Comparison of muscle activity from upper trapezius and wrist extensors between dominant and non-dominant upper limbs during computer-based tasks.
BACKGROUND: Sustained low-level muscle activity occurring during computer-based tasks is associated with the development of WMSDs (work-related musculoskeletal disorders) and this biomechanical exposure may be different between limbs. OBJECTIVE: To compare muscle activity from dominant and non-domin...
| Publicado en: | Work Vol. 61; no. 2; pp. 295 - 302 |
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| Autores principales: | , , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Sage Publications Inc.
2018
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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=132899432&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 132899432 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 10519815 3RC jtl: Work issn: 10519815 maglogo: N pubinfo: dt: 2018 vid: 61 iid: 2 pid: 344 pub: Sage Publications Inc. place: Thousand Oaks, California artinfo: ui: 132899432 132899432 132899432 10.3233/WOR-182800 132899432 ppf: 295 ppct: 7 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Comparison of muscle activity from upper trapezius and wrist extensors between dominant and non-dominant upper limbs during computer-based tasks. aug: au: Januario, Leticia Bergamin França, Dechristian Barbieri Moreira, Roberta de Fátima Carreira Oliveira, Ana Beatriz affil: Laboratory of Clinical and Occupational Kinesiology (LACO), Department of Physical Therapy, Federal University of São Carlos - UFSCar, São Carlos - SP, Brazil sug: subj: Computers and Computerization Task Performance and Analysis Wrist Muscle, Skeletal Physiology Trapezius Muscles Physiology Dominance, Cerebral Human Male Female Data Analysis Software Electromyography Comparative Studies Occupational Health Muscle Relaxation Adult Middle Age Adult: 19-44 years Middle Aged: 45-64 years Male Female ab: BACKGROUND: Sustained low-level muscle activity occurring during computer-based tasks is associated with the development of WMSDs (work-related musculoskeletal disorders) and this biomechanical exposure may be different between limbs. OBJECTIVE: To compare muscle activity from dominant and non-dominant upper trapezius (UT) and wrist extensors (WE) during computer-based tasks in real work settings. METHODS: Forty-five workers were monitored during two hours while performing their usual administrative tasks. Surface electromyography (sEMG) was recorded from UT and WE muscles in both sides. Rest and general exposure variables were calculated. RESULTS: The 50th percentile demonstrated little muscle activity demand, for both dominant and non-dominant UT and no difference between sides was observed. The dominant WE muscles had lower measures of rest and higher muscle activity when compared with the non-dominant side. CONCLUSIONS: Differences in sEMG between upper limbs were only found in WE muscles, probably due to the use of the mouse. The overall low-level muscle activity suggests a constant activation of the same motor units for the entire data-collection period, which can be considered harmful for musculoskeletal health. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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