Adults with low back pain (n = 16) and a healthy group (n = 21) performed three trials of a bending task. Motion capture and surface electromyography systems measured joint kinematics (hip, lower and upper lumbar spine) and muscle activity (erector spinae longissimus, iliocostalis, and multifidus). Continuous relative phase analysis determined inter-joint coordination of the hip/lower lumbar and lower lumbar/upper lumbar joint pairs, during flexion and extension periods. Flexion-relaxation ratios using normalized surface electromyography data determined the extent of flexion-relaxation for each muscle, during each period. For inter-joint coordination, two-way repeated measure mixed ANOVAs calculated the effects of group (healthy/low back pain), period, and their interactions. Separate hierarchical linear models were constructed and tested relationships between flexion-relaxation ratios and our independent variables, group and muscle, while controlling for patient characteristics. RESULTS The low back pain group had more out-of-phase coordination of the hip/lower lumbar joint pair compared to the healthy group (mean difference = 24.7°; 95 % confidence interval = 3.93-45.4), independent of movement period. No significant between group differences in lower lumbar/upper lumbar coordination were observed. The low back pain group demonstrated reduced flexion-relaxation of all muscles during full flexion (21.7 % reduction on average), with multifidus showing the least relaxation. SIGNIFICANCE Regional differences in the lumbar spine and the possibility of subgroups with distinct movement pattern should be considered when analyzing coordination in people with low back pain. Multifidus showed the largest changes in flexion-relaxation and should be included when measuring this construct.
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de Brito Macedo L, Borges DT, Melo SA, da Costa KSA, de Oliveira Sousa C, Brasileiro JS. Reliability and concurrent validity of a mobile application to measure thoracolumbar range of motion in low back pain patients. J Back Musculoskelet Rehabil 2020; 33:145-151. [PMID: 31127756 DOI: 10.3233/bmr-181396] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Smartphone devices have been used to measure range of motion (ROM) in different joints. OBJECTIVE To verify the concurrent validity of thoracolumbar ROM using a mobile application and a digital inclinometer, as well as the intrarater reliability of individuals with and without back pain. METHODS One investigator was responsible for measuring the ROM during the evaluations performed on 20 asymptomatic subjects and 20 symptomatic subjects in two consecutive days. RESULTS Regarding to the concurrent validity, the Intraclass Correlation Coefficients (ICC) were classified as very good for all analyzed movements. For intrarater reliability, the mobile application had ICC varying between good and very good for the symptomatic subjects and very good for asymptomatic subjects. CONCLUSIONS The mobile application may be considered a valid and reliable tool to assess thoracolumbar ROM for both asymptomatic and chronic low back pain subjects.
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Changes in the Flexion-Relaxation Response After Percutaneous Endoscopic Lumbar Discectomy in Patients with Disc Herniation. World Neurosurg 2019; 125:e1042-e1049. [DOI: 10.1016/j.wneu.2019.01.238] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Revised: 01/22/2019] [Accepted: 01/23/2019] [Indexed: 11/30/2022]
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Winder B, Keri PA, Weberg DE, Beneck GJ. Postural cueing increases multifidus activation during stabilization exercise in participants with chronic and recurrent low back pain: An electromyographic study. J Electromyogr Kinesiol 2019; 46:28-34. [PMID: 30878650 DOI: 10.1016/j.jelekin.2019.03.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 02/01/2019] [Accepted: 03/08/2019] [Indexed: 11/27/2022] Open
Abstract
Persons with low back pain (LBP) have demonstrated altered morphology and function of the deep multifidus (DM). This study examined the effects of postural cueing for increased lumbar lordosis on DM and longissimus thoracis (LT) activation during lumbar stabilization exercises (LSE) performed by persons with LBP. Nine adults with a history of chronic or recurrent LBP were recruited. Fine-wire EMG data was collected while participants performed 10 LSE's in neutral posture and with postural cueing. Percent maximum voluntary isometric contraction of L5 DM and T12 LT, and ratios of activation (DM/LT) were analyzed. There was a significant main effect for posture on DM activation (p < 0.001), indicating greater activation levels during exercises performed with postural cueing vs. neutral posture. LT activation did not increase significantly with postural cueing. Following a significant 1-way repeated measures ANOVA (p = 0.034) for the postural cueing condition, pairwise comparisons demonstrated significantly higher DM/LT activation ratios for prone leg lift, variable-angle Roman chair at 15°, bridging, and bilateral arm and leg lift. These results suggest postural cueing can be used across a range of LSE intensities to increase DM activation without a significant increase in LT activation in patients with chronic or recurrent LBP.
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Affiliation(s)
- Brooke Winder
- California State University, Long Beach, Department of Physical Therapy, 1250 N. Bellflower Blvd., Long Beach, CA 90840-7201, United States.
| | - Paul A Keri
- California State University, Long Beach, Department of Physical Therapy, 1250 N. Bellflower Blvd., Long Beach, CA 90840-7201, United States
| | - David E Weberg
- California State University, Long Beach, Department of Physical Therapy, 1250 N. Bellflower Blvd., Long Beach, CA 90840-7201, United States
| | - George J Beneck
- California State University, Long Beach, Department of Physical Therapy, 1250 N. Bellflower Blvd., Long Beach, CA 90840-7201, United States
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Biviá-Roig G, Lisón JF, Sánchez-Zuriaga D. Effects of pregnancy on lumbar motion patterns and muscle responses. Spine J 2019; 19:364-371. [PMID: 30144534 DOI: 10.1016/j.spinee.2018.08.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 08/10/2018] [Accepted: 08/15/2018] [Indexed: 02/03/2023]
Abstract
BACKGROUND CONTEXT The kinematics of the lumbar region and the activation patterns of the erector spinae muscle have been associated with the genesis of low back pain, which is one of the most common complications associated with pregnancy. Despite the high prevalence of pregnancy-related low back pain, the biomechanical adaptations of the lumbar region during pregnancy remain unknown. PURPOSE This study analyzes lumbar spine motion and the activation pattern of the lumbar erector spinae muscle in healthy pregnant women. STUDY DESIGN A case-control study. PATIENT SAMPLE The study involved 34 nulliparous women (control group) and 34 pregnant women in the third trimester (week 36 ± 1). OUTCOME MEASURES We recorded the parameters of angular displacement of the lumbar spine in the sagittal plane during trunk flexion-extension, and the EMG activity of the erector spinae muscles during flexion, extension, eccentric and concentric contractions, and the myolectrical silence. METHODS The participants performed several series of trunk flexion-extension movements, which were repeated 2 months postpartum. The position of the lumbar spine was recorded using an electromagnetic motion capture system. EMG activity was recorded by a surface EMG system and expressed as a percentage of a submaximal reference contraction. RESULTS Antepartum measurements showed a decrease (relative to control and postpartum measurements) in lumbar maximum flexion (52.5 ± 10.5° vs 57.3 ± 7.7° and 58.7 ± 8.6°; p < .01), the percentage of lumbar flexion during forward bending (56.4 ± 5.6% vs 59.4 ± 6.8% and 59.7 ± 5.6%; p < .01), and the time keeping maximum levels of lumbar flexion (35.7 ± 6.7% vs 43.8 ± 5.3% and 50.1 ± 3.7%; p < .01). Higher levels of erector spinae activation were observed in pregnant women during forward bending (10.1 ± 4.8% vs 6.3 ± 2.4% and 6.6 ± 2.7%; p < .01) and eccentric contraction (12.1 ± 5.2% vs 9.4 ± 3.1% and 9.1 ± 2.9%; p < .01), as well as a shortened erector spinae myoelectric silence during flexion. CONCLUSIONS Pregnant women show adaptations in their patterns of lumbar motion and erector spinae activity during trunk flexion-extension. These changes could be associated with the genesis of pregnancy-related low back pain, by means of biomechanical protection mechanisms against the increase on abdominal mass and ligamentous laxity.
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Affiliation(s)
- Gemma Biviá-Roig
- Department of Physiotherapy, Faculty of Health Sciences, Universidad Cardenal Herrera-CEU, CEU Universities, Calle Ramón y Cajal s/n, Alfara del Patriarca, 46115 Valencia, Spain
| | - Juan Francisco Lisón
- Department of Medicine, Faculty of Health Sciences, Universidad Cardenal Herrera-CEU, CEU Universities, Calle Ramón y Cajal s/n, Alfara del Patriarca, 46115 Valencia, Spain
| | - Daniel Sánchez-Zuriaga
- Department of Anatomy and Human Embryology, Facultat de Medicina i Odontologia, Universitat de València, Av Blasco Ibáñez, 15, 46010 València, Spain.
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Wei J, Zhu HB, Wang F, Fan Y, Zhou HJ. Clinical utility of flexion-extension ratio measured by surface electromyography for patients with nonspecific chronic low-back pain. J Chin Med Assoc 2019; 82:35-39. [PMID: 30839401 DOI: 10.1097/jcma.0000000000000004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Patients with chronic nonspecific low-back pain (CNSLBP) lack the flexion-relaxation phenomenon in full-trunk bending. This can be quantified by surface electromyography (SEMG) measurement of lumbar erector muscle. The study objective is to explore the clinical utility of the SEMG flexion-extension ratio (FER) in distinguishing patients with CNSLBP from painfree persons. METHODS This was a comparative cross-sectional study. We adopted a balanced study design by recruiting 130 participants each for the CNSLBP and control arms. Each participant underwent dynamic SEMG measurement in full-trunk bending, which consisted of standing, flexion, relaxation, and extension. The FER ratio was the ratio of the maximum SEMG in flexion to the maximum SEMG during extension. Receiver-operating characteristic (ROC) analysis was conducted to identify optimal values of the FER and associated sensitivity, specificity, and diagnostic accuracy. RESULTS The CNSLBP group and control group were generally comparable in terms of demographics and clinical profile. The CNSLBP group had higher SEMG amplitudes during flexion but lower SEMG during extension. The mean (SD) FER of the CNSLBP group was 0.90 (0.26), which was almost double that of controls 0.47 (0.14). The ROC curve identified an optimal FER cutoff of ≥ 0.692, for which sensitivity and specificity were 76.15% (95%confidence interval [CI], 68.14-82.66) and 98.46% (95%CI, 94.56-99.58). The diagnostic accuracy was 92.1% (95%CI, 88.70-95.54). CONCLUSION The FER derived by lumbar muscle SEMG is able to distinguish patients with CNSLBP from pain-free people with excellent accuracy. This provides good evidence that a customized FER can be used in various clinical scenarios.
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Affiliation(s)
- Jie Wei
- Department of Chirotherapy, General Hospital of the Air Force, Beijing, China
| | - Hai-Bei Zhu
- Pain Management Centre, Department of Anaesthesiology, Singapore General Hospital, Singapore
| | - Fei Wang
- Department of Chirotherapy, General Hospital of the Air Force, Beijing, China
| | - Yu Fan
- Department of Chirotherapy, General Hospital of the Air Force, Beijing, China
| | - Hui-Jun Zhou
- Chronic Disease Epidemiology, Central Regional Health Office, Group Corporate Development & Operations, National Healthcare Group, Singapore
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du Rose A, Breen A, Breen A. Relationships between muscle electrical activity and the control of inter-vertebral motion during a forward bending task. J Electromyogr Kinesiol 2018; 43:48-54. [PMID: 30237131 DOI: 10.1016/j.jelekin.2018.08.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 08/08/2018] [Accepted: 08/21/2018] [Indexed: 10/28/2022] Open
Abstract
Muscle strengthening exercises are commonly used in primary care for the treatment of chronic, non-specific low back pain (CNSLBP) as it has been theorised that increased muscle activity contributes to the stabilisation of inter-vertebral motion segments during bending and other spinal movements, however this has never been demonstrated in vivo. This study used contemporaneous quantitative fluoroscopy (QF) and surface electromyography (sEMG) to investigate relationships between continuous inter-vertebral motion variables and muscle electrical activity in the lumbar multifidus (LMU), lumbar and thoracic erector spinae (LES and TES) during standardised lumbar flexion and return in 18 healthy male human subjects. Our results demonstrated that the variability in the sharing of angular motion (i.e. Motion Share Variability MSV) and motion segment laxity during a bending task were significantly (p < 0.05) negatively correlated (Spearman) with muscle electrical activity throughout the participant bend for both locally and globally acting muscle groups. MSV was also strongly correlated with L2-3 laxity. The former suggests a damping mechanism reducing irregular displacements (i.e. less variability in the sharing of segmental motion) during bending and an action of spinal stabilisation by muscles at segmental levels, and the latter a synergy between laxity at L2-3 and MSV. While this has previously been theorised, it has never been shown in vivo at the inter-vertebral level. These assessments may be considered for use in validation studies of exercise programs for CNSLBP, however further replication is required.
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Affiliation(s)
- Alister du Rose
- University of South Wales, Treforest, Pontypridd, Wales CF37 1DL, UK.
| | - Alex Breen
- AECC University College, Bournemouth, Dorset, England BH52DF, UK
| | - Alan Breen
- AECC University College, Bournemouth, Dorset, England BH52DF, UK
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du Rose A. Have Studies that Measure Lumbar Kinematics and Muscle Activity Concurrently during Sagittal Bending Improved Understanding of Spinal Stability and Sub-System Interactions? A Systematic Review. Healthcare (Basel) 2018; 6:healthcare6030112. [PMID: 30205578 PMCID: PMC6163188 DOI: 10.3390/healthcare6030112] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 08/15/2018] [Accepted: 09/07/2018] [Indexed: 11/26/2022] Open
Abstract
In order to improve understanding of the complex interactions between spinal sub-systems (i.e., the passive (ligaments, discs, fascia and bones), the active (muscles and tendons) and the neural control systems), it is necessary to take a dynamic approach that incorporates the measurement of multiple systems concurrently. There are currently no reviews of studies that have investigated dynamic sagittal bending movements using a combination of electromyography (EMG) and lumbar kinematic measurements. As such it is not clear how understanding of spinal stability concepts has advanced with regards to this functional movement of the spine. The primary aim of this review was therefore to evaluate how such studies have contributed to improved understanding of lumbar spinal stability mechanisms. PubMed and Cochrane databases were searched using combinations of the keywords related to spinal stability and sagittal bending tasks, using strict inclusion and exclusion criteria and adhering to PRISMA guidelines. Whilst examples of the interactions between the passive and active sub-systems were shown, typically small sample sizes meant that results were not generalizable. The majority of studies used regional kinematic measurements, and whilst this was appropriate in terms of individual study aims, the studies could not provide insight into sub-system interaction at the level of the spinal motion segment. In addition, the heterogeneity in methodologies made comparison between studies difficult. The review suggests that since Panjabi’s seminal spinal control papers, only limited advancement in the understanding of these theories has been provided by the studies under review, particularly at an inter-segmental level. This lack of progression indicates a requirement for new research approaches that incorporate multiple system measurements at a motion segment level.
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Affiliation(s)
- Alister du Rose
- Faculty of Life Sciences and Education, University of South Wales, Treforest, Pontypridd, Wales CF37 1DL, UK.
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Pool-Goudzwaard A, Groeneveld W, Coppieters MW, Waterink W. Changes in spontaneous overt motor execution immediately after observing others' painful action: two pilot studies. Exp Brain Res 2018; 236:2333-2345. [PMID: 29876631 PMCID: PMC6061486 DOI: 10.1007/s00221-018-5290-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 05/15/2018] [Indexed: 11/05/2022]
Abstract
Research has demonstrated that motor control is directly influenced by observation of others’ action, stimulating the mirror neuron system. In addition, there is evidence that both emotion and empathy after observing a painful stimulus affects motor cortical excitability and reaction times. Aim of the present two pilot studies is a) to test for significant influence of observing other’s painful bending of the trunk on execution of the same activity in a self-directed bending action (study 1) and to compare these results with a bending action according to a strict bending protocol (study 2). In addition to study 1, differences between Low Back Pain (LBP) patients versus healthy subjects are tested. Video footage of a (1) neutral, (2) painful, and (3) happy bending action was presented in random order. Changes in flexion–relaxation phenomenon (FRP) of back muscles were studied directly after watching the videos with surface EMG, in study 1 during a self-directed bending action in LBP patients and healthy subjects, in study 2 according to a strict bending protocol. FRP ratios were calculated by a custom-made analysis scheme tested for sufficient reliability prior to both studies. Evoked emotions were measured with an Emotional Questionnaire after each video. A Mixed Model ANOVA was used to test for the effect video and the difference between LBP and healthy subjects on the FRP-rs. Differences in evoked emotion will be tested with a Wilcoxon Signed Rank Test. In study 1, 24 healthy controls and 16 LBP patients FRP-rs were significantly influenced after observing a painful video in all subjects versus a happy and neutral video (p = 0.00). No differences were present between LBP and healthy controls. All subjects experienced more fear after observation of the painful video (p 0.05). In study 2, 6 healthy subjects followed the strict FRP bending protocol for three times after observing each video. No significant changes occurred in FRPs per video compared to FRPs of six healthy subjects carrying out the spontaneous bending activity. Observing a painful action in another person changes motor performance and increases fear in both people with and without back pain, during self-directed trunk flexion, but not during a protocolled trunk flexion.
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Affiliation(s)
- Annelies Pool-Goudzwaard
- Amsterdam Movement Sciences, Faculty of Behaviour and Movement Sciences, Vrije Universiteit Amsterdam, Van der Boechorststraat 7, 1081BT, Amsterdam, The Netherlands. .,Somt University of Physiotherapy, Amersfoort, The Netherlands.
| | - Wim Groeneveld
- Department of Neuroscience, Faculty of Health Sciences and Medicine, ErasmusMC University, Rotterdam, The Netherlands
| | - Michel W Coppieters
- Amsterdam Movement Sciences, Faculty of Behaviour and Movement Sciences, Vrije Universiteit Amsterdam, Van der Boechorststraat 7, 1081BT, Amsterdam, The Netherlands.,Menzies Health Institute Queensland, Griffith University, Gold Coast, Australia.,School of Health and Rehabilitation Sciences, The University of Queensland, Brisbane, Australia
| | - Wim Waterink
- Faculty of Psychology and Educational Sciences, Open University of the Netherlands, Heerlen, The Netherlands
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Zawadka M, Skublewska-Paszkowska M, Gawda P, Lukasik E, Smolka J, Jablonski M. What factors can affect lumbopelvic flexion-extension motion in the sagittal plane?: A literature review. Hum Mov Sci 2018; 58:205-218. [DOI: 10.1016/j.humov.2018.02.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2017] [Revised: 02/13/2018] [Accepted: 02/15/2018] [Indexed: 10/17/2022]
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Biviá-Roig G, Lisón JF, Sánchez-Zuriaga D. Changes in trunk posture and muscle responses in standing during pregnancy and postpartum. PLoS One 2018; 13:e0194853. [PMID: 29584774 PMCID: PMC5870985 DOI: 10.1371/journal.pone.0194853] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 03/12/2018] [Indexed: 12/01/2022] Open
Abstract
The aim of this study was to analyze the position of the lumbopelvic region and the muscle activation of erector spinae and biceps femoris muscles in a group of pregnant women in the third trimester. The hypothesis was that pregnancy-related biomechanical and morphological changes modify the position of the lumbopelvic region and the activation of extensor muscles. The position of the lumbar spine and pelvis in the sagittal plane, and the EMG activity of the erector spinae and biceps femoris muscles, were recorded during standing in 34 nulliparous and 34 pregnant women in the third trimester, and also two months after birth in the group of pregnant women. No significant differences in the position of the lumbar spine or pelvis between the group of pregnant women and nulliparous or postpartum were observed. A significant increase was observed in the EMG activity of the erector spinae (4.6% vs 2.4% and 2.1% in the nulliparous group and postpartum respectively) and the biceps femoris (3.4% vs 1.2% and 1.4%) in pregnant women compared to the other two groups (p <0.01). We conclude that pregnant women in the third trimester show no alterations in lumbopelvic position compared to nulliparous and postpartum women. However, there is an increase of the EMG activity of the trunk extensors. These results indicate that the extensor muscles of the trunk show, in static positions, adaptive responses to the increase of anterior loads during pregnancy.
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Affiliation(s)
- Gemma Biviá-Roig
- Department of Physiotherapy, Faculty of Health Sciences, University CEU-Cardenal Herrera, Valencia, Spain
| | - Juan Francisco Lisón
- Department of Medicine, Faculty of Health Sciences, University CEU-Cardenal Herrera, Valencia, Spain
| | - Daniel Sánchez-Zuriaga
- Department of Anatomy and Human Embryology, Faculty of Medicine, Universitat de València, Valencia, Spain
- * E-mail:
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Monie AP, Price RI, Lind CRP, Singer KP. Structure-Specific Movement Patterns in Patients With Chronic Low Back Dysfunction Using Lumbar Combined Movement Examination. J Manipulative Physiol Ther 2017; 40:340-349. [PMID: 28413117 DOI: 10.1016/j.jmpt.2017.02.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2015] [Revised: 12/21/2015] [Accepted: 02/04/2016] [Indexed: 11/26/2022]
Abstract
OBJECTIVE A test-retest cohort study was conducted to assess the use of a novel computer-aided, combined movement examination (CME) to measure change in low back movement after pain management intervention in 17 cases of lumbar spondylosis. Additionally we desired to use a CME normal reference range (NRR) to compare and contrast movement patterns identified from 3 specific structural pathologic conditions: intervertebral disc, facet joint, and nerve root compression. METHODS Computer-aided CME was used before and after intervention, in a cohort study design, to record lumbar range of movement along with pain, disability, and health self-report questionnaires in 17 participants who received image-guided facet, epidural, and/or rhizotomy intervention. In the majority of cases, CME was reassessed after injection together with 2 serial self-reports after an average of 2 and 14 weeks. A minimal clinically important difference of 30% was used to interpret meaningful change in self-reports. A CME NRR (n = 159) was used for comparison with the 17 cases. Post hoc observation included subgrouping cases into 3 discrete pathologic conditions, intervertebral disc, facet dysfunction, and nerve root compression, in order to report intergroup differences in CME movement. RESULTS Seven of the 17 participants stated that a "combined" movement was their most painful CME direction. Self-report outcome data indicated that 4 participants experienced significant improvement in health survey, 5 improved by ≥30% on low back function, and 8 reported that low back pain was more bothersome than stiffness, 6 of whom achieved the minimal clinically important difference for self-reported pain. Subgrouping of cases into structure-specific groups provided insight to different CME movement patterns. CONCLUSION The use of CME assists in identifying atypical lumbar movement relative to an age and sex NRR. Data from this study, exemplified by representative case studies, provide preliminary evidence for distinct intervertebral disc, facet joint, and nerve root compression CME movement patterns in cases of chronic lumbar spondylosis.
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Affiliation(s)
- Aubrey P Monie
- Centre for Musculoskeletal Studies, School of Surgery, The University of Western Australia, Crawley, Australia.
| | - Roger I Price
- Department of Medical Technology and Physics, Sir Charles Gairdner Hospital, Perth, Western Australia, Australia
| | - Christopher R P Lind
- Department of Neurosurgery, Sir Charles Gairdner Hospital, Perth, Western Australia, Australia
| | - Kevin P Singer
- Centre for Musculoskeletal Studies, School of Surgery, The University of Western Australia, Crawley, Australia
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Hip and Lumbar Spine Physical Examination Findings in People Presenting With Low Back Pain, With or Without Lower Extremity Pain. J Orthop Sports Phys Ther 2017; 47:163-172. [PMID: 28158964 PMCID: PMC8898168 DOI: 10.2519/jospt.2017.6567] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Study Design Prospective cohort study, cross-sectional design. Background The hip-spine syndrome is described in patients with known arthritis of the hip. This study describes the hip examination findings of people presenting with low back pain (LBP). Objectives To (1) report examination findings of the hip in patients with LBP and (2) compare pain and function in patients with positive hip examination findings to those in patients without positive hip examination findings. Methods An examination and validated questionnaires of spine and hip pain and function were completed. Pain and function scores were compared between patients with and without positive hip findings. Results Consecutive patients (68 women, 33 men) with a mean age of 47.6 years (range, 18.4-79.8 years) participated. On physical examination, 81 (80%) had reduced hip flexion; 76 (75%) had reduced hip internal rotation; and 25 (25%) had 1, 32 (32%) had 2, and 23 (23%) had 3 positive provocative hip tests. Patients with reduced hip flexion had worse LBP-related (mean modified Oswestry Disability Index, 35.3 versus 25.6; P = .04) and hip-related function (mean modified Harris Hip Score, 66.0 versus 82.0; P = .03). Patients with reduced hip internal rotation had worse LBP-related function (mean Roland-Morris questionnaire, 12.4 versus 8.2; P = .003). A positive provocative hip test was coupled with more intense pain (median, 9 versus 7; P = .05) and worse LBP-related (mean Roland-Morris questionnaire, 12.1 versus 8.5; P = .02) and hip-related function (mean modified Harris Hip Score, 65.8 versus 89.7; P = .005). Conclusion Physical examination findings indicating hip dysfunction are common in patients presenting with LBP. Patients with LBP and positive hip examination findings have more pain and worse function compared to patients with LBP but without positive hip examination findings. Level of Evidence Symptom prevalence, level 1b. J Orthop Sports Phys Ther 2017;47(3):163-172. Epub 3 Feb 2017. doi:10.2519/jospt.2017.6567.
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Effect of the Abdominal Hollowing and Bracing Maneuvers on Activity Pattern of the Lumbopelvic Muscles During Prone Hip Extension in Subjects With or Without Chronic Low Back Pain: A Preliminary Study. J Manipulative Physiol Ther 2016; 40:106-117. [PMID: 28017604 DOI: 10.1016/j.jmpt.2016.10.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Revised: 09/25/2016] [Accepted: 10/11/2016] [Indexed: 11/20/2022]
Abstract
OBJECTIVE The purpose of this study was to compare the effect of abdominal hollowing (AH) and abdominal bracing (AB) maneuvers on the activity pattern of lumbopelvic muscles during prone hip extension (PHE) in participants with or without nonspecific chronic low back pain (CLBP). METHODS Twenty women with or without CLBP participated in this cross-sectional observational study. The electromyographic activity (amplitude and onset time) of the contralateral erector spinae (CES), ipsilateral erector spinae (IES), gluteus maximus, and biceps femoris muscles was measured during PHE with and without abdominal maneuvers. A 3-way mixed model analysis of variance and post hoc tests were used for statistical analysis. RESULTS Between-group comparisons showed that the CES onset delay during PHE alone was greater (P = .03) and the activity level of IES, CES, and biceps femoris in all maneuvers (P < .05) was higher in patients with CLBP than in asymptomatic participants. In asymptomatic participants, PHE + AH significantly decreased the signal amplitude (AMP) of IES (P = .01) and CES (P = .02) muscles. In participants with CLBP, IES muscle AMP was lower during PHE + AH compared with PHE + AB and PHE alone. With regard to onset delay, the results also showed no significant difference between maneuvers within either of the 2 groups (P > .05). CONCLUSIONS Performance of the AH maneuver decreased the erector spinae muscle AMP in both groups, and neither maneuver altered the onset delay of any of the muscles in either group. The low back pain group showed higher levels of activity in all muscles (not statistically significant in gluteus maximus during all maneuvers). The groups were similar according to the onset delay of any of the muscles during either maneuver.
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Stewart DM, Gregory DE. The use of intermittent trunk flexion to alleviate low back pain during prolonged standing. J Electromyogr Kinesiol 2016; 27:46-51. [DOI: 10.1016/j.jelekin.2016.01.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 01/11/2016] [Accepted: 01/18/2016] [Indexed: 11/28/2022] Open
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Massé-Alarie H, Beaulieu LD, Preuss R, Schneider C. Influence of chronic low back pain and fear of movement on the activation of the transversely oriented abdominal muscles during forward bending. J Electromyogr Kinesiol 2016; 27:87-94. [DOI: 10.1016/j.jelekin.2016.02.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Revised: 02/02/2016] [Accepted: 02/13/2016] [Indexed: 11/29/2022] Open
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du Rose A, Breen A. Relationships between Paraspinal Muscle Activity and Lumbar Inter-Vertebral Range of Motion. Healthcare (Basel) 2016; 4:healthcare4010004. [PMID: 27417592 PMCID: PMC4934538 DOI: 10.3390/healthcare4010004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Revised: 12/21/2015] [Accepted: 12/24/2015] [Indexed: 11/16/2022] Open
Abstract
Control of the lumbar spine requires contributions from both the active and passive sub-systems. Identifying interactions between these systems may provide insight into the mechanisms of low back pain. However, as a first step it is important to investigate what is normal. The purpose of this study was to explore the relationships between the lumbar inter-vertebral range of motion and paraspinal muscle activity during weight-bearing flexion in healthy controls using quantitative fluoroscopy (QF) and surface electromyography (sEMG). Contemporaneous lumbar sEMG and QF motion sequences were recorded during controlled active flexion of 60° using electrodes placed over Longissimus thoracis pars thoracis (TES), Longissimus thoracis pars lumborum (LES), and Multifidus (LMU). Normalised root mean square (RMS) sEMG amplitude data were averaged over five epochs, and the change in amplitude between epochs was calculated. The sEMG ratios of LMU/LES LMU/TES and LES/TES were also determined. QF was used to measure the maximum inter-vertebral range of motion from L2-S1, and correlation coefficients were calculated between sEMG amplitude variables and these measurements. Intra- and inter-session sEMG amplitude repeatability was also assessed for all three paraspinal muscles. The sEMG amplitude measurements were highly repeatable, and sEMG amplitude changes correlated significantly with L4-5 and L5-S1 IV-RoMmax (r = -0.47 to 0.59). The sEMG amplitude ratio of LES/TES also correlated with L4-L5 IV-RoMmax (r = -0.53). The relationships found may be important when considering rehabilitation for low back pain.
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Affiliation(s)
- Alister du Rose
- Institute for Musculoskeletal Research and Clinical Implementation, Anglo-European College of Chiropractic, Parkwood Road, Bournemouth BH5 2DF, UK.
- Faculty of Science and Technology, Bournemouth University, Fern Barrow, Poole BH12 5B, UK.
| | - Alan Breen
- Institute for Musculoskeletal Research and Clinical Implementation, Anglo-European College of Chiropractic, Parkwood Road, Bournemouth BH5 2DF, UK.
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