Effects on variation in shoulder, forearm and low back muscle activity from combining seated computer work with other productive office tasks: results from a simulation study.
The effect on muscle activity variation of combining different office tasks is not known. We recorded electromyography from the upper trapezius (UT), wrist extensor (WE) and lumbar erector spinae (LES) in 24 office workers during five productive tasks, and breaks. Minute-to-minute variance was then...
| Publicado en: | Ergonomics Vol. 65; no. 6; pp. 815 - 828 |
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| Autores principales: | , , , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Taylor & Francis Ltd
Jun2022
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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=157296352&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 157296352 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 00140139 ERO jtl: Ergonomics issn: 00140139 maglogo: Y pubinfo: dt: Jun2022 vid: 65 iid: 6 pid: 377 pub: Taylor & Francis Ltd place: Philadelphia, Pennsylvania artinfo: ui: 157296352 153126629 157296352 157296352 10.1080/00140139.2021.1994657 157296352 ppf: 815 ppct: 13 formats: tig: atl: Effects on variation in shoulder, forearm and low back muscle activity from combining seated computer work with other productive office tasks: results from a simulation study. aug: au: Barbieri, Dechristian França Brusaca, Luiz Augusto Mathiassen, Svend Erik Srinivasan, Divya Oliveira, Ana Beatriz affil: Laboratory of Clinical and Occupational Kinesiology, Department of Physical Therapy, Federal University of São Carlos, São Carlos, Brazil sug: subj: Sitting Computers and Computerization Task Performance and Analysis Muscle, Skeletal Physiopathology Shoulder Forearm Back Human Simulations Ergonomics Musculoskeletal Diseases Epidemiology White Collar Workers Musculoskeletal Diseases Etiology Electromyography Descriptive Statistics Standing Lumbar Vertebrae Work Physiology Trapezius Muscles Physiology Erector Spinae Muscles Physiology ab: The effect on muscle activity variation of combining different office tasks is not known. We recorded electromyography from the upper trapezius (UT), wrist extensor (WE) and lumbar erector spinae (LES) in 24 office workers during five productive tasks, and breaks. Minute-to-minute variance was then estimated, by simulations, in a reference 'job' consisting of 85% sitting computer work and 15% breaks, and in 'jobs' where sitting computer work was replaced by different proportions of the other office tasks and breaks. Replacing sitting computer work with sitting non-computer work increased estimated variance by, in median, 23% (UT), 19% (WE) and 0% (LES). Replacing it with other tasks, in particular, standing computer and non-computer work, was less effective in increasing variance. Thus, some combinations of office tasks have a slight potential to increase muscle activity variation in the shoulder and lower arm, but not the lumbar back, while others will be ineffective. Practitioner summary: The need for exposure variation is often emphasised in office ergonomics. We estimated the effect on muscle activity in the shoulder, forearm and lumbar back of combining sitting computer work with other available tasks and breaks, finding that introduction of sitting non-computer tasks and non-desk work slightly increased variation; other tasks were essentially non-effective. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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