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Bergquist, Karin
Publications (6 of 6) Show all publications
Bergquist, K. & Holmér, I. (1997). A method for dynamic measurement of the resistance to dry heat exchange by footwear (ed.). Paper presented at . Applied Ergonomics, 28(5-6), 383-388
Open this publication in new window or tab >>A method for dynamic measurement of the resistance to dry heat exchange by footwear
1997 (English)In: Applied Ergonomics, ISSN 0003-6870, E-ISSN 1872-9126, Vol. 28, no 5-6, p. 383-388Article in journal (Refereed) Published
Abstract [en]

Five different types of cold protective footwear have been tested with regard to their resistance to dry heat loss (i.e. the insulation) with a new electrically heated foot model. The model is able to simulate ‘walking' movements in order to provide a more realistic simulation of wear conditions. Thermal insulation of shoes with and without a steel toe cap was the same. The insulating properties during simulated walking movements were 10-25% lower compared with static conditions. For two of the shoe models a significantly lower insulation value for the sole area was obtained when adding a weight of 30 kg. A significant difference could also be found between the insulation values of two different sizes of one of the models. Measurements with the standard method (EN 344) correlated well with the local insulation value of the sole part of the thermal foot. Correlation with the insulation value for the whole shoe was much less, variation was bigger and ranking in terms of cold protection differed between methods. The electrically heated foot model appears to provide a reproducible, accurate and more realistic method for measuring the insulation properties of shoes than EN 344.

National Category
Production Engineering, Human Work Science and Ergonomics
Research subject
Industrial Work Environment
Identifiers
urn:nbn:se:ltu:diva-11659 (URN)10.1016/S0003-6870(96)00079-8 (DOI)A1997YE60600009 ()2-s2.0-0031258672 (Scopus ID)aac40e80-d496-11db-8550-000ea68e967b (Local ID)aac40e80-d496-11db-8550-000ea68e967b (Archive number)aac40e80-d496-11db-8550-000ea68e967b (OAI)
Note
Godkänd; 1997; 20070317 (ysko)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved
Bergquist, K. & Abeysekera, J. (1996). Quality function deployment (QFD) - A means for developing usable products (ed.). International Journal of Industrial Ergonomics, 18(4), 269-275
Open this publication in new window or tab >>Quality function deployment (QFD) - A means for developing usable products
1996 (English)In: International Journal of Industrial Ergonomics, ISSN 0169-8141, E-ISSN 1872-8219, Vol. 18, no 4, p. 269-275Article in journal (Refereed) Published
Abstract [en]

In order to develop usable products, human needs and requirements have to be taken into consideration. By employing the QFD (Quality Function Deployment) method the human needs are systematically matched with the product characteristics, which can help to improve the product quality. In this paper the use of QFD in the area of ergonomics is discussed and a case study is presented, The QFD method was used in the case study to translate the needs of safety shoe users in the cold climate into product characteristics. The QFD analysis of the safety shoes revealed that the characteristics of the steel toecap were receiving the highest overall weighting, which means that improving the design of the steel toecap would lead to higher customer satisfaction. Relevance to industryThe importance of developing products that meet the customer or human needs is a priority area in the product development process. With knowledge in ergonomics it is possible to reveal information of the human needs and requirements. However, in the product development process it also is important to match the human needs with the product characteristics, which can be achieved by using the QFD method. The knowledge of ergonomics and the use of the QFD method are therefore useful tools in designing high quality products.

National Category
Production Engineering, Human Work Science and Ergonomics
Research subject
Industrial Work Environment
Identifiers
urn:nbn:se:ltu:diva-4174 (URN)10.1016/0169-8141(95)00051-8 (DOI)A1996VH50100005 ()2-s2.0-0030272092 (Scopus ID)21223e30-d4ab-11db-8550-000ea68e967b (Local ID)21223e30-d4ab-11db-8550-000ea68e967b (Archive number)21223e30-d4ab-11db-8550-000ea68e967b (OAI)
Note

Godkänd; 1996; 20070317 (ysko)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved
Abeysekera, J. & Bergquist, K. (1996). The need for research on human factors regarding personal protective devices in the cold environment (ed.). In: (Ed.), James S. Johnson; S.Z. Mansdorf (Ed.), Performance of protective clothing: . Paper presented at International Symposium on Performance of Protective Clothing : 25/01/1994 - 27/01/1994. West Conshohocken, Pa: ASTM International, 5
Open this publication in new window or tab >>The need for research on human factors regarding personal protective devices in the cold environment
1996 (English)In: Performance of protective clothing / [ed] James S. Johnson; S.Z. Mansdorf, West Conshohocken, Pa: ASTM International, 1996, Vol. 5Conference paper, Published paper (Refereed)
Abstract [en]

The human factors or wearability needs of personal protective devices (ppd) and clothing (ppc) worn in the cold environment become more important as they must compromise with, and be adapted to, the clothing worn for cold protection. The occupational risks among outdoor workers in the cold can be aggravated if the wearability demands of ppd are not met. Failure to adequately meet user needs in currently used ppd in the cold environment has resulted in discomfort, injury, non-use and performance decrement among outdoor workers, particularly in the extreme cold regions. A preliminary study consisting of a literature survey in popular data bases and questionnaire survey among users of ppd, were carried out to ascertain what studies have already been conducted in this area and whether a wearability problem really exists among users, respectively. The literature revealed some specific areas where wearability problems exist and some research carried out on methods of testing of ergonomic characteristics of ppd. The questionnaire among ppd users in the cold climate confirmed that the workers do confront many inadequacies in the use of ppd. A case study carried out on ergonomic demands of safety shoes in the cold climate among users, manufacturers and experts revealed a similar trend of demands and priorities in ergonomics of shoes among all three groups. From the findings of the preliminary study it can be concluded that human factors research in ppd and particularly ppd worn on body extremities, viz. safety helmets, shoes and gloves, for use in the cold environment, seem urgent. Some research needs in the development of methods of testing for ppd evaluation are suggested

Place, publisher, year, edition, pages
West Conshohocken, Pa: ASTM International, 1996
Series
ASTM Special Technical Publication, ISSN 0066-0558 ; 1237
National Category
Production Engineering, Human Work Science and Ergonomics
Research subject
Industrial Work Environment
Identifiers
urn:nbn:se:ltu:diva-40739 (URN)10.1520/STP14082S (DOI)ffa31b80-0258-11dd-9241-000ea68e967b (Local ID)0-8031-1987-9 (ISBN)ffa31b80-0258-11dd-9241-000ea68e967b (Archive number)ffa31b80-0258-11dd-9241-000ea68e967b (OAI)
Conference
International Symposium on Performance of Protective Clothing : 25/01/1994 - 27/01/1994
Note

Godkänd; 1996; 20080404 (ysko)

Available from: 2016-10-03 Created: 2016-10-03 Last updated: 2018-02-06Bibliographically approved
Bergquist, K. (1995). Ergonomiska krav på skyddsskor i kallt klimat (ed.). (Licentiate dissertation). Paper presented at . Luleå: Luleå tekniska universitet
Open this publication in new window or tab >>Ergonomiska krav på skyddsskor i kallt klimat
1995 (Swedish)Licentiate thesis, monograph (Other academic)
Place, publisher, year, edition, pages
Luleå: Luleå tekniska universitet, 1995. p. 120
Series
Licentiate thesis / Luleå University of Technology… → 31 dec 1996, ISSN 0280-8242 ; 1995:06
National Category
Production Engineering, Human Work Science and Ergonomics
Research subject
Industrial Work Environment
Identifiers
urn:nbn:se:ltu:diva-18027 (URN)670c7490-fe5f-11dc-8b65-000ea68e967b (Local ID)670c7490-fe5f-11dc-8b65-000ea68e967b (Archive number)670c7490-fe5f-11dc-8b65-000ea68e967b (OAI)
Note

Godkänd; 1995; 20080330 (ysko)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved
Bergquist, K. & Abeysekera, J. (1994). Ergonomic aspects of safety shoes worn in a cold climate (ed.). In: (Ed.), Ergonomics for Quality Life: Proceedings of the Third Pan-Pacific Conference on Occupational Ergonomics, Seoul, Korea, 13-17 November 1994. Paper presented at Pan-Pacific Conference on Occupational Ergonomics : 13/11/1994 - 17/11/1994 (pp. 590-594). PPCOE
Open this publication in new window or tab >>Ergonomic aspects of safety shoes worn in a cold climate
1994 (English)In: Ergonomics for Quality Life: Proceedings of the Third Pan-Pacific Conference on Occupational Ergonomics, Seoul, Korea, 13-17 November 1994, PPCOE , 1994, p. 590-594Conference paper, Published paper (Refereed)
Abstract [en]

Safety shoes that are worn in a cold climate have to protect from work hazards and at the same time offer thermal comfort to the wearer. The lack of co-ordination between the two types of protection has made existing safety shoes clumsy and ill fitting. Work in the cold is more strenuous than working under normal conditions thus emphasising ergonomic or human factor aspects of safety shoes. In order to prioritize the needs of safety shoes used in the cold, questionnaire surveys were carried out among the users and manufacturers of safety shoes as well as among experts on personal protective devices. The surveys reveal that the following aspects are most important when designing safety shoes for a cold climate: fit, thermal comfort, protection from work hazards, low weight and anti-slip. To evaluate safety shoes with regard to the thermal properties a test method is being developed. The effects of air layer movements within the shoe and the foot has not previously been considered. In order to simulate real conditions, a new method for measuring the thermal properties of shoes will include foot movements taking into account heat losses due to the pumping effect. The method will be further developed to include simulated sweating.

Place, publisher, year, edition, pages
PPCOE, 1994
National Category
Production Engineering, Human Work Science and Ergonomics
Research subject
Industrial Work Environment
Identifiers
urn:nbn:se:ltu:diva-26995 (URN)04a7c090-063c-11dd-97e0-000ea68e967b (Local ID)04a7c090-063c-11dd-97e0-000ea68e967b (Archive number)04a7c090-063c-11dd-97e0-000ea68e967b (OAI)
Conference
Pan-Pacific Conference on Occupational Ergonomics : 13/11/1994 - 17/11/1994
Note

Godkänd; 1994; 20080409 (andbra)

Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2018-02-06Bibliographically approved
Bergquist, K. & Abeysekera, J. (1994). Research needs to improve wearability of personal protective devices and clothing (ppds) in the cold climate (ed.). In: (Ed.), Proceedings: Polartech '94 - International Conference on Development and Commercial Utilization of Technologies in Polar Regions, March 22-25, 1994 Luleå, Sweden. Paper presented at International Conference on Development and Commercial Utilization of Technologies in Polar Regions : 22/03/1994 - 25/03/1994 (pp. 369-375). Högskolan i Luleå
Open this publication in new window or tab >>Research needs to improve wearability of personal protective devices and clothing (ppds) in the cold climate
1994 (English)In: Proceedings: Polartech '94 - International Conference on Development and Commercial Utilization of Technologies in Polar Regions, March 22-25, 1994 Luleå, Sweden, Högskolan i Luleå , 1994, p. 369-375Conference paper, Published paper (Refereed)
Place, publisher, year, edition, pages
Högskolan i Luleå, 1994
National Category
Production Engineering, Human Work Science and Ergonomics
Research subject
Industrial Work Environment
Identifiers
urn:nbn:se:ltu:diva-35097 (URN)97c7a620-1495-11de-ae64-000ea68e967b (Local ID)97c7a620-1495-11de-ae64-000ea68e967b (Archive number)97c7a620-1495-11de-ae64-000ea68e967b (OAI)
Conference
International Conference on Development and Commercial Utilization of Technologies in Polar Regions : 22/03/1994 - 25/03/1994
Note

Godkänd; 1994; 20090319 (andbra)

Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2018-02-06Bibliographically approved

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