Prevalence of gluteus medius weakness in people with chronic low back pain compared to healthy controls

2015 ◽  
Vol 25 (4) ◽  
pp. 1258-1265 ◽  
Author(s):  
Nicholas A. Cooper ◽  
Kelsey M. Scavo ◽  
Kyle J. Strickland ◽  
Natti Tipayamongkol ◽  
Jeffrey D. Nicholson ◽  
...  
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Chronic Low Back Pain ◽  
Gluteus Medius ◽  
Healthy Controls ◽  
Low Back

Comparison of Selective Local and Global Muscle Thicknesses in Females with and without Chronic Low Back Pain

2018 ◽  
Vol 20 (3) ◽  
pp. 197-204 ◽  
Author(s):  
Mahnaz Aboufazeli ◽  
Mohammad Akbari ◽  
Ali Ashraf Jamshidi ◽  
Mohammad Saleh Jafarpisheh
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Chronic Low Back Pain ◽  
Healthy Subjects ◽  
Muscle Thickness ◽  
Gluteus Medius ◽  
Transversus Abdominis ◽  
Low Back ◽  
Lumbar Multifidus ◽  
Sample Test

Background. Chronic low back pain (LBP) leads to long-term physical and psychological problems and may result in acute deterioration of the pain. It is hypothesized that size changes in selected limb and pelvis muscles during contracting movements are different between healthy individuals and LBP patients. Materials and methods. A case-control study including two groups of 30 female participants with and without LBP symptoms was designed. Participants were 20-45 years old (36.7±6.7, healthy subjects; 34.6±6.2 LBP subjects). Ultrasonography was used to estimate the thicknesses of the quadratus lumborum (QL), gluteus medius (GMed), transversus abdominis (TrA) and lumbar multifidus (MF). Thickness changes of the muscles in a submaximal contracting position compared to the rest position were measured. Statistical analysis included an independent t-test to determine the significance of differences, and the Kolmogrov-Smirnov two-sample test to evaluate the normality and reliability. Results. All muscles increased their thickness during contractions. The average increase in LBP subjects was lower than in the healthy subjects. The smaller increase in the muscle thickness of GMed in the LBP group may suggest a weakness because of imbalance in the GMed muscle of LBP patients. Conclusions. 1. Ultrasonography of local and global muscles is an appropriate device for clinical diagnosis of LBP. 2. Strengthening TrA, MF, and GMed muscles for pain prevention is effective in the prevention and treatment of LBP.

Acupuncture Treatment of Chronic Low Back Pain Reverses An Abnormal Brain Default Mode Network in Correlation with Clinical Pain Relief

2014 ◽  
Vol 32 (2) ◽  
pp. 102-108 ◽  
Author(s):  
Ji Li ◽  
Jun-Hai Zhang ◽  
Tao Yi ◽  
Wei-Jun Tang ◽  
Song-Wei Wang ◽  
...  
Keyword(s):  
Low Back Pain ◽  
Prefrontal Cortex ◽  
Back Pain ◽  
Default Mode Network ◽  
Chronic Low Back Pain ◽  
Therapeutic Effects ◽  
Healthy Controls ◽  
Low Back ◽  
Default Mode ◽  
Clinical Pain

Background Acupuncture is gaining in popularity as a treatment for chronic low back pain (cLBP); however, its therapeutic mechanisms remain controversial, partly because of the absence of an objective way of measuring subjective pain. Resting-state functional MRI (rsfMRI) has demonstrated aberrant default mode network (DMN) connectivity in patients with chronic pain, and also shown that acupuncture increases DMN connectivity in pain-modulator and affective-emotional brain regions of healthy subjects. Objective This study sought to explore how cLBP influences the DMN and whether, and how, the altered DMN connectivity is reversed after acupuncture for clinical pain. Methods RsfMRI data from 20 patients with cLBP, before and after 4 weeks of treatment, and 10 age- and gender-matched healthy controls (without treatment) were analysed using independent components analyses to determine connectivity within the DMN, and combined with correlation analyses to compute covariance between changes in DMN connectivity and changes in clinical pain. Visual analogue scale data were assessed to rate clinical pain levels. Results Less connectivity within the DMN was found in patients with cLBP than in healthy controls, mainly in the dorsolateral prefrontal cortex, medial prefrontal cortex, anterior cingulate gyrus and precuneus. After acupuncture, patients’ connectivities were restored almost to the levels seen in healthy controls. Furthermore, reductions in clinical pain were correlated with increases in DMN connectivity. Conclusions This result suggests that modulation of the DMN by acupuncture is related to its therapeutic effects on cLBP. Imaging of the DMN provides an objective method for assessment of the effects of acupuncture-induced analgesia.

scholarly journals Frequency-Specific Blood Oxygen Level Dependent Oscillations Associated With Pain Relief From Ankle Acupuncture in Patients With Chronic Low Back Pain

2021 ◽  
Vol 15 ◽  
Author(s):  
Anfeng Xiang ◽  
Meiyu Chen ◽  
Chuan Qin ◽  
Jun Rong ◽  
Can Wang ◽  
...  
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Pain Relief ◽  
Chronic Low Back Pain ◽  
Resting State ◽  
Healthy Controls ◽  
Low Back ◽  
Acupuncture Analgesia ◽  
Mixed Effect ◽  
Functional Changes

Objective: Recent advances in brain imaging have deepened our knowledge of the neural activity in distinct brain areas associated with acupuncture analgesia. However, there has not been conclusive research into the frequency-specific resting-state functional changes associated with acupuncture analgesia in patients with chronic pain. Here, we aimed to characterize changes across multiple frequencies of resting-state cortical activity associated with ankle acupuncture stimulation (AAS) in patients with chronic low back pain (CLBP) and healthy controls.Methods: Twenty seven patients with CLBP and Twenty five age- and gender-matched healthy volunteers were enrolled in the study. Participants received tactile sham acupuncture (TSA) and AAS, respectively. The whole-brain amplitude of low-frequency fluctuation (ALFF) in the range 0.01–0.25 Hz was assessed for changes associated with each intervention. Further, a visual analog scale (VAS) was used to collect subjective measures of pain intensity in patients. Linear mixed-effect modeling (LME) was used to examine the mean ALFF values of AAS and TSA between patients and healthy controls.Results: The ALFF was modulated in the default mode network (an increase in the medial prefrontal cortex, and a decrease in the cerebellum/posterior ingulate/parahippocampus, P < 0.01, corrected) in both patients and controls. Decreased ALFF in the bilateral insular was frequency-dependent. Modulations in the cerebellum and right insular were significantly correlated with VAS pain score after AAS (P < 0.01).Conclusion: Hence, frequency-specific resting-state activity in the cerebellum and insular was correlated to AAS analgesia. Our frequency-specific analysis of ALFF may provide novel insights related to pain relief from acupuncture.

scholarly journals Lumbopelvic motor control function between patients with chronic low back pain and healthy controls

Medicine ◽  
2020 ◽  
Vol 99 (15) ◽  
pp. e19621 ◽  
Author(s):  
Sung-hoon Jung ◽  
Ui-jae Hwang ◽  
Sun-hee Ahn ◽  
Hyun-a Kim ◽  
Jun-hee Kim ◽  
...  
Keyword(s):  
Low Back Pain ◽  
Motor Control ◽  
Back Pain ◽  
Chronic Low Back Pain ◽  
Control Function ◽  
Healthy Controls ◽  
Low Back

Examining resting-state functional connectivity in key hubs of the default mode network in chronic low back pain

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Sin Ki Ng ◽  
Donna M. Urquhart ◽  
Paul B. Fitzgerald ◽  
Flavia M. Cicuttini ◽  
Melissa Kirkovski ◽  
...  
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Functional Connectivity ◽  
Default Mode Network ◽  
Chronic Low Back Pain ◽  
Resting State ◽  
Angular Gyrus ◽  
Healthy Controls ◽  
Low Back ◽  
Default Mode

Abstract Objectives Changes in brain connectivity have been observed within the default mode network (DMN) in chronic low back pain (CLBP), however the extent of these disruptions and how they may be related to CLBP requires further examination. While studies using seed-based analysis have found disrupted functional connectivity in the medial prefrontal cortex (mPFC), a major hub of the DMN, limited studies have investigated other equally important hubs, such as the posterior cingulate cortex (PCC) in CLBP. Methods This preliminary study comprised 12 individuals with CLBP and 12 healthy controls who completed a resting-state functional magnetic resonance imaging (fMRI) scan. The mPFC and PCC were used as seeds to assess functional connectivity. Results Both groups displayed similar patterns of DMN connectivity, however group comparisons showed that CLBP group had reduced connectivity between the PCC and angular gyrus compared to healthy controls. An exploratory analysis examined whether the alterations observed in mPFC and PCC connectivity were related to pain catastrophizing in CLBP, but no significant associations were observed. Conclusions These results may suggest alterations in the PCC are apparent in CLBP, however, the impact and functional role of these disruptions require further investigation.

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