The Experts below are selected from a list of 2001 Experts worldwide ranked by ideXlab platform
Arne Aarås - One of the best experts on this subject based on the ideXlab platform.
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and Psychosocial Stress Change for Visual Display Unit (VDU) Operators When Moving From a Single-Occupancy Office to an Office Landscape?
2016Co-Authors: Will Musculoskeletal Visual, Tor Martin Kvikstad, Magne Helland, Tore Garthus, Arne AaråsAbstract:This study investigated the effect of moving from single-occupancy offices to a landscape environment. Thirty-two Visual Display Unit (VDU) operators reported no significant change in Visual discomfort. Lighting conditions and glare reported subjectively showed no significant correlation with Visual discomfort. Experience of pain was found to reduce subjectively rated work capacity during VDU tasks. The correlation between Visual discomfort and reduced work capacity for single-occupancy offices was rs =.88 (p =.000) and for office landscape rs =.82 (p =.000). Eye blink rate during habitual VDU work was recorded for 12 operators randomly selected from the 32 participants in the office landscape. A marked drop in eye blink rate during VDU work was found compared to eye blink rate during easy conversation. There were no significant changes in pain intensity in the neck, shoulder, forearm, wrist/hand, back or headache (.24 ≤ p ≤.67). Pain levels in different body areas were significantly correlated with reduced work capacity,.77 < rs <.99 (p =.000). VDU workplaces lighting conditions office landscape Visual discomfort musculoskeletal illness eye blinking o 1
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will musculoskeletal and Visual stress change when Visual Display Unit vdu operators move from small offices to an ergonomically optimized office landscape
Applied Ergonomics, 2011Co-Authors: Magne Helland, Gunnar Horgen, Tor Martin Kvikstad, Tore Garthus, Arne AaråsAbstract:This study investigated the effect of moving from small offices to a landscape environment for 19 Visual Display Unit (VDU) operators at Alcatel Denmark AS. The operators reported significantly improved lighting condition and glare situation. Further, Visual discomfort was also significantly reduced on a Visual Analogue Scale (VAS). There was no significant correlation between lighting condition and Visual discomfort neither in the small offices nor in the office landscape. However, Visual discomfort correlated significantly with glare in small offices i.e. more glare is related to more Visual discomfort. This correlation disappeared after the lighting system in the office landscape had been improved. There was also a significant correlation between glare and itching of the eyes as well as blurred vision in the small offices, i.e. more glare more Visual symptoms. Experience of pain was found to reduce the subjective assessment of work capacity during VDU tasks. There was a significant correlation between Visual discomfort and reduced work capacity in small offices and in the office landscape. When moving from the small offices to the office landscape, there was a significant reduction in headache as well as back pain. No significant changes in pain intensity in the neck, shoulder, forearm, and wrist/hand were observed. The pain levels in different body areas were significantly correlated with subjective assessment of reduced work capacity in small offices and in the office landscape. By careful design and construction of an office landscape with regard to lighting and Visual conditions, transfer from small offices may be acceptable from a Visual-ergonomic point of view.
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musculoskeletal Visual and psychosocial stress in vdu operators after moving to an ergonomically designed office landscape
Applied Ergonomics, 2008Co-Authors: Magne Helland, Gunnar Horgen, Tor Martin Kvikstad, Tore Garthus, Jan Richard Bruenech, Arne AaråsAbstract:This study investigated the effect of moving from single occupancy offices to a landscape environment. Thirty-four Visual Display Unit (VDU) operators reported significantly worsened condition of lighting and glare in addition to increased Visual discomfort. For Visual discomfort, the difference with 95% confidence interval was 10.7 (1.9-19.5) Visual Analog Scale (VAS) as group mean value. The most reasonable explanation for these results may be that the operators were glared from high luminance from the windows, when the Venetian blinds were not properly used. Glare was significantly correlated with Visual discomfort, rs=0.35. Both illuminance and luminance in the work area, and contrast reduction on the VDU screen were in line with recommendations from CIE for VDU work. In a regression analysis, the Visual discomfort explained 53% of the variance in the neck and shoulder pain. In the office landscape, the eye blink rate during habitual VDU work was recorded for 12 randomly selected operators from the 34 participants. A marked drop in eye blink rate during VDU work was found when this was compared to "easy conversation" (VDU work, mean=9.7 blinks per minute; "easy conversation," mean=21.4 blinks per minute). Participants reported many of the organizational and psychosocial conditions and work factors worse when landscape office was compared to single occupancy office. These factors may have influenced the musculoskeletal pain. However, the pain level was still low at 6 years and not significantly different when compared with the start of the study period, except for a small but significant increase in shoulder pain. In this study, Visual discomfort is clearly associated with pain in the neck and shoulder area.
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will musculoskeletal Visual and psychosocial stress change for Visual Display Unit vdu operators when moving from a single occupancy office to an office landscape
International Journal of Occupational Safety and Ergonomics, 2008Co-Authors: Magne Helland, Gunnar Horgen, Tor Martin Kvikstad, Tore Garthus, Arne AaråsAbstract:This study investigated the effect of moving from single-occupancy offices to a landscape environment. Thirty-two Visual Display Unit (VDU) operators reported no significant change in Visual discomfort. Lighting conditions and glare reported subjectively showed no significant correlation with Visual discomfort. Experience of pain was found to reduce subjectively rated work capacity during VDU tasks. The correlation between Visual discomfort and reduced work capacity for single-occupancy offices was rs = .88 (p = .000) and for office landscape rs = .82 (p = .000). Eye blink rate during habitual VDU work was recorded for 12 operators randomly selected from the 32 participants in the office landscape. A marked drop in eye blink rate during VDU work was found compared to eye blink rate during easy conversation. There were no significant changes in pain intensity in the neck, shoulder, forearm, wrist/hand, back or headache (.24 < p < .67). Pain levels in different body areas were significantly correlated with ...
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can Visual discomfort influence on muscle pain and muscle load for Visual Display Unit vdu workers
International Conference on Ergonomics and Health Aspects of Work with Computers, 2007Co-Authors: Arne Aarås, Gunnar Horgen, Magne HellandAbstract:In three different prospective epidemiological studies, correlation between Visual discomfort and average pain intensity in the neck and shoulder, were 0.30
Gunnar Horgen - One of the best experts on this subject based on the ideXlab platform.
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will musculoskeletal and Visual stress change when Visual Display Unit vdu operators move from small offices to an ergonomically optimized office landscape
Applied Ergonomics, 2011Co-Authors: Magne Helland, Gunnar Horgen, Tor Martin Kvikstad, Tore Garthus, Arne AaråsAbstract:This study investigated the effect of moving from small offices to a landscape environment for 19 Visual Display Unit (VDU) operators at Alcatel Denmark AS. The operators reported significantly improved lighting condition and glare situation. Further, Visual discomfort was also significantly reduced on a Visual Analogue Scale (VAS). There was no significant correlation between lighting condition and Visual discomfort neither in the small offices nor in the office landscape. However, Visual discomfort correlated significantly with glare in small offices i.e. more glare is related to more Visual discomfort. This correlation disappeared after the lighting system in the office landscape had been improved. There was also a significant correlation between glare and itching of the eyes as well as blurred vision in the small offices, i.e. more glare more Visual symptoms. Experience of pain was found to reduce the subjective assessment of work capacity during VDU tasks. There was a significant correlation between Visual discomfort and reduced work capacity in small offices and in the office landscape. When moving from the small offices to the office landscape, there was a significant reduction in headache as well as back pain. No significant changes in pain intensity in the neck, shoulder, forearm, and wrist/hand were observed. The pain levels in different body areas were significantly correlated with subjective assessment of reduced work capacity in small offices and in the office landscape. By careful design and construction of an office landscape with regard to lighting and Visual conditions, transfer from small offices may be acceptable from a Visual-ergonomic point of view.
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musculoskeletal Visual and psychosocial stress in vdu operators after moving to an ergonomically designed office landscape
Applied Ergonomics, 2008Co-Authors: Magne Helland, Gunnar Horgen, Tor Martin Kvikstad, Tore Garthus, Jan Richard Bruenech, Arne AaråsAbstract:This study investigated the effect of moving from single occupancy offices to a landscape environment. Thirty-four Visual Display Unit (VDU) operators reported significantly worsened condition of lighting and glare in addition to increased Visual discomfort. For Visual discomfort, the difference with 95% confidence interval was 10.7 (1.9-19.5) Visual Analog Scale (VAS) as group mean value. The most reasonable explanation for these results may be that the operators were glared from high luminance from the windows, when the Venetian blinds were not properly used. Glare was significantly correlated with Visual discomfort, rs=0.35. Both illuminance and luminance in the work area, and contrast reduction on the VDU screen were in line with recommendations from CIE for VDU work. In a regression analysis, the Visual discomfort explained 53% of the variance in the neck and shoulder pain. In the office landscape, the eye blink rate during habitual VDU work was recorded for 12 randomly selected operators from the 34 participants. A marked drop in eye blink rate during VDU work was found when this was compared to "easy conversation" (VDU work, mean=9.7 blinks per minute; "easy conversation," mean=21.4 blinks per minute). Participants reported many of the organizational and psychosocial conditions and work factors worse when landscape office was compared to single occupancy office. These factors may have influenced the musculoskeletal pain. However, the pain level was still low at 6 years and not significantly different when compared with the start of the study period, except for a small but significant increase in shoulder pain. In this study, Visual discomfort is clearly associated with pain in the neck and shoulder area.
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will musculoskeletal Visual and psychosocial stress change for Visual Display Unit vdu operators when moving from a single occupancy office to an office landscape
International Journal of Occupational Safety and Ergonomics, 2008Co-Authors: Magne Helland, Gunnar Horgen, Tor Martin Kvikstad, Tore Garthus, Arne AaråsAbstract:This study investigated the effect of moving from single-occupancy offices to a landscape environment. Thirty-two Visual Display Unit (VDU) operators reported no significant change in Visual discomfort. Lighting conditions and glare reported subjectively showed no significant correlation with Visual discomfort. Experience of pain was found to reduce subjectively rated work capacity during VDU tasks. The correlation between Visual discomfort and reduced work capacity for single-occupancy offices was rs = .88 (p = .000) and for office landscape rs = .82 (p = .000). Eye blink rate during habitual VDU work was recorded for 12 operators randomly selected from the 32 participants in the office landscape. A marked drop in eye blink rate during VDU work was found compared to eye blink rate during easy conversation. There were no significant changes in pain intensity in the neck, shoulder, forearm, wrist/hand, back or headache (.24 < p < .67). Pain levels in different body areas were significantly correlated with ...
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can Visual discomfort influence on muscle pain and muscle load for Visual Display Unit vdu workers
International Conference on Ergonomics and Health Aspects of Work with Computers, 2007Co-Authors: Arne Aarås, Gunnar Horgen, Magne HellandAbstract:In three different prospective epidemiological studies, correlation between Visual discomfort and average pain intensity in the neck and shoulder, were 0.30
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will Visual discomfort among Visual Display Unit vdu users change in development when moving from single vision lenses to specially designed vdu progressive lenses
Optometry and Vision Science, 2004Co-Authors: Gunnar Horgen, Arne Aarås, Magne ThoresenAbstract:ABSTRACT:Purpose.Three types of progressive additions lenses (PAL) specially designed for VDU-work and one single vision lens were compared in a prospective field study. The aim was to investigate if these progressive lenses created a difference in the development of Visual discomfort compared to si
Magne Helland - One of the best experts on this subject based on the ideXlab platform.
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and Psychosocial Stress Change for Visual Display Unit (VDU) Operators When Moving From a Single-Occupancy Office to an Office Landscape?
2016Co-Authors: Will Musculoskeletal Visual, Tor Martin Kvikstad, Magne Helland, Tore Garthus, Arne AaråsAbstract:This study investigated the effect of moving from single-occupancy offices to a landscape environment. Thirty-two Visual Display Unit (VDU) operators reported no significant change in Visual discomfort. Lighting conditions and glare reported subjectively showed no significant correlation with Visual discomfort. Experience of pain was found to reduce subjectively rated work capacity during VDU tasks. The correlation between Visual discomfort and reduced work capacity for single-occupancy offices was rs =.88 (p =.000) and for office landscape rs =.82 (p =.000). Eye blink rate during habitual VDU work was recorded for 12 operators randomly selected from the 32 participants in the office landscape. A marked drop in eye blink rate during VDU work was found compared to eye blink rate during easy conversation. There were no significant changes in pain intensity in the neck, shoulder, forearm, wrist/hand, back or headache (.24 ≤ p ≤.67). Pain levels in different body areas were significantly correlated with reduced work capacity,.77 < rs <.99 (p =.000). VDU workplaces lighting conditions office landscape Visual discomfort musculoskeletal illness eye blinking o 1
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will musculoskeletal and Visual stress change when Visual Display Unit vdu operators move from small offices to an ergonomically optimized office landscape
Applied Ergonomics, 2011Co-Authors: Magne Helland, Gunnar Horgen, Tor Martin Kvikstad, Tore Garthus, Arne AaråsAbstract:This study investigated the effect of moving from small offices to a landscape environment for 19 Visual Display Unit (VDU) operators at Alcatel Denmark AS. The operators reported significantly improved lighting condition and glare situation. Further, Visual discomfort was also significantly reduced on a Visual Analogue Scale (VAS). There was no significant correlation between lighting condition and Visual discomfort neither in the small offices nor in the office landscape. However, Visual discomfort correlated significantly with glare in small offices i.e. more glare is related to more Visual discomfort. This correlation disappeared after the lighting system in the office landscape had been improved. There was also a significant correlation between glare and itching of the eyes as well as blurred vision in the small offices, i.e. more glare more Visual symptoms. Experience of pain was found to reduce the subjective assessment of work capacity during VDU tasks. There was a significant correlation between Visual discomfort and reduced work capacity in small offices and in the office landscape. When moving from the small offices to the office landscape, there was a significant reduction in headache as well as back pain. No significant changes in pain intensity in the neck, shoulder, forearm, and wrist/hand were observed. The pain levels in different body areas were significantly correlated with subjective assessment of reduced work capacity in small offices and in the office landscape. By careful design and construction of an office landscape with regard to lighting and Visual conditions, transfer from small offices may be acceptable from a Visual-ergonomic point of view.
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musculoskeletal Visual and psychosocial stress in vdu operators after moving to an ergonomically designed office landscape
Applied Ergonomics, 2008Co-Authors: Magne Helland, Gunnar Horgen, Tor Martin Kvikstad, Tore Garthus, Jan Richard Bruenech, Arne AaråsAbstract:This study investigated the effect of moving from single occupancy offices to a landscape environment. Thirty-four Visual Display Unit (VDU) operators reported significantly worsened condition of lighting and glare in addition to increased Visual discomfort. For Visual discomfort, the difference with 95% confidence interval was 10.7 (1.9-19.5) Visual Analog Scale (VAS) as group mean value. The most reasonable explanation for these results may be that the operators were glared from high luminance from the windows, when the Venetian blinds were not properly used. Glare was significantly correlated with Visual discomfort, rs=0.35. Both illuminance and luminance in the work area, and contrast reduction on the VDU screen were in line with recommendations from CIE for VDU work. In a regression analysis, the Visual discomfort explained 53% of the variance in the neck and shoulder pain. In the office landscape, the eye blink rate during habitual VDU work was recorded for 12 randomly selected operators from the 34 participants. A marked drop in eye blink rate during VDU work was found when this was compared to "easy conversation" (VDU work, mean=9.7 blinks per minute; "easy conversation," mean=21.4 blinks per minute). Participants reported many of the organizational and psychosocial conditions and work factors worse when landscape office was compared to single occupancy office. These factors may have influenced the musculoskeletal pain. However, the pain level was still low at 6 years and not significantly different when compared with the start of the study period, except for a small but significant increase in shoulder pain. In this study, Visual discomfort is clearly associated with pain in the neck and shoulder area.
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will musculoskeletal Visual and psychosocial stress change for Visual Display Unit vdu operators when moving from a single occupancy office to an office landscape
International Journal of Occupational Safety and Ergonomics, 2008Co-Authors: Magne Helland, Gunnar Horgen, Tor Martin Kvikstad, Tore Garthus, Arne AaråsAbstract:This study investigated the effect of moving from single-occupancy offices to a landscape environment. Thirty-two Visual Display Unit (VDU) operators reported no significant change in Visual discomfort. Lighting conditions and glare reported subjectively showed no significant correlation with Visual discomfort. Experience of pain was found to reduce subjectively rated work capacity during VDU tasks. The correlation between Visual discomfort and reduced work capacity for single-occupancy offices was rs = .88 (p = .000) and for office landscape rs = .82 (p = .000). Eye blink rate during habitual VDU work was recorded for 12 operators randomly selected from the 32 participants in the office landscape. A marked drop in eye blink rate during VDU work was found compared to eye blink rate during easy conversation. There were no significant changes in pain intensity in the neck, shoulder, forearm, wrist/hand, back or headache (.24 < p < .67). Pain levels in different body areas were significantly correlated with ...
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can Visual discomfort influence on muscle pain and muscle load for Visual Display Unit vdu workers
International Conference on Ergonomics and Health Aspects of Work with Computers, 2007Co-Authors: Arne Aarås, Gunnar Horgen, Magne HellandAbstract:In three different prospective epidemiological studies, correlation between Visual discomfort and average pain intensity in the neck and shoulder, were 0.30
Tore Garthus - One of the best experts on this subject based on the ideXlab platform.
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and Psychosocial Stress Change for Visual Display Unit (VDU) Operators When Moving From a Single-Occupancy Office to an Office Landscape?
2016Co-Authors: Will Musculoskeletal Visual, Tor Martin Kvikstad, Magne Helland, Tore Garthus, Arne AaråsAbstract:This study investigated the effect of moving from single-occupancy offices to a landscape environment. Thirty-two Visual Display Unit (VDU) operators reported no significant change in Visual discomfort. Lighting conditions and glare reported subjectively showed no significant correlation with Visual discomfort. Experience of pain was found to reduce subjectively rated work capacity during VDU tasks. The correlation between Visual discomfort and reduced work capacity for single-occupancy offices was rs =.88 (p =.000) and for office landscape rs =.82 (p =.000). Eye blink rate during habitual VDU work was recorded for 12 operators randomly selected from the 32 participants in the office landscape. A marked drop in eye blink rate during VDU work was found compared to eye blink rate during easy conversation. There were no significant changes in pain intensity in the neck, shoulder, forearm, wrist/hand, back or headache (.24 ≤ p ≤.67). Pain levels in different body areas were significantly correlated with reduced work capacity,.77 < rs <.99 (p =.000). VDU workplaces lighting conditions office landscape Visual discomfort musculoskeletal illness eye blinking o 1
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will musculoskeletal and Visual stress change when Visual Display Unit vdu operators move from small offices to an ergonomically optimized office landscape
Applied Ergonomics, 2011Co-Authors: Magne Helland, Gunnar Horgen, Tor Martin Kvikstad, Tore Garthus, Arne AaråsAbstract:This study investigated the effect of moving from small offices to a landscape environment for 19 Visual Display Unit (VDU) operators at Alcatel Denmark AS. The operators reported significantly improved lighting condition and glare situation. Further, Visual discomfort was also significantly reduced on a Visual Analogue Scale (VAS). There was no significant correlation between lighting condition and Visual discomfort neither in the small offices nor in the office landscape. However, Visual discomfort correlated significantly with glare in small offices i.e. more glare is related to more Visual discomfort. This correlation disappeared after the lighting system in the office landscape had been improved. There was also a significant correlation between glare and itching of the eyes as well as blurred vision in the small offices, i.e. more glare more Visual symptoms. Experience of pain was found to reduce the subjective assessment of work capacity during VDU tasks. There was a significant correlation between Visual discomfort and reduced work capacity in small offices and in the office landscape. When moving from the small offices to the office landscape, there was a significant reduction in headache as well as back pain. No significant changes in pain intensity in the neck, shoulder, forearm, and wrist/hand were observed. The pain levels in different body areas were significantly correlated with subjective assessment of reduced work capacity in small offices and in the office landscape. By careful design and construction of an office landscape with regard to lighting and Visual conditions, transfer from small offices may be acceptable from a Visual-ergonomic point of view.
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musculoskeletal Visual and psychosocial stress in vdu operators after moving to an ergonomically designed office landscape
Applied Ergonomics, 2008Co-Authors: Magne Helland, Gunnar Horgen, Tor Martin Kvikstad, Tore Garthus, Jan Richard Bruenech, Arne AaråsAbstract:This study investigated the effect of moving from single occupancy offices to a landscape environment. Thirty-four Visual Display Unit (VDU) operators reported significantly worsened condition of lighting and glare in addition to increased Visual discomfort. For Visual discomfort, the difference with 95% confidence interval was 10.7 (1.9-19.5) Visual Analog Scale (VAS) as group mean value. The most reasonable explanation for these results may be that the operators were glared from high luminance from the windows, when the Venetian blinds were not properly used. Glare was significantly correlated with Visual discomfort, rs=0.35. Both illuminance and luminance in the work area, and contrast reduction on the VDU screen were in line with recommendations from CIE for VDU work. In a regression analysis, the Visual discomfort explained 53% of the variance in the neck and shoulder pain. In the office landscape, the eye blink rate during habitual VDU work was recorded for 12 randomly selected operators from the 34 participants. A marked drop in eye blink rate during VDU work was found when this was compared to "easy conversation" (VDU work, mean=9.7 blinks per minute; "easy conversation," mean=21.4 blinks per minute). Participants reported many of the organizational and psychosocial conditions and work factors worse when landscape office was compared to single occupancy office. These factors may have influenced the musculoskeletal pain. However, the pain level was still low at 6 years and not significantly different when compared with the start of the study period, except for a small but significant increase in shoulder pain. In this study, Visual discomfort is clearly associated with pain in the neck and shoulder area.
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will musculoskeletal Visual and psychosocial stress change for Visual Display Unit vdu operators when moving from a single occupancy office to an office landscape
International Journal of Occupational Safety and Ergonomics, 2008Co-Authors: Magne Helland, Gunnar Horgen, Tor Martin Kvikstad, Tore Garthus, Arne AaråsAbstract:This study investigated the effect of moving from single-occupancy offices to a landscape environment. Thirty-two Visual Display Unit (VDU) operators reported no significant change in Visual discomfort. Lighting conditions and glare reported subjectively showed no significant correlation with Visual discomfort. Experience of pain was found to reduce subjectively rated work capacity during VDU tasks. The correlation between Visual discomfort and reduced work capacity for single-occupancy offices was rs = .88 (p = .000) and for office landscape rs = .82 (p = .000). Eye blink rate during habitual VDU work was recorded for 12 operators randomly selected from the 32 participants in the office landscape. A marked drop in eye blink rate during VDU work was found compared to eye blink rate during easy conversation. There were no significant changes in pain intensity in the neck, shoulder, forearm, wrist/hand, back or headache (.24 < p < .67). Pain levels in different body areas were significantly correlated with ...
Tor Martin Kvikstad - One of the best experts on this subject based on the ideXlab platform.
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and Psychosocial Stress Change for Visual Display Unit (VDU) Operators When Moving From a Single-Occupancy Office to an Office Landscape?
2016Co-Authors: Will Musculoskeletal Visual, Tor Martin Kvikstad, Magne Helland, Tore Garthus, Arne AaråsAbstract:This study investigated the effect of moving from single-occupancy offices to a landscape environment. Thirty-two Visual Display Unit (VDU) operators reported no significant change in Visual discomfort. Lighting conditions and glare reported subjectively showed no significant correlation with Visual discomfort. Experience of pain was found to reduce subjectively rated work capacity during VDU tasks. The correlation between Visual discomfort and reduced work capacity for single-occupancy offices was rs =.88 (p =.000) and for office landscape rs =.82 (p =.000). Eye blink rate during habitual VDU work was recorded for 12 operators randomly selected from the 32 participants in the office landscape. A marked drop in eye blink rate during VDU work was found compared to eye blink rate during easy conversation. There were no significant changes in pain intensity in the neck, shoulder, forearm, wrist/hand, back or headache (.24 ≤ p ≤.67). Pain levels in different body areas were significantly correlated with reduced work capacity,.77 < rs <.99 (p =.000). VDU workplaces lighting conditions office landscape Visual discomfort musculoskeletal illness eye blinking o 1
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will musculoskeletal and Visual stress change when Visual Display Unit vdu operators move from small offices to an ergonomically optimized office landscape
Applied Ergonomics, 2011Co-Authors: Magne Helland, Gunnar Horgen, Tor Martin Kvikstad, Tore Garthus, Arne AaråsAbstract:This study investigated the effect of moving from small offices to a landscape environment for 19 Visual Display Unit (VDU) operators at Alcatel Denmark AS. The operators reported significantly improved lighting condition and glare situation. Further, Visual discomfort was also significantly reduced on a Visual Analogue Scale (VAS). There was no significant correlation between lighting condition and Visual discomfort neither in the small offices nor in the office landscape. However, Visual discomfort correlated significantly with glare in small offices i.e. more glare is related to more Visual discomfort. This correlation disappeared after the lighting system in the office landscape had been improved. There was also a significant correlation between glare and itching of the eyes as well as blurred vision in the small offices, i.e. more glare more Visual symptoms. Experience of pain was found to reduce the subjective assessment of work capacity during VDU tasks. There was a significant correlation between Visual discomfort and reduced work capacity in small offices and in the office landscape. When moving from the small offices to the office landscape, there was a significant reduction in headache as well as back pain. No significant changes in pain intensity in the neck, shoulder, forearm, and wrist/hand were observed. The pain levels in different body areas were significantly correlated with subjective assessment of reduced work capacity in small offices and in the office landscape. By careful design and construction of an office landscape with regard to lighting and Visual conditions, transfer from small offices may be acceptable from a Visual-ergonomic point of view.
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musculoskeletal Visual and psychosocial stress in vdu operators after moving to an ergonomically designed office landscape
Applied Ergonomics, 2008Co-Authors: Magne Helland, Gunnar Horgen, Tor Martin Kvikstad, Tore Garthus, Jan Richard Bruenech, Arne AaråsAbstract:This study investigated the effect of moving from single occupancy offices to a landscape environment. Thirty-four Visual Display Unit (VDU) operators reported significantly worsened condition of lighting and glare in addition to increased Visual discomfort. For Visual discomfort, the difference with 95% confidence interval was 10.7 (1.9-19.5) Visual Analog Scale (VAS) as group mean value. The most reasonable explanation for these results may be that the operators were glared from high luminance from the windows, when the Venetian blinds were not properly used. Glare was significantly correlated with Visual discomfort, rs=0.35. Both illuminance and luminance in the work area, and contrast reduction on the VDU screen were in line with recommendations from CIE for VDU work. In a regression analysis, the Visual discomfort explained 53% of the variance in the neck and shoulder pain. In the office landscape, the eye blink rate during habitual VDU work was recorded for 12 randomly selected operators from the 34 participants. A marked drop in eye blink rate during VDU work was found when this was compared to "easy conversation" (VDU work, mean=9.7 blinks per minute; "easy conversation," mean=21.4 blinks per minute). Participants reported many of the organizational and psychosocial conditions and work factors worse when landscape office was compared to single occupancy office. These factors may have influenced the musculoskeletal pain. However, the pain level was still low at 6 years and not significantly different when compared with the start of the study period, except for a small but significant increase in shoulder pain. In this study, Visual discomfort is clearly associated with pain in the neck and shoulder area.
-
will musculoskeletal Visual and psychosocial stress change for Visual Display Unit vdu operators when moving from a single occupancy office to an office landscape
International Journal of Occupational Safety and Ergonomics, 2008Co-Authors: Magne Helland, Gunnar Horgen, Tor Martin Kvikstad, Tore Garthus, Arne AaråsAbstract:This study investigated the effect of moving from single-occupancy offices to a landscape environment. Thirty-two Visual Display Unit (VDU) operators reported no significant change in Visual discomfort. Lighting conditions and glare reported subjectively showed no significant correlation with Visual discomfort. Experience of pain was found to reduce subjectively rated work capacity during VDU tasks. The correlation between Visual discomfort and reduced work capacity for single-occupancy offices was rs = .88 (p = .000) and for office landscape rs = .82 (p = .000). Eye blink rate during habitual VDU work was recorded for 12 operators randomly selected from the 32 participants in the office landscape. A marked drop in eye blink rate during VDU work was found compared to eye blink rate during easy conversation. There were no significant changes in pain intensity in the neck, shoulder, forearm, wrist/hand, back or headache (.24 < p < .67). Pain levels in different body areas were significantly correlated with ...
