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Evaluation of workers' perceived sense of slip and effect of prior knowledge of slipperiness during task performance on slippery surface.

Authors
Chiou-S; Bhattacharya-A; Succop-PA
Source
Am Ind Hyg Assoc J 2000 Jul/Aug; 61(4):492-500
NIOSHTIC No.
20020641
Abstract
Forty healthy industrial workers (age: 41.0-14.9 years) were tested for postural stability for three simulated tasks: (1) standing upright; (2) rapid trunk movement; and (3) lateral reach during lifting. These tasks were performed on four levels of slippery surfaces under different environmental lighting with new or workers' own old shoes. Prior to postural stability tests, each subject was given the opportunity to assess the surface slipperiness that he or she would encounter in the subsequent postural stability tests. A perceived sense of slip (PSOS) scale was administrated immediately after each test to determine subjects' PSOS. Subjects' postural sway and instability during task performance was determined by using a strain gauge type force platform. Results from this study indicate that subjects who were cautious in assessing surface slipperiness had less postural instability during task performance. Subjects could perceive the likely slips due to the change in task (p=0.0001) and surface slipperiness (p=0.0001). The PSOS scale is reproducible, easy to use, and provides a simple way to evaluate potential slip hazards in the workplace. Results from this study should aid understanding of the factors critical to maintaining postural stability on slippery surfaces, and will help to develop guidelines for safety training and identify slip hazards in the workplace.
Keywords
Posture; Industrial-exposures; Age-groups; Age-factors; Surface-properties; Occupational-hazards; Occupations
Contact
Division of Safety Research, National Institute for Occupational Safety and Health, Morgantown, WV 26505
CODEN
AIHAAP
Publication Date
20000701
Document Type
Journal Article
Fiscal Year
2000
NTIS Accession No.
NTIS Price
Issue of Publication
4
ISSN
0002-8894
NIOSH Division
DSR
Source Name
American Industrial Hygiene Association Journal
State
OH
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