Biomechanics and evaluating the workplace. Lumbar spine movement patterns during prolonged sitting differentiate low back pain developers from matched asymptomatic controls.
Background: Little is known about how lumbar spine movement influences mechanical changes and the potential injurious effects of prolonged flexion associated with seated postures. The purpose of this study was to examine the postural responses and pain scores of low back pain sufferers compared with...
| Publicado en: | Work Vol. 35; no. 1; pp. 3 - 15 |
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| Autores principales: | , |
| Formato: | equations & formulas research tables/charts Journal Article |
| Publicado: |
Sage Publications Inc.
2010
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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=105122243&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 105122243 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 10519815 3RC jtl: Work issn: 10519815 maglogo: N pubinfo: dt: 2010 vid: 35 iid: 1 pid: 344 pub: Sage Publications Inc. place: Thousand Oaks, California artinfo: ui: 105122243 105122243 2010568268 10.3233/WOR-2010-0953 NLM20164621 105122243 ppf: 3 ppct: 12 formats: fmt: @attributes: type: P tig: atl: Biomechanics and evaluating the workplace. Lumbar spine movement patterns during prolonged sitting differentiate low back pain developers from matched asymptomatic controls. aug: au: Dunk NM Callaghan JP affil: Department of Kinesiology, University of Waterloo, 200 University Ave. W, Waterloo, ON, N2L 3G1, Canada sug: subj: Low Back Pain Lumbar Vertebrae Accelerometers Classification Adult Algorithms Biomechanics Female Funding Source Human Male Movement Ontario Post Hoc Analysis Research Methodology Sitting Spine T-Tests Time Factors Two-Way Analysis of Variance Visual Analog Scaling Adult: 19-44 years Female Male ab: Background: Little is known about how lumbar spine movement influences mechanical changes and the potential injurious effects of prolonged flexion associated with seated postures. The purpose of this study was to examine the postural responses and pain scores of low back pain sufferers compared with asymptomatic individuals during prolonged sitting in order to understand the biomechanical factors that may be associated with sitting induced low back pain. Method: Sixteen participants with sitting-aggravated low back pain were age- and gender-matched with 16 asymptomatic participants. Tri-axial accelerometers were used to monitor lumbar spine angles during 90 minutes of seated computer work. Lumbar spine postures were examined using a movement pattern analysis of two types of postural adjustments, termed shifts (step-like adjustments larger than 5° and fidgets (small change and return to approximately the same position). Results: The LBP group reported large significant increases (P < 0.0001) in low back pain while asymptomatic individuals reported little to no pain. On average, every participant fidgeted every 40 to 50 seconds. However, only the LBP sufferers demonstrated a significant increase (P=0.04) in the number of shifts over 90 minutes of seated work; the LBP group shifted every 4 minutes in the last 30 minutes of sitting compared to every 10 minutes for the asymptomatic group. LBP sufferers also demonstrated larger amplitudes of shifts and fidgets when compared to the asymptomatic group. Conclusion: Greater and more frequent movement was not beneficial and did not reduce pain in individuals with pre-existing LBP. Future work to understand the biomechanical effects of proactively inducing movement may help to explain the paradox of the relationship between movement and pain. pubtype: Academic Journal doctype: equations & formulas research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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