| 1. |
- Blomkvist, Anna-Christina, et al.
(author)
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Computer usage with cold hands : an experiment with pointing devices
- 2000
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In: International Journal of Occupational Safety and Ergonomics. - : Informa UK Limited. - 1080-3548 .- 2376-9130. ; 6:4, s. 429-450
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Journal article (peer-reviewed)abstract
- Computers are used in the outdoors and in connection with cold store work. Cold hand and fingers limit data input, as studied here. Six input devices; trackballs, pens, and a mouse were tested by 19 participants in a Fitts' target acquisition task with 2 target sizes under 2 experimental conditions; warm and cold right hand. Measures were acquisition times, number of errors, participant's preferences, and observed handling of the devices. Effects of device, target size, and cold were significant. Learning and attempts to improve handgrip were confirmed. Large enough targets, a thick pen, and a mouse make computer work practicable in the cold. Direct visual feedback, as with pen on template with target images, shortened acquisition times by half a second.
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| 2. |
- Blomkvist, Anna-Christina, et al.
(author)
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Computer use in cold environments
- 2000
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In: Applied Ergonomics. - 0003-6870 .- 1872-9126. ; 31:3, s. 239-245
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Journal article (peer-reviewed)abstract
- This study addresses computer work in cold environments with the two-fold aim to explore conditions for such work, and to add knowledge about the use of fingers at data entry in the cold. Five workplaces were visited and work contents and use of computers are briefly described. Effects of work in the cold were in line with those mentioned in the literature, and manual lifting of heavy goods the most impairing activity. Subjects contended with strenuous working postures--holding the computers in their hands or arms--and with cold fingers. Individual fingering for data input was noted. Forefinger or a pen were used, and a pen is recommendable for input, either as a touch pen or, simply to press the keys. A supportive rack could be recommended for portable workstations.
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| 3. |
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| 4. |
- Blomkvist, Anna-Christina, et al.
(author)
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Elkontoro
- 1996
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Reports (other academic/artistic)
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| 5. |
- Blomkvist, Anna-Christina, et al.
(author)
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Hypersensitivity to electricity and preferred remedial measures
- 1995
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In: Work with display units 94. - Amsterdam : Elsevier. - 0444821457 ; , s. 351-356
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Conference paper (peer-reviewed)abstract
- There will always be an element of concern connecting electromagnetism with health issues. As one expression for this concern, hypersensitivity to electricity has been debated in Sweden for ten years. The present debate stems from symptoms such as reactions from the nervous system, skin irritations and general symptoms of disease, and causes are often attributed to VDUs and/or other electric equipment and high voltage transmission. The paper discusses a study of office workers and concludes that persons hypersensitive to electricity form no apparent subgroups, and there is no obvious way to select means for rehabilitation for them (
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| 6. |
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| 7. |
- Hjortsberg, Susanne, et al.
(author)
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Electro-magnetic field in the offiece environment
- 1993
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In: 3rd International conference on modern building materials, structures and techniques. - Vilnius : Politechnika Gdanska.
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Conference paper (peer-reviewed)
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| 8. |
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| 9. |
- Shahnavaz, Houshang, et al.
(author)
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Objective and subjective evaluation of ergonomic aspects of VDU filters
- 1989
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In: Displays (Guildford). - : Elsevier BV. - 0141-9382 .- 1872-7387. ; 10:1, s. 29-36
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Journal article (peer-reviewed)abstract
- A study has been carried out to evaluate the effects of some commercially available filters for VDUs both from an objective and subjective viewpoint. Questionnaires were sent to filter manufacturers to assess their attitudes and opinions. Examination of colour, light absorption, change of contrast between character and background, and electrostatic measures were made in a university laboratory, and case studies were enacted in several offices. Ergonomic evaluations are discussed.
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| 10. |
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