Determination and Evaluation of Acceptable Force Limits in Single Digit Tasks

Details

• Personal Author:
  Johnson H ; Nussbaum MA
• Description:
  Acceptable limits derived from psychophysical methodologies have been proposed, measured, and employed in a range of applications. There is little existing work, however, on such limits for single-digit exertions and relatively limited evidence on several fundamental issues related to data collection and processing of a sequence of self-regulated exertion levels. An experimental study was conducted using 14 male and 10 female participants (age range 18-31 years) from whom maximal voluntary exertions and maximal acceptable limits (MALs) were obtained using the index finger and thumb. Moderate to high levels of consistency were found for both measures between sessions separated by one day. Single MAL values, determined from a time series of exertions, were equivalent across three divergent processing methods and between values obtained from 5- and 25-min samples. A critical interpretation of these and earlier results supports continued use of acceptable limits but also suggests that they should be used with some caution and not equated with safe limits. This research can be applied toward future development of exertion limits based on perceived acceptability. [Description provided by NIOSH]
• Subjects:
  Age Factors Aging Demography Occupational Health Safety Sex Characteristics
• Keywords:
  Age-factors Age-groups Data-processing Demographic-characteristics Physiology Sex-factors
• ISSN:
  0018-7208
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  OSHA Region 3 ; Virginia
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  44
• Issue:
  4
• NIOSHTIC Number:
  nn:20031283
• Citation:
  Hum Factors 2002 Winter; 44(4):545-556
• Email:
  nussbaum@vt.edu
• Federal Fiscal Year:
  2003
• Performing Organization:
  Virginia Polytechnic Institute and State University, Blacksburg
• Peer Reviewed:
  True
• Start Date:
  20010701
• Source Full Name:
  Human Factors
• End Date:
  20260630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:4e7f56cd6f0f34f5fdb8ff384d2b58760a4ab4af0416541ed09c69e5c95418c209e6afc3619fdc729858ca84f7b1c59ca1909e8a406ca9bf861b83050381a7c7
• Download URL:
  https://stacks.cdc.gov/view/cdc/191577/cdc_191577_DS1.pdf
• File Type:
  [PDF - 151.87 KB ]