The impact of computer display height and desk design on 3D posture during information technology work by young adults

Straker, Leon; Burgess-Limerick, Robin; Pollock, Clare; Murray, Kevin; Netto, Kevin; Coleman, Jemma; Skoss, Rachel

doi:10.1016/j.jelekin.2006.10.007

Cited by 72 publications

(60 citation statements)

References 48 publications

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“…The aim of this study was to assess the independent and interactive effects of display height and forearm support on neck and upper limb muscle activity during work with paper and computer. The results of this study provide complementary evidence to the posture data collected during the study and reported in a companion paper (Straker et al, 2008).…”

Section: Interaction Effects Of Display Height and Forearm Support Onsupporting

confidence: 77%

“…In our study, the high display condition resulted in surprisingly small reductions in CES (À2%) muscle activity from the mid display condition despite substantial reductions in head (15°) and neck (6°) flexion and gaze angle (23°) (Straker et al, 2008). Fig.…”

Section: Discussionmentioning

confidence: 43%

“…In a companion paper (Straker et al, 2008) we have reported new data and reviewed prior evidence for the effect of display height and forearm support on posture. In this paper, we review the evidence for the effect of display height and forearm support on muscle activity.…”

Section: Introductionmentioning

confidence: 99%

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The impact of computer display height and desk design on muscle activity during information technology work by young adults

Straker

Pollock

Burgess-Limerick

et al. 2008

Journal of Electromyography and Kinesiology

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Computer display height and desk design are believed to be important workstation features and are included in international standards and guidelines. However, the evidence base for these guidelines is lacking a comparison of neck/shoulder muscle activity during computer and paper tasks and whether forearm support can be provided by desk design. This study measured the spinal and upper limb muscle activity in 36 young adults whilst they worked in different computer display, book and desk conditions. Display height affected spinal muscle activity with paper tasks resulting in greater mean spinal and upper limb muscle activity. A curved desk resulted in increased proximal muscle activity. There was no substantial interaction between display and desk. Crown

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Section: Interaction Effects Of Display Height and Forearm Support Onsupporting

confidence: 77%

Section: Discussionmentioning

confidence: 43%

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The impact of computer display height and desk design on muscle activity during information technology work by young adults

Straker

Pollock

Burgess-Limerick

et al. 2008

Journal of Electromyography and Kinesiology

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“…The location of each marker was recorded and automatically digitized using DARTFISH software (Dartfish Co., Ltd., Lausanne, Switzerland). Head angle was defined as the angle between the vertical and the line through the tragus and the lateral orbital margin, and neck angle was defined as the angle between the vertical and the line through the C7 spinous process and the tragus [8,[14][15][16]. Trunk tilt angle was defined as the angle between the vertical and the line joining the trochanter and C7.…”

Section: Postural Measurementmentioning

confidence: 99%

“…RMS was normalized to the resting RMS [16][17][18][19]. The standard is to normalize EMG to the value recorded during a maximum voluntary contraction.…”

Section: Electromyography (Emg)mentioning

confidence: 99%

The effect of a newly developed wheelchair with thoracic and pelvic support on cervical movement and muscle activity in healthy elderly women

Sawada

Hatta

Kishigami

et al. 2015

European Geriatric Medicine

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Background: As the population ages, the number of elderly individuals using a wheelchair is increasing. A standard wheelchair with a vertical backrest (S-WC) pushes on a kyphotic spine and exacerbates forward head posture. Forward head posture limits cervical movement. We used a new wheelchair (N-WC) that does not exacerbate thoracic kyphosis. The N-WC does not have a flat backrest, but has a support belt for the thorax and pelvis. The purpose of this study was to compare head-neck angle, cervical range of motion, and cervical muscle activity in the N-WC and the S-WC in healthy elderly women. Methods: We measured head-neck alignment, trunk tilt angle, cervical muscle activity, and pressure distribution on the backrest. Data from 17 subjects were analyzed. Results: Head-neck angle was close to neutral in the N-WC. The trunk was tilted further back and the area over which pressure was distributed on the backrest was expanded in the N-WC. Cervical range of motion and cervical muscle activity during neck extension were significantly greater in the N-WC than in the S-WC, but during neck flexion, there was no significant difference between the wheelchairs. Conclusion: In the N-WC, head-neck alignment was close to the neutral posture because the wheelchair support belt accommodated kyphosis and did not push the spine forward, so cervical muscle activity may be reduced when at rest. These results suggest that the N-WC prevented forward head posture and improved cervical movement and muscle activity. (C) 2014 Elsevier Masson SAS and European Union Geriatric Medicine Society. All rights reserved

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Analysis of a customized cervical collar to improve neck posture during smartphone usage: a comparative study in healthy subjects

Kuo

Fang

et al. 2019

Eur Spine J

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The impact of computer display height and desk design on 3D posture during information technology work by young adults

Cited by 72 publications

References 48 publications

The impact of computer display height and desk design on muscle activity during information technology work by young adults

The impact of computer display height and desk design on muscle activity during information technology work by young adults

The effect of a newly developed wheelchair with thoracic and pelvic support on cervical movement and muscle activity in healthy elderly women

Analysis of a customized cervical collar to improve neck posture during smartphone usage: a comparative study in healthy subjects

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