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Suspension Tolerance in Men and Women Wearing Safety Harnesses - FY 07

NOTE: This page is archived for historical purposes and is no longer being maintained or updated.


  • Provide data on tolerable suspension time for men and women wearing full-body safety harnesses with back and chest attachment points
Woman suspended from a harness

Applicable Standards

  • 29 CFR 1910.132, 1915.159,1926.503
  • ANSI Z359.1
  • CAN/CSA Z259.10

Key Partners

  • None


  • Standard setting committees
  • Safety harness manufacturers

Project Scope

  • Men and women were suspended while wearing appropriately sized harnesses
  • Blood pressure, heart rate, pulse oximetry, respiration, mid-thigh circumference, and subjective responses were continuously monitored
  • Time to medical symptoms or voluntary termination was measured


  • Establish databases on tolerable human suspension time
  • Disseminate findings to the International Society for Fall Prevention, American Society of Safety Engineers, and other standards-setting organizations


  • Encourage standards organizations to make improvements in national/international safety harness standards


  • None
Page last modified: August 17, 2007
Page last reviewed: August 17, 2007 (archived document)
Content Source: National Institute for Occupational Safety and Health (NIOSH)