Effect of Computer Keyboard Slope and Height on Wrist Extension Angle
The goal of this study was to determine the systematic effect that varying the slope angle of a computer keyboard along with varying keyboard height (relative to elbow height) have on wrist extension angle while typing. Thirty participants typed on a keyboard whose slope was adjusted to +15°, +7.5°,...
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| Veröffentlicht in: | Human factors 2001-06, Vol.43 (2), p.287-298 |
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| creator | Simoneau, Guy G. Marklin, Richard W. |
| description | The goal of this study was to determine the systematic effect that varying the slope angle of a computer keyboard along with varying keyboard height (relative to elbow height) have on wrist extension angle while typing. Thirty participants typed on a keyboard whose slope was adjusted to +15°, +7.5°, 0°, -7.5°, and -15°. The height of the keyboard was set up such that participants' wrists were at the same height as their elbows, above their elbows, and four cm below their elbows. Results showed that as keyboard slope angle moved downward from +15° to -15°, mean wrist extension decreased approximately 13° (22° at +15° slope to 9° at -15° slope). Keyboard height had a similar effect with mean wrist extension decreasing from 21.8° when the keyboard was lower than elbow height, to 7.3° when the keyboard was higher than elbow height. Potential application of this research includes the downward sloping of computer keyboards, which could possibly be beneficial in the prevention of musculoskeletal disorders affecting the wrist |
| doi_str_mv | 10.1518/001872001775900940 |
| format | Article |
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Thirty participants typed on a keyboard whose slope was adjusted to +15°, +7.5°, 0°, -7.5°, and -15°. The height of the keyboard was set up such that participants' wrists were at the same height as their elbows, above their elbows, and four cm below their elbows. Results showed that as keyboard slope angle moved downward from +15° to -15°, mean wrist extension decreased approximately 13° (22° at +15° slope to 9° at -15° slope). Keyboard height had a similar effect with mean wrist extension decreasing from 21.8° when the keyboard was lower than elbow height, to 7.3° when the keyboard was higher than elbow height. Potential application of this research includes the downward sloping of computer keyboards, which could possibly be beneficial in the prevention of musculoskeletal disorders affecting the wrist</description><identifier>ISSN: 0018-7208</identifier><identifier>EISSN: 1547-8181</identifier><identifier>DOI: 10.1518/001872001775900940</identifier><identifier>PMID: 11592669</identifier><identifier>CODEN: HUFAA6</identifier><language>eng</language><publisher>Los Angeles, CA: SAGE Publications</publisher><subject>Adult ; Anthropometry ; Applied physiology ; Biological and medical sciences ; Biomechanical Phenomena ; Carpal tunnel syndrome ; Causes of ; Computer Terminals ; Cumulative trauma disorders ; Cumulative Trauma Disorders - prevention & control ; Elbow Joint - physiology ; Electronic data processing ; Equipment Design ; Ergonomics ; Ergonomics. Work place. Occupational physiology ; Female ; Health aspects ; Human physiology applied to population studies and life conditions. Human ecophysiology ; Human-computer interaction ; Humans ; Injuries ; Medical sciences ; Musculoskeletal system ; Overuse injuries ; Position measurement ; Posture ; Posture - physiology ; Prevention ; Prospective Studies ; Range of Motion, Articular - physiology ; Reference Values ; Sensitivity and Specificity ; Space life sciences ; Typesetting ; User-Computer Interface ; Wrist ; Wrist Joint - physiology</subject><ispartof>Human factors, 2001-06, Vol.43 (2), p.287-298</ispartof><rights>2001 INIST-CNRS</rights><rights>COPYRIGHT 2001 Sage Publications, Inc.</rights><rights>Copyright Human Factors and Ergonomics Society Summer 2001</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c594t-caa15b2e96990743c4eb9308ee9d599ad229b907591f6ccf9a4e8909fa24fee43</citedby><cites>FETCH-LOGICAL-c594t-caa15b2e96990743c4eb9308ee9d599ad229b907591f6ccf9a4e8909fa24fee43</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://journals.sagepub.com/doi/pdf/10.1518/001872001775900940$$EPDF$$P50$$Gsage$$H</linktopdf><linktohtml>$$Uhttps://journals.sagepub.com/doi/10.1518/001872001775900940$$EHTML$$P50$$Gsage$$H</linktohtml><link.rule.ids>315,782,786,21828,27933,27934,43630,43631</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=1121421$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/11592669$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Simoneau, Guy G.</creatorcontrib><creatorcontrib>Marklin, Richard W.</creatorcontrib><title>Effect of Computer Keyboard Slope and Height on Wrist Extension Angle</title><title>Human factors</title><addtitle>Hum Factors</addtitle><description>The goal of this study was to determine the systematic effect that varying the slope angle of a computer keyboard along with varying keyboard height (relative to elbow height) have on wrist extension angle while typing. Thirty participants typed on a keyboard whose slope was adjusted to +15°, +7.5°, 0°, -7.5°, and -15°. The height of the keyboard was set up such that participants' wrists were at the same height as their elbows, above their elbows, and four cm below their elbows. Results showed that as keyboard slope angle moved downward from +15° to -15°, mean wrist extension decreased approximately 13° (22° at +15° slope to 9° at -15° slope). Keyboard height had a similar effect with mean wrist extension decreasing from 21.8° when the keyboard was lower than elbow height, to 7.3° when the keyboard was higher than elbow height. Potential application of this research includes the downward sloping of computer keyboards, which could possibly be beneficial in the prevention of musculoskeletal disorders affecting the wrist</description><subject>Adult</subject><subject>Anthropometry</subject><subject>Applied physiology</subject><subject>Biological and medical sciences</subject><subject>Biomechanical Phenomena</subject><subject>Carpal tunnel syndrome</subject><subject>Causes of</subject><subject>Computer Terminals</subject><subject>Cumulative trauma disorders</subject><subject>Cumulative Trauma Disorders - prevention & control</subject><subject>Elbow Joint - physiology</subject><subject>Electronic data processing</subject><subject>Equipment Design</subject><subject>Ergonomics</subject><subject>Ergonomics. Work place. Occupational physiology</subject><subject>Female</subject><subject>Health aspects</subject><subject>Human physiology applied to population studies and life conditions. Human ecophysiology</subject><subject>Human-computer interaction</subject><subject>Humans</subject><subject>Injuries</subject><subject>Medical sciences</subject><subject>Musculoskeletal system</subject><subject>Overuse injuries</subject><subject>Position measurement</subject><subject>Posture</subject><subject>Posture - physiology</subject><subject>Prevention</subject><subject>Prospective Studies</subject><subject>Range of Motion, Articular - physiology</subject><subject>Reference Values</subject><subject>Sensitivity and Specificity</subject><subject>Space life sciences</subject><subject>Typesetting</subject><subject>User-Computer Interface</subject><subject>Wrist</subject><subject>Wrist Joint - physiology</subject><issn>0018-7208</issn><issn>1547-8181</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2001</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>8G5</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AVQMV</sourceid><sourceid>AZQEC</sourceid><sourceid>BEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><sourceid>GUQSH</sourceid><sourceid>K50</sourceid><sourceid>M1D</sourceid><sourceid>M2O</sourceid><recordid>eNqF0k-L1DAUAPAgijuufgEPUkQ8WTdJkybvOAyjKy54UPFY0vSldmmTMWlh99ubYQZm0UEJJCT55c97CSEvGX3PJNNXlDKteK6VkkApCPqIrJgUqtRMs8dktQdlFvqCPEvpllJaQyWfkgvGJPC6hhXZbp1DOxfBFZsw7ZYZY_EZ79tgYld8HcMOC-O74hqH_mdWvvgRhzQX27sZfRpyf-37EZ-TJ86MCV8c20vy_cP22-a6vPny8dNmfVNaCWIurTFMthyhBqBKVFZgCxXViNBJANNxDm2ekcBcba0DI1ADBWe4cIiiuiRvD_vuYvi1YJqbaUgWx9F4DEtqFGdaMFb_F3ImFJOSZ_j6D3gbluhzENnUotKUyRPqzYjN4F2Yo7H7HZu1AiV1vnFG786gHj1GMwaPbsjDD3l5hufS4TTYc54fvI0hpYiu2cVhMvG-YbTZf4fm7--QF706Rre0E3anJcf3z-DNEZhkzeii8XZID1xOFGeZXR1YMj2eMvSPk38D7UfFpw</recordid><startdate>20010601</startdate><enddate>20010601</enddate><creator>Simoneau, Guy G.</creator><creator>Marklin, Richard W.</creator><general>SAGE Publications</general><general>Human Factors and Ergonomics Society</general><general>Sage Publications, Inc</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QF</scope><scope>7QQ</scope><scope>7SC</scope><scope>7SE</scope><scope>7SP</scope><scope>7SR</scope><scope>7T2</scope><scope>7TA</scope><scope>7TB</scope><scope>7TK</scope><scope>7U5</scope><scope>7X2</scope><scope>7X7</scope><scope>7XB</scope><scope>88C</scope><scope>88E</scope><scope>88G</scope><scope>88I</scope><scope>8AF</scope><scope>8BQ</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>8G5</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ATCPS</scope><scope>AVQMV</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>F28</scope><scope>FR3</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>GUQSH</scope><scope>H8D</scope><scope>H8G</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>JQ2</scope><scope>K50</scope><scope>K9.</scope><scope>KR7</scope><scope>L6V</scope><scope>L7M</scope><scope>LK8</scope><scope>L~C</scope><scope>L~D</scope><scope>M0K</scope><scope>M0S</scope><scope>M0T</scope><scope>M1D</scope><scope>M1P</scope><scope>M2M</scope><scope>M2O</scope><scope>M2P</scope><scope>M7P</scope><scope>M7S</scope><scope>MBDVC</scope><scope>PADUT</scope><scope>PATMY</scope><scope>PCBAR</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PSYQQ</scope><scope>PTHSS</scope><scope>PYCSY</scope><scope>Q9U</scope><scope>S0X</scope><scope>7X8</scope></search><sort><creationdate>20010601</creationdate><title>Effect of Computer Keyboard Slope and Height on Wrist Extension Angle</title><author>Simoneau, Guy G. ; Marklin, Richard W.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c594t-caa15b2e96990743c4eb9308ee9d599ad229b907591f6ccf9a4e8909fa24fee43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2001</creationdate><topic>Adult</topic><topic>Anthropometry</topic><topic>Applied physiology</topic><topic>Biological and medical sciences</topic><topic>Biomechanical Phenomena</topic><topic>Carpal tunnel syndrome</topic><topic>Causes of</topic><topic>Computer Terminals</topic><topic>Cumulative trauma disorders</topic><topic>Cumulative Trauma Disorders - prevention & control</topic><topic>Elbow Joint - physiology</topic><topic>Electronic data processing</topic><topic>Equipment Design</topic><topic>Ergonomics</topic><topic>Ergonomics. 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Academic</collection><jtitle>Human factors</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Simoneau, Guy G.</au><au>Marklin, Richard W.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of Computer Keyboard Slope and Height on Wrist Extension Angle</atitle><jtitle>Human factors</jtitle><addtitle>Hum Factors</addtitle><date>2001-06-01</date><risdate>2001</risdate><volume>43</volume><issue>2</issue><spage>287</spage><epage>298</epage><pages>287-298</pages><issn>0018-7208</issn><eissn>1547-8181</eissn><coden>HUFAA6</coden><abstract>The goal of this study was to determine the systematic effect that varying the slope angle of a computer keyboard along with varying keyboard height (relative to elbow height) have on wrist extension angle while typing. Thirty participants typed on a keyboard whose slope was adjusted to +15°, +7.5°, 0°, -7.5°, and -15°. The height of the keyboard was set up such that participants' wrists were at the same height as their elbows, above their elbows, and four cm below their elbows. Results showed that as keyboard slope angle moved downward from +15° to -15°, mean wrist extension decreased approximately 13° (22° at +15° slope to 9° at -15° slope). Keyboard height had a similar effect with mean wrist extension decreasing from 21.8° when the keyboard was lower than elbow height, to 7.3° when the keyboard was higher than elbow height. Potential application of this research includes the downward sloping of computer keyboards, which could possibly be beneficial in the prevention of musculoskeletal disorders affecting the wrist</abstract><cop>Los Angeles, CA</cop><pub>SAGE Publications</pub><pmid>11592669</pmid><doi>10.1518/001872001775900940</doi><tpages>12</tpages></addata></record> |
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| subjects | Adult Anthropometry Applied physiology Biological and medical sciences Biomechanical Phenomena Carpal tunnel syndrome Causes of Computer Terminals Cumulative trauma disorders Cumulative Trauma Disorders - prevention & control Elbow Joint - physiology Electronic data processing Equipment Design Ergonomics Ergonomics. Work place. Occupational physiology Female Health aspects Human physiology applied to population studies and life conditions. Human ecophysiology Human-computer interaction Humans Injuries Medical sciences Musculoskeletal system Overuse injuries Position measurement Posture Posture - physiology Prevention Prospective Studies Range of Motion, Articular - physiology Reference Values Sensitivity and Specificity Space life sciences Typesetting User-Computer Interface Wrist Wrist Joint - physiology |
| title | Effect of Computer Keyboard Slope and Height on Wrist Extension Angle |
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