The effects of dual screen layout on neck-shoulder muscle activity and head-neck posture variability during computer tasks.
BACKGROUND: Larger dual screens have been widely used during office work and their biomechanical exposure should be explored. OBJECTIVE: To investigate the biomechanical effect of two dual screen layouts on neck-shoulder muscle activity and the variability of head-neck posture in computer users. MET...
| Publicado en: | Work Vol. 76; no. 4; pp. 1535 - 1547 |
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| Autores principales: | , , |
| Formato: | pictorial research tables/charts Journal Article |
| Publicado: |
Sage Publications Inc.
2023
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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=174292260&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 174292260 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 10519815 3RC jtl: Work issn: 10519815 maglogo: N pubinfo: dt: 2023 vid: 76 iid: 4 pid: 344 pub: Sage Publications Inc. place: Thousand Oaks, California artinfo: ui: 174292260 164454893 174292260 174292260 10.3233/WOR-220585 174292260 ppf: 1535 ppct: 12 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: The effects of dual screen layout on neck-shoulder muscle activity and head-neck posture variability during computer tasks. aug: au: Fang, Fei Huo, Faren Feng, Yiran affil: Pan Tianshou College of Architecture, Art and Design, Ningbo University, Ningbo, China sug: subj: Computers and Computerization Utilization Computer Terminals User-Computer Interface Biomechanics Evaluation Muscle, Skeletal Physiology Neck Muscles Physiology Shoulder Head Posture Evaluation Human Adult Patient Positioning Reading Internet Searching Electromyography Erector Spinae Muscles Sternocleidomastoid Muscles Trapezius Muscles Bending Rotation Flexion Visual Analog Scaling Sprains and Strains Comparative Studies Muscle Fatigue Kinematics Data Analysis Software Descriptive Statistics Funding Source Adult: 19-44 years ab: BACKGROUND: Larger dual screens have been widely used during office work and their biomechanical exposure should be explored. OBJECTIVE: To investigate the biomechanical effect of two dual screen layouts on neck-shoulder muscle activity and the variability of head-neck posture in computer users. METHODS: A preliminary study of the user-preferred dual screen angles was carried out in V-shaped and L-shaped layouts. Twenty healthy participants aged 19 to 26 years were recruited and assigned to perform reading, typing, and searching tasks for 30 minutes in both workstation layouts. Electromyography was measured at bilateral cervical erector spinae (CES), sternocleidomastoid (SCM), and upper trapezius (UT). The head-neck lateral bending, rotation, and flexion angles were recorded. The visual analog scale (VAS) was used to evaluate visual strain. RESULTS: The muscle activity at the left UT and right CES sites when using the V-shaped layout was significantly higher than the L-shaped. There were significant differences in head-neck rotation and flexion angles between the two layouts in reading and typing tasks. In the searching task, there was no significant difference in the head-neck rotation and flexion angles between the two layouts. The visual strain score was significantly higher in the V-shaped layout. CONCLUSION: The CES and UT muscles displayed higher levels of activation while using the V-shaped layout in comparison to the L-shaped layout. The head-neck rotation and flexion angles differed due to varied types of work when using V-shaped and L-shaped layouts. pubtype: Academic Journal doctype: pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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