scholarly journals The effect of experimental low back pain on lumbar muscle activity in people with a history of clinical low back pain: a muscle functional MRI study

2016 ◽  
Vol 115 (2) ◽  
pp. 851-857 ◽  
Author(s):  
Lieven Danneels ◽  
Barbara Cagnie ◽  
Roseline D'hooge ◽  
Yves De Deene ◽  
Geert Crombez ◽  
...  
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Functional Mri ◽  
Muscle Activity ◽  
Experimental Pain ◽  
Erector Spinae ◽  
Low Back ◽  
Lumbar Muscle ◽  
History Of ◽  
Trunk Extension

In people with a history of low back pain (LBP), structural and functional alterations have been observed at several peripheral and central levels of the sensorimotor pathway. These existing alterations might interact with the way the sensorimotor system responds to pain. We examined this assumption by evaluating the lumbar motor responses to experimental nociceptive input of 15 participants during remission of unilateral recurrent LBP. Quantitative T2 images (muscle functional MRI) were taken bilaterally of multifidus, erector spinae, and psoas at several segmental levels (L3 upper and L4 upper and lower endplate) and during several conditions: 1) at rest, 2) upon trunk-extension exercise without pain, and 3) upon trunk-extension exercise with experimental induced pain at the clinical pain-side (1.5-ml intramuscular hypertonic saline injections in erector spinae). Following experimental pain induction, muscle activity levels similarly reduced for all three muscles, on both painful and nonpainful sides, and at multiple segmental levels ( P = 0.038). Pain intensity and localization from experimental LBP were similar as during recalled clinical LBP episodes. In conclusion, unilateral and unisegmental experimental LBP exerts a generalized and widespread decrease in lumbar muscle activity during remission of recurrent LBP. This muscle response is consistent with previous observed patterns in healthy people subjected to the same experimental pain paradigm. It is striking that similar inhibitory patterns in response to pain could be observed, despite the presence of preexisting alterations in the lumbar musculature during remission of recurrent LBP. These results suggest that motor output can modify along the course of recurrent LBP.

scholarly journals Differences in myoelectric activity of the lumbar muscles between recurrent and chronic low back pain: a cross-sectional study

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Balasch-Bernat Mercè ◽  
Willems Tine ◽  
Danneels Lieven ◽  
Meeus Mira ◽  
Goubert Dorien
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Muscle Activity ◽  
Healthy Subjects ◽  
Erector Spinae ◽  
Emg Activity ◽  
Myoelectric Activity ◽  
Healthy Controls ◽  
Low Back ◽  
Trunk Extension

Abstract Background Altered lower back muscle activity is proposed as a contributing factor to the reoccurrence and chronicity of low back pain (LBP). This study compared lumbar muscle activity during trunk extension in patients with continuous chronic LBP (CLBP), non-continuous CLBP, recurrent LBP (RLBP) and healthy subjects. Methods In 75 subjects (16 continuous CLBP, 15 non-continuous CLBP, 23 RLBP, 21 healthy controls), surface electromyographic (EMG) activity of the lumbar erector spinae (ES), multifidus (MF), latissimus dorsi (LD) and gluteus maximus (GM) was recorded during the concentric, holding and eccentric phase of a modified Biering Sorenson exercise. Results Continuous CLBP patients showed higher EMG activity in the ES and MF muscles compared to healthy controls in the concentric (p = 0.011; p = 0.009 respectively) and the holding phase (p = 0.015; p = 0.013). Higher EMG activity was observed in continuous CLBP compared to RLBP in the ES and MF muscles in the holding phase (p = 0.035; p = 0.037), and in the MF in the concentric phase (p = 0.046), but not in the ES (p = 0.062). No differences in muscle activity were established in either the concentric, holding, and eccentric phase for the LD and GM muscles. No differences were found between non-continuous CLBP and the other groups. Conclusions An enhanced muscle activity of the lumbar muscles during the concentric and holding phase was observed during trunk extension in patients with continuous CLBP compared to patients with RLBP and healthy subjects. No differences between groups are present in the GM and LD muscles during concentric and holding phases and for any muscle in the eccentric phase.

scholarly journals Rowers with a recent history of low back pain engage different regions of the lumbar erector spinae during rowing

2019 ◽  
Vol 22 (11) ◽  
pp. 1206-1212 ◽  
Author(s):  
Eduardo Martinez-Valdes ◽  
Fiona Wilson ◽  
Neil Fleming ◽  
Sarah-Jane McDonnell ◽  
Alex Horgan ◽  
...  
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Erector Spinae ◽  
Recent History ◽  
Low Back ◽  
History Of

scholarly journals Effects of Whole Body Vibration exercise on Lumbar-Abdominal Muscles Activation for patients with chronic low back pain

2020 ◽  
Author(s):  
yulin dong ◽  
huifang wang ◽  
Yan Zhu ◽  
Binlin Chen ◽  
Yili Zheng ◽  
...  
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Chronic Low Back Pain ◽  
Muscle Activity ◽  
Whole Body Vibration ◽  
Abdominal Muscle ◽  
Erector Spinae ◽  
Whole Body ◽  
Low Back ◽  
Body Vibration

Abstract BackgroundWhole body vibration (WBV) training as an intervention method can cure chronic low back pain (CLBP). Different WBV parameters exert different effects on lumbar-abdominal muscle performance. Currently, there is a lack of study researched the influence of WBV training on patients with CLBP by lumbar–abdominal muscle activity. Therefore, this study aimed to investigate how WBV and exercise and their interactions influence lumbar-abdominal muscle activity in patients with CLBP.Methodsa group of ambulatory patients with chronic low back pain. Muscle activities of the multifidus, erector spinae, abdominal oblique externus muscle and the rectus abdominis muscle were measured by surface electromyography, whereas participants performed 4 different exercises during three whole body vibration conditions and a no-vibration condition in a single experimental session.ResultsCompared with the same exercises without whole body vibration, muscle activity increased when whole body vibration was added to the exercises. The frequency and exercise presented significant effects on the root mean square of multifidus, whereas exercise and frequency also resulted in significant interaction effects.ConclusionAdding whole body vibration to exercise could increase muscle activation of lumbar–abdominal muscle in patients with CLBP. The optimum frequency for lumbar–abdominal muscles is 15 Hz. The best exercises include plank for multifidus and erector spinae, V crunch for rectus abdominis and single bridge for abdominal oblique externus.Trial registration:ChiCTR-TRC-13003708. Registered 19 October 2013, http://www.chictr.org.cn/showproj.aspx?proj=5852

scholarly journals Structural Changes of Lumbar Muscles in Non-Specific Low Back Pain

2016 ◽  
Vol 7;19 (7;9) ◽  
pp. E985-E1000
Author(s):  
Lieven Danneels
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Structural Changes ◽  
Fiber Type ◽  
Erector Spinae ◽  
Low Back ◽  
Paraspinal Muscles ◽  
Fat Infiltration ◽  
Moderate Evidence ◽  
Lumbar Muscle

Background: Lumbar muscle dysfunction due to pain might be related to altered lumbar muscle structure. Macroscopically, muscle degeneration in low back pain (LBP) is characterized by a decrease in cross-sectional area and an increase in fat infiltration in the lumbar paraspinal muscles. In addition microscopic changes, such as changes in fiber distribution, might occur. Inconsistencies in results from different studies make it difficult to draw firm conclusions on which structural changes are present in the different types of non-specific LBP. Insights regarding structural muscle alterations in LBP are, however, important for prevention and treatment of non-specific LBP. Objective: The goal of this article is to review which macro- and/or microscopic structural alterations of the lumbar muscles occur in case of non-specific chronic low back pain (CLBP), recurrent low back pain (RLBP), and acute low back pain (ALBP). Study Design: Systematic review. Setting: All selected studies were case-control studies. Methods: A systematic literature search was conducted in the databases PubMed and Web of Science. Only full texts of original studies regarding structural alterations (atrophy, fat infiltration, and fiber type distribution) in lumbar muscles of patients with non-specific LBP compared to healthy controls were included. All included articles were scored on methodological quality. Results: Fifteen studies were found eligible after screening title, abstract, and full text for inclusion and exclusion criteria. In CLBP, moderate evidence of atrophy was found in the multifidus; whereas, results in the paraspinal and the erector spinae muscle remain inconclusive. Also moderate evidence occurred in RLBP and ALBP, where no atrophy was shown in any lumbar muscle. Conflicting results were seen in undefined LBP groups. Results concerning fat infiltration were inconsistent in CLBP. On the other hand, there is moderate evidence in RLBP that fat infiltration does not occur, although a larger muscle fat index was found in the erector spinae, multifidus, and paraspinal muscles, reflecting an increased relative amount of intramuscular lipids in RLBP. However, no studies were found investigating fat infiltration in ALBP. Restricted evidence indicates no abnormalities in fiber type in the paraspinal muscles in CLBP. No studies have examined fiber type in ALBP and RLBP. Limitations: Lack of clarity concerning patient definitions, exact LBP symptoms, and applied methods. Conclusions: The results indicate atrophy in CLBP in the multifidus and paraspinal muscles but not in the erector spinae. No atrophy was shown in RLBP and ALBP. Fat infiltration did not occur in RLBP, but results in CLBP were inconsistent. No abnormalities in fiber type in the paraspinal muscles were found in CLBP. Key words: Low back pain, non-specific, chronic, recurrent, acute, muscle structure, fat infiltration, cross-sectional area, fiber type, review

scholarly journals Association between lumbopelvic motion and muscle activation in patients with non-specific low back pain during forward bending task: A cross-sectional study

2019 ◽  
Vol 40 (01) ◽  
pp. 29-37
Author(s):  
Peemongkon Wattananon ◽  
Komsak Sinsurin ◽  
Sirikarn Somprasong
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Muscle Activity ◽  
Muscle Activation ◽  
Erector Spinae ◽  
Low Back ◽  
Activation Patterns ◽  
Muscle Activation Patterns ◽  
Forward Bending ◽  
Lumbar Motion

Background: Evidence suggests patients with non-specific low back pain (NSLBP) have altered lumbar and pelvic movement patterns. These changes could be associated with altered patterns of muscle activation. Objective: The study aimed to determine: (1) differences in the relative contributions and velocity of lumbar and pelvic movements between people with and without NSLBP, (2) the differences in lumbopelvic muscle activation patterns between people with and without NSLBP, and (3) the association between lumbar and pelvic movements and lumbopelvic muscle activation patterns. Methods: Subjects (8 healthy individuals and 8 patients with NSLBP) performed 2 sets of 3 repetitions of active forward bending, while motion and muscle activity data were collected simultaneously. Data derived were lumbar and pelvic ranges of motion and velocity, and ipsilateral and contralateral lumbopelvic muscle activities (internal oblique[Formula: see text]transverse abdominis (IO[Formula: see text]TA), lumbar multifidus (LM), erector spinae (ES) and gluteus maximus (GM) muscles). Results: Lumbar and pelvic motions showed trends, but exceeded 95% confidence minimal detectable difference (MDD[Formula: see text]), for greater pelvic motion [Formula: see text], less lumbar motion [Formula: see text] among patients with NSLBP. Significantly less activity was observed in the GM muscles bilaterally [Formula: see text] in the NSLBP group. A significant association [Formula: see text], [Formula: see text] was found between ipsilateral ES muscle activity and lumbar motion, while moderate, but statistically non-significant associations, were found between GM muscle activity bilaterally and lumbar velocity [Formula: see text]ipsilateral: [Formula: see text], [Formula: see text]; contralateral: [Formula: see text], [Formula: see text] in the NSLBP group. Conclusion: Findings indicated patients had greater pelvic contribution, but less lumbar contribution which was associated with less activation of the GM bilaterally.

scholarly journals Determining Physiological and Psychological Predictors of Time to Task Failure on a Virtual Reality S�rensen Test in Participants With and Without Recurrent Low Back Pain: Exploratory Study (Preprint)

2018 ◽  
Author(s):  
Megan E Applegate ◽  
Christopher R France ◽  
David W Russ ◽  
Samuel T Leitkam ◽  
James S Thomas
Keyword(s):  
Virtual Reality ◽  
Low Back Pain ◽  
Back Pain ◽  
Test Performance ◽  
Self Efficacy ◽  
Biceps Femoris ◽  
Erector Spinae ◽  
Low Back ◽  
History Of ◽  
Recurrent Low Back Pain

BACKGROUND Sørensen trunk extension endurance test performance predicts the development of low back pain and is a strong discriminator of those with and without low back pain. Performance may greatly depend on psychological factors, such as kinesiophobia, self-efficacy, and motivation. Virtual reality video games have been used in people with low back pain to encourage physical activity that would otherwise be avoided out of fear of pain or harm. Accordingly, we developed a virtual reality video game to assess the influence of immersive gaming on the Sørensen test performance. OBJECTIVE The objective of our study was to determine the physiological and psychological predictors of time to task failure (TTF) on a virtual reality Sørensen test in participants with and without a history of recurrent low back pain. METHODS We recruited 24 individuals with a history of recurrent low back pain and 24 sex-, age-, and body mass index–matched individuals without a history of low back pain. Participants completed a series of psychological measures, including the Center for Epidemiological Studies-Depression Scale, Pain Resilience Scale, Pain Catastrophizing Scale, Tampa Scale for Kinesiophobia, and a self-efficacy measure. The maximal isometric strength of trunk and hip extensors and TTF on a virtual reality Sørensen test were measured. Electromyography of the erector spinae, gluteus maximus, and biceps femoris was recorded during the strength and endurance trials. RESULTS A two-way analysis of variance revealed no significant difference in TTF between groups (P=.99), but there was a trend for longer TTF in females on the virtual reality Sørensen test (P=.06). Linear regression analyses were performed to determine predictors of TTF in each group. In healthy participants, the normalized median power frequency slope of erector spinae (beta=.450, P=.01), biceps femoris (beta=.400, P=.01), and trunk mass (beta=−.32, P=.02) predicted TTF. In participants with recurrent low back pain, trunk mass (beta=−.67, P<.001), Tampa Scale for Kinesiophobia (beta=−.43, P=.01), and self-efficacy (beta=.35, P=.03) predicted TTF. CONCLUSIONS Trunk mass appears to be a consistent predictor of performance. Kinesiophobia appears to negatively influence TTF for those with a history of recurrent low back pain, but does not influence healthy individuals. Self-efficacy is associated with better performance in individuals with a history of recurrent low back pain, whereas a less steep median power frequency slope of the trunk and hip extensors is associated with better performance in individuals without a history of low back pain.

scholarly journals A history of low back pain associates with altered electromyographic activation patterns in response to perturbations of standing balance

2011 ◽  
Vol 106 (5) ◽  
pp. 2506-2514 ◽  
Author(s):  
Jesse V. Jacobs ◽  
Sharon M. Henry ◽  
Stephanie L. Jones ◽  
Juvena R. Hitt ◽  
Janice Y. Bunn
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Muscle Activation ◽  
Late Phase ◽  
Standing Balance ◽  
Erector Spinae ◽  
Low Back ◽  
Activation Patterns ◽  
Postural Responses ◽  
History Of

People with a history of low back pain (LBP) exhibit altered responses to postural perturbations, and the central neural control underlying these changes in postural responses remains unclear. To characterize more thoroughly the change in muscle activation patterns of people with LBP in response to a perturbation of standing balance, and to gain insight into the influence of early- vs. late-phase postural responses (differentiated by estimates of voluntary reaction times), this study evaluated the intermuscular patterns of electromyographic (EMG) activations from 24 people with and 21 people without a history of chronic, recurrent LBP in response to 12 directions of support surface translations. Two-factor general linear models examined differences between the 2 subject groups and 12 recorded muscles of the trunk and lower leg in the percentage of trials with bursts of EMG activation as well as the amplitudes of integrated EMG activation for each perturbation direction. The subjects with LBP exhibited 1) higher baseline EMG amplitudes of the erector spinae muscles before perturbation onset, 2) fewer early-phase activations at the internal oblique and gastrocnemius muscles, 3) fewer late-phase activations at the erector spinae, internal and external oblique, rectus abdominae, and tibialis anterior muscles, and 4) higher EMG amplitudes of the gastrocnemius muscle following the perturbation. The results indicate that a history of LBP associates with higher baseline muscle activation and that EMG responses are modulated from this activated state, rather than exhibiting acute burst activity from a quiescent state, perhaps to circumvent trunk displacements.

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