An optimal effective working height for hammering tasks.
BACKGROUND: Hammering is a functional task in which the wrist generally follows a path of motion, however, previous studies paid relatively little attention to it. OBJECTIVE: The main objective of this study is to determine the optimal working height while using a straight-handled hammer to perform...
| Publicado en: | Work Vol. 61; no. 2; pp. 181 - 188 |
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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=132899423&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 132899423 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: 132899423 132899423 132899423 10.3233/WOR-182791 132899423 ppf: 181 ppct: 7 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: An optimal effective working height for hammering tasks. aug: au: Chen, Yuan-Ho Chen, Yi-Lang affil: Department of Business Administration, Lunghwa University of Science and Technology, Taiwan sug: subj: Ergonomics Task Performance and Analysis Torso Physiology Wrist Physiology Shoulder Physiology Movement Physiology Posture Human Male Flexion Abduction Adult Two-Way Analysis of Variance Post Hoc Analysis Pearson's Correlation Coefficient Regression Taiwan Adult: 19-44 years Male ab: BACKGROUND: Hammering is a functional task in which the wrist generally follows a path of motion, however, previous studies paid relatively little attention to it. OBJECTIVE: The main objective of this study is to determine the optimal working height while using a straight-handled hammer to perform the hammering task. METHODS: Ten participants performed the hammering tasks on three different working heights (64, 80, and 96 cm) using three subjective hammering forces (light, medium, and heavy). RESULTS: The results revealed that there were linear increasing trends of shoulder abduction, which increased with the increased working height when hammering and the trunk flexion revealed a contrary result. However, the ulnar deviation and trunk lateral bending were insensitive to the working heights. The hammering forces merely resulted in trunk flexion and lateral bending and no posture differences at upper extremities. CONCLUSION: The trade-off between acceptable trunk flexion and shoulder abduction was considered to determine a reasonable effective working height (by measuring downward from worker's elbow height) in the range from 25 cm to 35 cm with a mean 30 cm. This range will be valuable for hammering job design. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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