Effects of stretching on muscle activation in gas cylinder handling.
BACKGROUND: Previously, a stretching regimen was designed for manual material handling (MMH) of gas cylinders as a potential ergonomic solution for reducing occupational injury. No studies have made use of objective process measures, such as muscle activation levels, for evaluation of effects of str...
| Publicado en: | Work Vol. 66; no. 1; pp. 149 - 161 |
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| Autores principales: | , , , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Sage Publications Inc.
2020
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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=143829246&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 143829246 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 10519815 3RC jtl: Work issn: 10519815 maglogo: N pubinfo: dt: 2020 vid: 66 iid: 1 pid: 344 pub: Sage Publications Inc. place: Thousand Oaks, California artinfo: ui: 143829246 143829246 147564454 143829246 10.3233/WOR-203159 143829246 ppf: 149 ppct: 12 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Effects of stretching on muscle activation in gas cylinder handling. aug: au: Wadeson, Amy White, Melissa M. Zhang, Wenjuan Lau, Mei Y. Kaber, David B. affil: Edward P. Fitts Department of Industrial Engineering, North Carolina State University, Raleigh, NC, USA sug: subj: Stretching Muscle, Skeletal Physiology Exertion Task Performance and Analysis Occupational-Related Injuries Prevention and Control Human Random Assignment Electromyography Scales Deltoid Muscles Trapezius Muscles Middle Age Adult Ergonomics Analysis of Variance Lifting Pull Gases Middle Aged: 45-64 years Adult: 19-44 years ab: BACKGROUND: Previously, a stretching regimen was designed for manual material handling (MMH) of gas cylinders as a potential ergonomic solution for reducing occupational injury. No studies have made use of objective process measures, such as muscle activation levels, for evaluation of effects of stretching programs. OBJECTIVE: Examine acute effects of stretching on muscle activation levels and driver perceived level of exertion in gas cylinder handling during simulated delivery operations. METHODS: A within-subject experiment was conducted with eight male participants being subjected randomly to two conditions over a two-day period: stretching before delivery trials and no stretching. Surface electromyography and the Borg CR-10 scale for perceived exertion were used. RESULTS: Generally, results were variable among muscle responses. The extensor muscle bundle in the forearm was found to show a significant decrease (p = 0.0464) in activation level because of stretching. The anterior deltoid and trapezius significantly increased (p <.0001) the EMG activation level with stretching. Also counter to expectations, participants rated perceived exertion significantly higher (p = 0.0423) for trials preceded by stretching. CONCLUSIONS: This research indicates a muscle stretching regimen in advance of MMH activities has mixed effects on activation levels across muscles. It is possible that effects are attributable to body posture positions, or manner of muscle use, during actual work activities. Findings indicate that stretching prior to work activity does have an impact on specific muscle activation. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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