Touch displays : the effects of palm rejection technology on productivity, comfort, biomechanics and positioning

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<title>Touch displays</title>
<subTitle>: the effects of palm rejection technology on productivity, comfort, biomechanics and positioning</subTitle>
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<abstract displayLabel="Summary">Direct touch displays can improve the humancomputer 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.</abstract>
<note type="statement of responsibility">Matt J. Camilleri...[et.al]</note>
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<title>Ergonomics : the international journal of research and practice in human factors and ergonomics</title>
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<publisher>Oxon [United Kingdom] : Taylor & Francis, 2010-</publisher>
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<identifier type="issn">0014-0139</identifier>
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<text>02/12/2013 Volumen 56 Número 12 - diciembre 2013 </text>
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