Muscle Timing and Activation Patterns during Two Movement Screening Tests in Subjects With and Without Low Back Pain.
Study Design: Controlled laboratory study. Purpose: The aim of this study was to determine if there are any differences in hip and trunk muscle activation and firing patterns during 2 movement screening tests in individuals with low back pain (LBP) and control participants. Methods: Muscle activatio...
| Publicado en: | Journal of the National Society of Allied Health pp. 38 - 49 |
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| Autores principales: | , , , |
| Formato: | pictorial research tables/charts Journal Article |
| Publicado: |
National Society of Allied Health
Spring/Summer2013
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=128282190&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 128282190 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 19453361 50FC jtl: Journal of the National Society of Allied Health issn: 19453361 maglogo: N pubinfo: dt: Spring/Summer2013 pid: 39498 pub: National Society of Allied Health place: Mitchellville, Maryland artinfo: ui: 128282190 128282190 128282190 128282190 ppf: 38 ppct: 11 formats: fmt: @attributes: type: P tig: atl: Muscle Timing and Activation Patterns during Two Movement Screening Tests in Subjects With and Without Low Back Pain. aug: au: Rabel, Michael Chase, Ryan Lominac, Mike Chin Yoon affil: Department of Physical Therapy, University of Maryland Eastern Shore sug: subj: Low Back Pain Hip Joint Physiology Torso Physiology Muscle Contraction Movement Functional Assessment Human Electromyography Adult Young Adult Middle Age Abduction One-Way Analysis of Variance Statistical Significance Gluteal Muscles Physiology Male Female Descriptive Statistics Maryland Questionnaires Visual Analog Scaling Pain Measurement Data Analysis Software Intraclass Correlation Coefficient Test-Retest Reliability Extension P-Value Erector Spinae Muscles Physiology Adult: 19-44 years Middle Aged: 45-64 years Male Female ab: Study Design: Controlled laboratory study. Purpose: The aim of this study was to determine if there are any differences in hip and trunk muscle activation and firing patterns during 2 movement screening tests in individuals with low back pain (LBP) and control participants. Methods: Muscle activation for specific trunk and lower extremity muscles was examined by surface Electromyography (EMG). Twenty-two healthy active controls (mean age ± SD, 27.2 ± 4.6 years) and twelve subjects with LBP (mean age ± SD, 44.4 ± 14.6 years) participated in the study. The movement tests under investigation were the prone straight leg raise (PSLR) and sidelying hip abduction (SHA). Mean onset muscle timing and activation patterns were identified for each movement test. Separate one-way analyses of variance (ANOVAs) were used to determine differences in muscle onset times between groups. The influence of age was considered as a covariate in the analysis. Results: Significant between group differences were identified in muscle onset times. During the PSLR, subjects with LBP recruited muscles of the lower extremity before the trunk. This pattern was reversed for the controls. The onset time of the gluteus maximus was significantly greater for subjects with LBP (P=0.001). During SHA, the firing sequence was similar for both groups. Compared to healthy controls, subjects with LBP displayed a significant delay in onset times for all back muscles (Pd"0.002). Conclusions: Subjects with LBP were unable to effectively recruit/control their trunk musculature during these movement screening tests. A better understanding of this movement impairment and the restoration of trunk control may lead to a faster recovery. pubtype: Academic Journal doctype: pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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