Adoptability of Orchard Ladders with Short Rung Spacing

Details

• Personal Author:
  Duraj V ; Fathallah F ; Hunter T
• Description:
  Orchard ladders of modified rung spacing designs were tested in a lab study with thirteen human subjects. The ladders were nominally three-legged, 10 feet-long standard design, intended for uneven soft terrain typically found in orchards. The modification consisted of shorter spacing between rungs. Five ladders, each with rungs of 10, 10.5, 11, 11.5, or the standard 12 inch spacing, were custom built for this project by a commercial manufacturer of orchard ladders. Study subjects climbed the ladders that were secured into an laboratory apparatus at angles of 72, 68, and 64 degrees. Data collected included subject anthropometry, subject preference of ladder and angle, subject's rating of perceived exertion (Borg), heart rate (Polar chest strap), electromyography (BIOPAC MP150), and three-dimensional motion (YEI Technology 3-Space sensor system). No subject in the study preferred the standard ladder. This paper includes presents data on anthropometry, preference of ladder/angle combinations, heart rate, and rating of perceived exertion. [Description provided by NIOSH]
• Subjects:
  Agriculture Ergonomics Occupational Health Safety
• Keywords:
  Agricultural Workers Author Keywords: Ladder Equipment Design Equipment Testing Ladders Ratings Of Perceived Exertion Spacing Design
• ISBN:
  9781938496554
• Publisher:
  International Society for Occupational Ergonomics and Safety (ISOES)
• Document Type:
  Text
• Funding:
  Cooperative Agreement
• Genre:
  Abstract or Summary
• Place as Subject:
  California ; OSHA Region 10 ; OSHA Region 9 ; Washington
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  74
• NIOSHTIC Number:
  nn:20062232
• Citation:
  Proceedings of the XXIXth Annual Occupational Ergonomics and Safety Conference, June 1-2, 2017, Seattle, Washington. Amsterdam: International Society for Occupational Ergonomics and Safety (ISOES), 2017 Jun; :74
• Email:
  vduraj@ucdavis.edu
• Federal Fiscal Year:
  2017
• NORA Priority Area:
  Agriculture, Forestry and Fishing
• Performing Organization:
  University of California - Davis
• Peer Reviewed:
  False
• Start Date:
  20010930
• Source Full Name:
  Proceedings of the XXIXth Annual Occupational Ergonomics and Safety Conference, June 1-2, 2017, Seattle, Washington
• End Date:
  20270929
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:83a1413481bee5029edd631ac839c912ec7c01ee1ff369275eab1b507658f65e2ffd2f4092860dded46ad4f68f9124339ff42bb49e6be9b1c57f6bc9746bb780
• Download URL:
  https://stacks.cdc.gov/view/cdc/225523/cdc_225523_DS1.pdf
• File Type:
  [PDF - 1.32 MB ]