Touch Displays: The Effects of Palm Rejection Technology on Productivity, Comfort, Biomechanics and Positioning

Details

• Personal Author:
  Camilleri MJ ; Fujimoto J ; Malige A ; Rempel DM
• Description:
  Direct touch displays can improve the human-computer experience and productivity; however, the higher hand locations may increase shoulder fatigue. Palm rejection (PR) technology may reduce shoulder loads by allowing the palms to rest on the display and increase productivity by registering the touched content and fingertips through the palms rather than shoulders. The effects of PR were evaluated by having participants perform touch tasks while posture and reaction force on the display were measured. Enabling PR, during which the subjects could place the palms on the display (but were not required to), resulted in increased wrist extension, force applied to the display and productivity, and less discomfort, but had no effect on the self-selected positioning of the display. Participants did not deliberately place their palms on the display; therefore, there was no reduction in shoulder load and the increased productivity was not due to improved hand registration. The increased productivity may have been due to reduced interruptions from palm contacts or reduced motor control demands. [Description provided by NIOSH]
• Subjects:
  Computers Ergonomics Musculoskeletal Diseases Musculoskeletal System Occupational Health Safety
• Keywords:
  Author Keywords: Tablet Computer Equipment Gesture Interaction MSD Musculoskeletal Disorders Posture Shoulder Task Performance Touchscreen Upper Extremities Wrist

  More +
• ISSN:
  0014-0139
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  California ; OSHA Region 9
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  56
• Issue:
  12
• NIOSHTIC Number:
  nn:20053716
• Citation:
  Ergonomics 2013 Dec; 56(12):1850-1862
• Contact Point Address:
  Matt J. Camilleri, Department of Bioengineering, University of California, Berkeley, CA, USA
• Email:
  matt.camilleri@berkeley.edu
• Federal Fiscal Year:
  2014
• Performing Organization:
  University of California at San Francisco
• Peer Reviewed:
  True
• Start Date:
  20090901
• Source Full Name:
  Ergonomics
• End Date:
  20130831
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:8401087d7a55243cc63274b77d4db874d38abcb293c6c6a256db64f10a6a755d628bae960714cb708c2282f47e663f2bb9776dcfadb7857b5f2f082098805819
• Download URL:
  https://stacks.cdc.gov/view/cdc/216428/cdc_216428_DS1.pdf
• File Type:
  [PDF - 572.62 KB ]