scholarly journals Electromyography for Assessment of Pain in Low Back Muscles

2008 ◽  
Vol 88 (9) ◽  
pp. 1061-1067 ◽  
Author(s):  
Cláudia Tarragô Candotti ◽  
Jefferson Fagundes Loss ◽  
Ana Maria Steffens Pressi ◽  
Flávio Antonio de Souza Castro ◽  
Marcelo La Torre ◽  
...  
Keyword(s):  
Regression Analysis ◽  
Low Back Pain ◽  
Back Pain ◽  
Linear Regression ◽  
Muscle Fatigue ◽  
Fatigue Test ◽  
Linear Regression Analysis ◽  
Self Report ◽  
Low Back ◽  
Force Data

Background and Purpose Pain is currently evaluated with “subjective” methods (eg, patient self-report). This study aimed to test whether fatigue indexes are able to accurately discriminate between subjects with and subjects without low back pain. Subjects Sixty subjects separated into 2 groups—a group with low back pain (n=30) and a group without low back pain (n=30)—participated in this study. Methods Electromyographic (EMG) and force data were obtained during a muscle fatigue test. The same test was repeated to monitor recovery. Linear regression analysis was used to obtain fatigue indexes. Results Subjects with pain produced significantly lower force values than those without pain. The use of fatigue indexes and force values permitted accurate classification in 89.5% of cases. Discussion and Conclusion The results confirm that subjects with pain show early myoelectrical manifestations of muscle fatigue and that EMG can be a useful tool in the evaluation of low back pain.

Emotional Distress Correlates Among Patients With Chronic Nonspecific Low Back Pain: A Hierarchical Linear Regression Analysis

Pain Practice ◽  
2019 ◽  
Vol 19 (5) ◽  
pp. 510-521 ◽  
Author(s):  
Shizheng Du ◽  
Yan Hu ◽  
Yamei Bai ◽  
Lingli Hu ◽  
Jianshu Dong ◽  
...  
Keyword(s):  
Regression Analysis ◽  
Low Back Pain ◽  
Back Pain ◽  
Linear Regression ◽  
Emotional Distress ◽  
Linear Regression Analysis ◽  
Low Back

scholarly journals Factors associating with disability of non-specific low back pain in different subgroups: A hierarchical linear regression analysis

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Takahiro Miki ◽  
Daisuke Higuchi ◽  
Tsuneo Takebayashi ◽  
Mina Samukawa
Keyword(s):  
Regression Analysis ◽  
Low Back Pain ◽  
Back Pain ◽  
Pain Intensity ◽  
Psychosocial Factors ◽  
Self Efficacy ◽  
Explanatory Power ◽  
Low Back ◽  
Acute Group ◽  
Pain Catastrophising

AbstractThis study aimed to explore factors associating with disability, which means physical impairment affecting a person’s mobility, capacity, stamina, or agility, of non-specific low back pain (NSLBP) of the acute and non-acute groups. Two hundred thirty-five patients with NSLBP of less than 8 weeks’ duration as acute groups (n = 124) and more than 8 weeks’ duration as non-acute group (n = 111) were recruited. It was collected data on pain intensity, disability and psychosocial factors, including pain catastrophising, fear of movement and pain self-efficacy. Disability was measured Roland Morris Disability Questionnaire. A hierarchical multiple regression analysis was performed to analyse factors associating with disability of the acute and non-acute groups. The Result was that explanatory power increased with each additional variable of the order of demographic characteristics, pain intensity and psychosocial factors for both groups. Pain intensity, pain catastrophising and pain self-efficacy had significant explanatory power, with pain self-efficacy having the most significant association on the acute group. Only pain self-efficacy having the most significant association on disability of the non-acute group. In conclusion, the factors associating with disability differed depending on the duration of the disease, and pain self-efficacy might be one of the factors associating with disability of patients with NSLBP.

scholarly journals The prevalence and risk factors of chronic low back pain among adults in KwaZulu-Natal, South Africa: an observational cross-sectional hospital-based study

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Morris Kahere ◽  
Themba Ginindza
Keyword(s):  
Risk Factors ◽  
Regression Analysis ◽  
Low Back Pain ◽  
Back Pain ◽  
Formal Education ◽  
Sedentary Lifestyle ◽  
Low Back ◽  
Cross Sectional ◽  
Physical Exercises ◽  
Kwazulu Natal

Abstract Background Globally, chronic low back pain (CLBP) is the leading cause of disability associated with economic costs. However, it has received little attention in low-and-middle-income countries. This study estimated the prevalence and risk factors of CLBP among adults presenting at selected hospitals in KwaZulu-Natal. Methodology This cross-sectional study was conducted among adults aged ≥18 years who attended the selected hospitals in KwaZulu-Natal during the study period. A self-administered questionnaire was used to collect data on socio-demographic, work-related factors, and information about CLBP. The SPSS version 24.0 (IBM SPSS Inc) was used for data analysis. Descriptive statistics were used for demographic characteristics of participants. CLBP risk factors were assessed using multivariate logistic regression analysis. A p-value of ≤0.05 was deemed statistically significant. Results A total of 678 adults participated in this study. The overall prevalence of CLBP was 18.1% (95% CI: 15.3 – 21.3) with females having a higher prevalence than males, 19.8% (95% CI: 16.0 – 24.1) and 15.85% (95% CI: 11.8 – 20.6), respectively. Using multivariate regression analysis, the following risk factors were identified: overweight (aOR: 3.7, 95% CI: 1.1 – 12.3, p = 0.032), no formal education (aOR: 6.1, 95% CI: 2.1 – 18.1, p = 0.001), lack of regular physical exercises (aOR: 2.2, 95% CI: 1.0 – 4.8, p = 0.044), smoking 1 to 10 (aOR: 4.5, 95% CI: 2.0 – 10.2, p < 0.001) and more than 11 cigarettes per day (aOR: 25.3, 95% CI: 10.4 – 61.2, p < 0.001), occasional and frequent consumption of alcohol, aOR: 2.5, 95% CI: 1.1 – 5.9, p < 0.001 and aOR: 11.3, 95% CI: 4.9 – 25.8, p < 0.001, respectively, a sedentary lifestyle (aOR: 31.8, 95% CI: 11.2 – 90.2, p < 0.001), manual work (aOR: 26.2, 95% CI: 10.1 – 68.4, p < 0.001) and a stooped sitting posture (aOR: 6.0, 95% CI: 2.0 – 17.6, p = 0.001). Conclusion This study concluded that the prevalence of CLBP in KwaZulu-Natal is higher than in other regions, and that it is predicted by a lack of formal education, overweight, lack of regular physical exercises, smoking, alcohol consumption, sedentary lifestyle, manual work, and a stooped posture.

scholarly journals An Evaluation of an Innovative Exercise to Relieve Chronic Low Back Pain in Sedentary Workers

2020 ◽  
pp. 001872082096608
Author(s):  
Pongsatorn Saiklang ◽  
Rungthip Puntumetakul ◽  
James Selfe ◽  
Gillian Yeowell
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Pain Intensity ◽  
Muscle Fatigue ◽  
Chronic Low Back Pain ◽  
Muscle Activity ◽  
Trunk Muscle ◽  
Low Back ◽  
Prolonged Sitting ◽  
Lumbar Extension

Objective The purpose of the study was to examine the effectiveness of a novel supported dynamic lumbar extension with the abdominal drawing-in maneuver (ADIM) technique on stature change, deep abdominal muscle activity, trunk muscle fatigue, and pain intensity during prolonged sitting in chronic low back pain (CLBP) participants. Background Prolonged sitting can cause trunk muscle fatigue from continuous contraction of deep trunk muscles in seated postures. Deficiency of activity of deep muscles can reduce muscular support of the spine, causing stress on spinal structures, which could result in pain. Method Thirty participants with CLBP were randomly allocated: (a) control—sitting without exercise, and (b) intervention—supported dynamic lumbar extension with the ADIM technique. Results Compared to the intervention condition, the control condition demonstrated significantly greater deterioration in stature change, increased levels of deep trunk muscle fatigue, and an increase in pain during prolonged sitting. Conclusion The supported dynamic lumbar extension with the ADIM technique appears to provide a protective effect on detrimental stature change and deep trunk muscle fatigue. In addition, it prevented an increase in pain intensity during prolonged sitting in people with CLBP. Application Sedentary behavior harms health, particularly affecting the lower back. Clinicians can use the intervention to induce dynamic lumbar movement, and this exercise can maintain deep trunk muscle activity during prolonged sitting, thereby helping to prevent low back pain (LBP) problems.

scholarly journals Age- and sex-specific effects in paravertebral surface electromyographic back extensor muscle fatigue in chronic low back pain

GeroScience ◽  
2019 ◽  
Vol 42 (1) ◽  
pp. 251-269 ◽  
Author(s):  
Gerold Ebenbichler ◽  
Richard Habenicht ◽  
Sara Ziegelbecker ◽  
Josef Kollmitzer ◽  
Patrick Mair ◽  
...  
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Muscle Fatigue ◽  
Chronic Low Back Pain ◽  
Median Frequency ◽  
Low Back ◽  
Back Muscle ◽  
The Impact ◽  
Back Extensor ◽  
Age And Sex

AbstractThe impact of aging on the back muscles is not well understood, yet may hold clues to both normal aging and chronic low back pain (cLBP). This study sought to investigate whether the median frequency (MF) surface electromyographic (SEMG) back muscle fatigue method—a proxy for glycolytic muscle metabolism—would be able to detect age- and sex-specific differences in neuromuscular and muscle metabolic functions in individuals with cLBP in a reliable way, and whether it would be as sensitive as when used on healthy individuals. With participants seated on a dynamometer (20° trunk anteflexion), paraspinal SEMG activity was recorded bilaterally from the multifidus (L5), longissimus (L2), and iliolumbalis (L1) muscles during isometric, sustained back extensions loaded at 80% of maximum from 117 younger (58 females) and 112 older (56 female) cLBP individuals. Tests were repeated after 1–2 days and 6 weeks. Median frequency, the SEMG variable indicating neuromuscular fatigue, was analyzed. Maximum back extensor strength was comparable between younger and older participants. Significantly less MF-SEMG back muscle fatigue was observed in older as compared to younger, and in older female as compared to older male cLBP individuals. Relative reliability was excellent, but absolute reliability appeared large for this SEMG-fatigue measure. Findings suggest that cLBP likely does not mask the age-specific diagnostic potential of the MF-SEMG back extensor fatigue method. Thus, this method possesses a great potential to be further developed into a valuable biomarker capable of detecting back muscle function at risk of sarcopenia at very early stages.

scholarly journals An Examination of Word Relevance in a Modified Stroop Task in Patients with Chronic Low Back Pain

2005 ◽  
Vol 100 (3_suppl) ◽  
pp. 955-963 ◽  
Author(s):  
Jeffrey Roelofs ◽  
Madelon L. Peters ◽  
Geert Crombez ◽  
Bruno Verschuere ◽  
Johan W. S. Vlaeyen
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Stroop Task ◽  
Chronic Low Back Pain ◽  
Reaction Times ◽  
Self Report ◽  
Personal Relevance ◽  
Low Back ◽  
Attentional Processing ◽  
Modified Stroop

The present study examined the role of personal relevance of sensory pain-related words in selective attentional processing measured with a modified Stroop task administered to 30 patients with chronic low back pain. A related aim of this study was to introduce the application of multilevel analysis to test the influence of personal relevance on selective attentional processing in this sample. Patients completed the modified Stroop task, as well as a set of self-report measures aimed to assess Fear of Pain, Trait Anxiety, Catastrophizing, Pain Vigilance, and Pain Intensity. The modified Stroop task comprised 33 sensory pain-related words for which the personal relevance towards current concerns was rated afterwards by each participant on a 7-point Likert-type scale. The multilevel analyses did not support the hypothesis that personal relevance of sensory pain-related words interacted with Fear of Pain scores of patients in accounting for reaction times in naming the color of sensory pain-related words. None of the other self-report measures accounted for reaction times in isolation or in interaction with personal relevance. The modified Stroop task does not appear to be a robust measure of selective attentional processing in patients with chronic low back pain. The usefulness of other paradigms, such as the visual dotprobe task, should be explored in examining selective attentional processing in this population.

Diagnostic accuracy of self-report and subjective history in the diagnosis of low back pain with non-specific lower extremity symptoms: A systematic review

2015 ◽  
Vol 20 (1) ◽  
pp. 18-27 ◽  
Author(s):  
Susan Shultz ◽  
Kristina Averell ◽  
Angela Eickelman ◽  
Holly Sanker ◽  
Megan Burrowbridge Donaldson
Keyword(s):  
Systematic Review ◽  
Low Back Pain ◽  
Back Pain ◽  
Lower Extremity ◽  
Diagnostic Accuracy ◽  
Self Report ◽  
Low Back

scholarly journals Methodology and demographics of a single blinded, randomized controlled trial of chiropractic compared to physical therapy for balance impairments in community dwelling geriatric patients with or without low back pain

2014 ◽  
Vol 22 (1) ◽  
Author(s):  
Dennis E Enix ◽  
Kasey L Sudkamp ◽  
Theodore K Malmstrom ◽  
Joseph H Flaherty
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Physical Therapy ◽  
Treatment Protocol ◽  
Chiropractic Care ◽  
Community Dwelling ◽  
Self Report ◽  
Low Back ◽  
Geriatric Population ◽  
Randomized Controlled

Abstract Background Postural control problems effect between 28% and 35% of individuals over the age 65 and increases with age. Musculoskeletal pain in the elderly impacts 20% to 49% of people between the ages of 65 and 75, is a leading falls risk factor, and a robust predictor of morbidity. Polypharmacy in the management of chronic pain is common in the geriatric population. Conservative treatment options for balance and back pain are underrepresented in scientific literature. Methods The methods and demographics for a prospective, randomized controlled single blinded clinical trial are described. This study evaluated the use of either chiropractic care or physical therapy as a treatment for patients with balance problems and with low back pain (68.5%) or without low back pain (31.5%) in the geriatric population. One hundred and sixty eight consecutively enrolled community dwelling adults between 60 and 85 years old (72.8 +/- 6.8) were randomly assigned to 6 weeks of either chiropractic care or physical therapy (12 - 18 visits). Testing occurred prior to randomization, after 6 weeks of treatment, and again 6 weeks later. Functional and self-report outcome measures for balance included the Berg Balance Scale, Performance Oriented Mobility Assessment, Timed Up and Go Test, and NeuroCom balance tests. Pain was assessed with the Visual Analog Scale, 21-Point Box Scale, and pressure algometry. Quality of life healthcare questionnaires included the Oswestry, the SF-36, and the Falls Efficacy Scale for confidence in performing everyday activities. Data analysis for this intent-to-treat design was a mixed-model analysis of variance (ANOVA) (p < 0.05) and Bonferroni correction (p < 0.017 and p < 0.025). This study was set in a university biomedical and healthcare research facility and university ethics committee approval was obtained and written informed consent was given by all study participants. Conclusion The methodology of this multimodal treatment protocol for balance disorders and low back pain in the geriatric population and patient demographics are described in this paper. Additional research in this area is needed for this growing at risk population. Trial registration NCT02031562.

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