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Exploring physical exposures and identifying high-risk work tasks within the floor layer trade.

Authors
McGaha-J; Miller-K; Descatha-A; Welch-L; Buchholz-B; Evanoff-B; Dale-AM
Source
Appl Ergon 2014 Jul; 45(4):857-864
NIOSHTIC No.
20045486
Abstract
INTRODUCTION: Floor layers have high rates of musculoskeletal disorders yet few studies have examined their work exposures. This study used observational methods to describe physical exposures within floor laying tasks. METHODS: We analyzed 45 videos from 32 floor layers using Multimedia-Video Task Analysis software to determine the time in task, forces, postures, and repetitive hand movements for installation of four common flooring materials. We used the WISHA checklists to define exposure thresholds. RESULTS: Most workers (91%) met the caution threshold for one or more exposures. Workers showed high exposures in multiple body parts with variability in exposures across tasks and for different materials. Prolonged exposures were seen for kneeling, poor neck and low back postures, and intermittent but frequent hand grip forces. CONCLUSIONS: Floor layers experience prolonged awkward postures and high force physical exposures in multiple body parts, which probably contribute to their high rates of musculoskeletal disorders.
Keywords
Floors; Workers; Work-environment; Musculoskeletal-system; Musculoskeletal-system-disorders; Exposure-levels; Construction-workers; Construction-industry; Exposure-assessment; Task-performance; Posture; Repetitive-work; Hand-injuries; Risk-factors; Physical-reactions; Physical-stress; Physiological-effects; Physiology; Author Keywords: Musculoskeletal disorders; Observational assessment; Construction trades
Contact
Ann Marie Dale, Washington University School of Medicine, Division of General Medical Sciences, Campus Box 8005, 660 S. Euclid Avenue, Saint Louis, MO 63110
CODEN
AERGBW
Publication Date
20140701
Document Type
Journal Article
Email Address
adale@dom.wustl.edu
Funding Type
Grant; Cooperative Agreement
Fiscal Year
2014
NTIS Accession No.
NTIS Price
Identifying No.
Grant-Number-R01-OH-008017; Cooperative-Agreement-Number-U60-OH-009762; M122014
Issue of Publication
4
ISSN
0003-6870
Source Name
Applied Ergonomics
State
MO; MD; MA
Performing Organization
Washington University - St. Louis, Missouri
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