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Lindqvist, E., Larsson, T. J. & Borell, L. (2015). Experienced usability of assistive technology for cognitive support with respect to user goals. NeuroRehabilitation (Reading, MA), 36(1), 135-149
Open this publication in new window or tab >>Experienced usability of assistive technology for cognitive support with respect to user goals
2015 (English)In: NeuroRehabilitation (Reading, MA), ISSN 1053-8135, E-ISSN 1878-6448, Vol. 36, no 1, p. 135-149Article in journal (Refereed) Published
Abstract [en]

Studies have shown that Assistive Technology (AT) for cognitive support can support users in everyday activities. However, whether the AT actually supports the user to achieve their individual goals must further be examined. The study objective was to examine the experienced usability of features in AT for cognitive support for users with cognitive impairment. A content analysis was applied on data from interviews and field notes collected during two six-month interventions in which persons with cognitive impairment tested AT for cognitive support. Features, included in the AT support that enhanced the user's sense of control, were identified as promotional for the achievement of user goals, and some features, such as reminders, were more sensitive to the specific user's perceptions and motives. Also, features related to how the AT was maintained and communicated with other technology were very influential. The results show that easily maintained AT that fits in to the context of use increases the user's sense of control of the AT and thereby promotes the goal achievement and usability of the AT. Further, the usability of the AT is very influenced by contextual factors such as the ordinary mobile network, the Internet, and the operators.

Keywords
ADL; Stroke; cognition; dementia; home environment; technology
National Category
Engineering and Technology Other Medical Sciences not elsewhere specified
Identifiers
urn:nbn:se:kth:diva-159233 (URN)10.3233/NRE-141201 (DOI)000349326700019 ()25547777 (PubMedID)2-s2.0-84922948433 (Scopus ID)
Note

QC 20150324

Available from: 2015-01-26 Created: 2015-01-26 Last updated: 2017-12-05Bibliographically approved
Larsson, T. J., Aminoff, H. & Mridha, M. (2014). A consumers´testing approach to the usability of medical technology: Insulin pumps and CGM systems. In: Advances in Safety Management and Human Factors: . Paper presented at Applied Human Factors and Ergonomics Conference (AHFE2014); Krakow, Poland, 19-23 July, 2014 (pp. 117-128).
Open this publication in new window or tab >>A consumers´testing approach to the usability of medical technology: Insulin pumps and CGM systems
2014 (English)In: Advances in Safety Management and Human Factors, 2014, p. 117-128Conference paper, Published paper (Refereed)
Abstract [en]

Five different insulin pumps and three systems for continuous glucose monitoring were subjected to usability tests at the School of Technology and Health. Each pump was trialed and rated by 30 respondents; 20 students with no experience of diabetes and 10 diabetic pump users. Each of the CGM systems was trialed and rated by 10 non-diabetic students. All participating students were enrolled in Medical Technology (Royal Institute of Technology) or Occupational Therapy (Karolinska Institute). The technical performance of pumps and CGM systems was tested independently. The respondents handled the insulin container, the oftware, the buttons, the screen and the manual through five scenario-based tasks. The trials and the accompanying attitude items were based on the ISO definition of usability. Efficiency was measured as the proportion of respondents succeeding to perform the tasks in less than 15 minutes, combined with the average time to do so. Effectiveness was the quotient of success frequency over average performance time. Satisfaction was the average distribution on the attitude items related to software, screen, buttons and manual. All products were ranked against each other within each separate test and the rank scores accumulated. There  were significant differences in the scoring of the individual insulin pumps and CGM systems.

Keywords
Usability Testing, Medical Technology, Diabetes
National Category
Engineering and Technology Other Medical Engineering
Identifiers
urn:nbn:se:kth:diva-157802 (URN)9781495121005 (ISBN)
Conference
Applied Human Factors and Ergonomics Conference (AHFE2014); Krakow, Poland, 19-23 July, 2014
Note

20150128

Available from: 2014-12-16 Created: 2014-12-16 Last updated: 2015-01-28Bibliographically approved
Glimskär, B., Hjalmarson, J., Lundberg, S. & Larsson, T. J. (2014). A walker used as a lifting device. Disability and Rehabilitation: Assistive Technology, 9(3), 264-269
Open this publication in new window or tab >>A walker used as a lifting device
2014 (English)In: Disability and Rehabilitation: Assistive Technology, ISSN 1748-3107, E-ISSN 1748-3115, Vol. 9, no 3, p. 264-269Article in journal (Refereed) Published
Abstract [en]

Purpose: To develop assistive technology that would help an older person to arise from a kneeling position to a standing one. Methods: Developing a prototype, based on an inclusive design and then testing the prototype to verify the approach. The prototype was subsequently tested by a panel of 20 elderly users. These tests were observed and filmed. Participants' experiences of being lifted with the elevation seat were registered with the VIDAR ergonomic assessment system. Result: None of the 20 participants used a walker at that time. In response to a question of whether, assuming they might have to use a walker in the future, they thought that a walker with an elevating seat would be helpful, 18 said that it would. Two of the participants did not believe that they would ever have to use a walker. Conclusion: A simple assistive technology such as a walker equipped with an elevating seat would in many of these cases simplify matters and reduce the distress of people who fall often. In addition, such a device can allow people who fall often to live in their homes longer. For caregivers dealing frequently with people who fall, this assistive device can contribute to decreasing occupational injuries.

Keywords
Assisitve technology, elderly, falls, rising from floor
National Category
Production Engineering, Human Work Science and Ergonomics
Identifiers
urn:nbn:se:kth:diva-134203 (URN)10.3109/17483107.2013.825820 (DOI)2-s2.0-84899126679 (Scopus ID)
Note

QC 20140618

Available from: 2013-11-19 Created: 2013-11-19 Last updated: 2017-12-06Bibliographically approved
Almén, L. & Larsson, T. J. (2014). Health and safety coordinators in building projects. Built Environment Project and Asset Management, 4(3), 251-263
Open this publication in new window or tab >>Health and safety coordinators in building projects
2014 (English)In: Built Environment Project and Asset Management, ISSN 2044-124X, Vol. 4, no 3, p. 251-263Article in journal (Refereed) Published
Abstract [en]

Purpose – In order to reduce the number of injuries on construction sites, a European Directive prescribes that the clients shall appoint safety and health coordinators in their projects. The purpose of this paper is to find out who are appointed to be health and safety coordinators for the design and planning phase and what they do in order to prevent injuries on sites. Design/methodology/approach – Since the 1st of January 2009, there shall be a coordinator for the design and planning phase in Swedish construction projects. Telephone interviews were made with the coordinators in 42 Swedish building projects.

Findings – The coordinators’ education and experiences varied widely, as well as their descriptions of their duties: no duties, administration and active injury prevention. The coordinators who were classified as most active had at least one additional leading role in the projects. Research limitations/implications – The study is qualitative for an increased understanding, not a statistical reflection of the coordinator population.

Practical implications – The legislation needs to clarify whether the early conceptual phase of the project is included in the coordinator’s commission and whether she/he is supposed to participate in identifying, assessing and reducing risks through design changes. These clarifications will have an influence on when the coordinator should be appointed and what competence she/he needs. Originality/value – The study increases the understanding of how the health and safety coordinators of the planning and projecting phase of building projects perceive their mission and what factors, according to them, have an influence on what they do.

Place, publisher, year, edition, pages
Emerald Group Publishing Limited, 2014
Keywords
Qualifications, Legislation, Planning, Health and safety, Design co-ordination/co-operation, Occupational health/safety
National Category
Production Engineering, Human Work Science and Ergonomics
Identifiers
urn:nbn:se:kth:diva-156086 (URN)10.1108/BEPAM-05-2013-0012 (DOI)2-s2.0-84926284897 (Scopus ID)
Note

QC 20150217

Available from: 2014-11-21 Created: 2014-11-21 Last updated: 2015-02-23Bibliographically approved
Carlsson-Kanyama, A., Thunqvist, E.-L. & Larsson, T. J. (2014). Odla under tak i eller nära bostaden.
Open this publication in new window or tab >>Odla under tak i eller nära bostaden
2014 (Swedish)Report (Other academic)
Abstract [en]

Within a project called “The sustainable greenhouse as a complement to buildings” financed by the Delegation of sustainable cities in Sweden, researchers, consultants and students have during 2013 developed, tested and evaluated various solutions for cultivating under roofs in or close to dwellings. We included solutions such as cultivating a plot in a rooftop greenhouse, a circular cultivation balcony or to cultivate in one’s kitchen or living room using a fish and vegetable furniture, a green wall, a green lamp or a green frame attached to the wall. The practical trials were preceded by a literature survey that described good examples of cultivation under roofs in various cities around the world.The results show that here are many inspiring examples of cultivating under roofs in cities and that such cultivation has gained some momentum. Our practical trials show among others that urban agriculture seems challenging and appealing for many but that the solutions that we have tested seem to be too expensive and partly also too time-consuming. Those who like to cultivate do so because it is fun and they can get products of good quality. To lessen the environmental impacts are also a reason but here our results that productivity in urban farming has to be higher than in our trials in order for the products to be considered as “climate-friendly”. Growing fish at home showed to be rather unpopular and many thought that slaughtering the fish by themselves would be nasty. Others results from the project are a water cooled LED lamp built in four copies and successfully installed in a fish and vegetable production unit as well as drawings and costs estimates for a cultivation bench.Proposals for further studies include analysis of flight and nutrient requirements for cultivation under roofs in cities as well as measurements of productivity. More low cost solutions for cultivating under glass should also be developed. To expand and maintain interest and knowledge for cultivation under roofs in cities is not only important for increasing social sustainability and eventually the environmental one as well but also because of the need to enhance preparedness.

Abstract [sv]

Inom ett projekt kallat ”Det kretsloppsanpassade växthuset som bostadskomplement” finansierat av Delegationen för hållbara städer har forskare, konsulter och studenter under 2013 utvecklat, testat och utvärderat olika lösningar för att odla under tak i eller nära bostaden. Det har då handlat om att odla i en lott på ett takväxthus, på en rund odlingsbalkong eller i kök-eller vardagsrum med hjälp av en fisk-och grönsaksmöbel, en odlingsvägg en odlingstavla eller en odlingslampa. De praktiska försöken föregicks av en internationell litteraturöversikt som beskrev goda exempel på odling under tak i olika städer.Resultaten visar på att det finns många inspirerande exempel på odling under tak bland världens städer och att stadsodling under tak har fått viss utbredning. Våra pratiska försök visar bland annat att odling under tak verkar spännande och tilltalande för många men att de lösningar som vi testat verkar vara för dyra och delvis är för tidskrävande. De som tycker om att odla gör det främst för att det är roligt och att de får mat av god kvalitet. Att minska miljöbelastningen är ytterligare ett skäl men här visar vår studie att produktiviteten i den urbana odlingen under tak måste vara högre än i vårt begränsade försök för att produkterna skulle kunna betraktas som ”klimatanpassade”. Fiskodling hemma var ett svårsålt koncept då många tycket att det var obehagligt att slakta fisk själva. Ytterligare resultat från projektet är en vattenkyld LED lampa som byggts i fyra exemplar och framgångsrikt installerats i en fisk och grönsaksodling samt skisser och kostnadsförslag på en odlingsbänk för inomhusbruk.Förslag till fortsatt arbete innehåller analyser av ljus-och näringsbehov för odling under tak i staden samt produktivitetsmätningar liksom utveckling av lösningar som motsvarar användarnas kravprofil. Att utöka och upprätthålla intresse och kunskap för urban odling under tak är inte bara önskvärt av sociala och eventuellt miljömässiga skäl men också för att öka beredskapen.

National Category
Engineering and Technology
Identifiers
urn:nbn:se:kth:diva-145690 (URN)TRITA-CHB Rapport 2014:3 (Local ID)978-91-7595-085-3 (ISBN)TRITA-CHB Rapport 2014:3 (Archive number)TRITA-CHB Rapport 2014:3 (OAI)
Available from: 2014-05-26 Created: 2014-05-26 Last updated: 2014-05-26
Freitag, S., Seddouki, R., Dulon, M., Kersten, J. F., Larsson, T. J. & Nienhaus, A. (2014). The effect of working position on trunk posture and exertion for routine nursing tasks: An Experimental Study. Annals of Occupational Hygiene, 58(3), 317-325
Open this publication in new window or tab >>The effect of working position on trunk posture and exertion for routine nursing tasks: An Experimental Study
Show others...
2014 (English)In: Annals of Occupational Hygiene, ISSN 0003-4878, E-ISSN 1475-3162, Vol. 58, no 3, p. 317-325Article in journal (Refereed) Published
Abstract [en]

Objectives:To examine the influence of the two following factors on the proportion of time that nurses spend in a forward-bending trunk posture: (i) the bed height during basic care activities at the bedside and (ii) the work method during basic care activities in the bathroom. A further aim was to examine the connection between the proportion of time spent in a forward-bending posture and the perceived exertion.Methods:Twelve nurses in a geriatric nursing home each performed a standardized care routine at the bedside and in the bathroom. The CUELA (German abbreviation for 'computer-Assisted recording and long-Term analysis of musculoskeletal loads') measuring system was used to record all trunk inclinations. Each participant conducted three tests with the bed at different heights (knee height, thigh height, and hip height) and in the bathroom, three tests were performed with different work methods (standing, kneeling, and sitting). After each test, participants rated their perceived exertion on the 15-point Borg scale (6 = no exertion at all and 20 = exhaustion).Results:If the bed was raised from knee to thigh level, the proportion of time spent in an upright position increased by 8.2% points. However, the effect was not significant (P = 0.193). Only when the bed was raised to hip height, there was a significant increase of 19.8% points (reference: thigh level; P = 0.003) and 28.0% points (reference: knee height; P < 0.001). Bathroom tests: compared with the standing work method, the kneeling and sitting work methods led to a significant increase in the proportion of time spent in an upright posture, by 19.4% points (P = 0.003) and 25.7% points (P < 0.001), respectively. The greater the proportion of time spent in an upright position, the lower the Borg rating (P < 0.001) awarded.Conclusions:The higher the proportion of time that nursing personnel work in an upright position, the less strenuous they perceive the work to be. Raising the bed to hip height and using a stool in the bathroom significantly increase the proportion of time that nursing personnel work in an upright position. Nursing staff can spend a considerably greater proportion of their time in an ergonomic posture if stools and height-Adjustable beds are provided in healthcare institutions.

Keywords
bed height, bending, musculoskeletal disorders, nursing, perceived exertion, trunk posture
National Category
Occupational Health and Environmental Health
Identifiers
urn:nbn:se:kth:diva-143533 (URN)10.1093/annhyg/met071 (DOI)000333046700005 ()24371043 (PubMedID)2-s2.0-84896335490 (Scopus ID)
Note

QC 20140324

Available from: 2014-03-24 Created: 2014-03-24 Last updated: 2018-01-11Bibliographically approved
Larsson, T. J. (2014). The logistics of distributed aged care in a local Swedish community. In: : . Paper presented at Applied Human Factors and Ergonomics Conference (AHFE2014), 19-23 July, 2014, Krakow, Poland.
Open this publication in new window or tab >>The logistics of distributed aged care in a local Swedish community
2014 (English)Conference paper, Published paper (Refereed)
Abstract [en]

In an attempt to map the pattern of care contacts between +65 year olds with multiple medical diagnoses living at home and their formal and informal care and service providers, 62 persons in the local council of Haninge agreed to keep a diary of all their health related contact events for a period of 6 months. The participants were visited once a fortnight and their diary inputs were recorded. The data was collected during 2011, 2012 and 2013. 20 000 contact events and 28 000 activities were recorded over 10620 participant days. Background variables like marital status, type of dwelling, type of medical problems were  related to patterns of contact with health care staff, transport services, type of care services provided, importance of family and informal care providers. The result is a fairly detailed description of the logistics requirements in a system of distributed aged care with high accessibility and retained independence.

Keywords
Aged Care, Health Care Logistics, Ageing in Place
National Category
Engineering and Technology
Identifiers
urn:nbn:se:kth:diva-157808 (URN)
Conference
Applied Human Factors and Ergonomics Conference (AHFE2014), 19-23 July, 2014, Krakow, Poland
Note

QC 20150113

Available from: 2014-12-16 Created: 2014-12-16 Last updated: 2015-01-13Bibliographically approved
Larsson, T. J. (2014). The subculture of care and care-related infections: Invited paper to Occupational Risk Prevention Conference 2014. In: : . Paper presented at Occupational Risk Prevention Conference 2014 (ORP 2014); Zaragoza, Spain, 21-23 May, 2014.
Open this publication in new window or tab >>The subculture of care and care-related infections: Invited paper to Occupational Risk Prevention Conference 2014
2014 (English)Conference paper, Published paper (Refereed)
Abstract [en]

In Sweden, 10% of all hospitalised patients acquire a care-related infection; between 25 - 35000 patients annually are severely injured due to medical mistakes and between 3000 and 4000 die from erroneous procedures or acquired infections. In a study of the risk of care-related infections in an institution of special accommodation for the aged, journal data and participant observation showed a low level of infection risk, but the risk levels varied significantly between wards and the understanding of hygiene routines varied between staff. It is suggested that hygiene routines be taught as a technical professional skill for physicians, nurses and nursing aides alike.

National Category
Engineering and Technology Other Medical Sciences not elsewhere specified
Identifiers
urn:nbn:se:kth:diva-157801 (URN)
Conference
Occupational Risk Prevention Conference 2014 (ORP 2014); Zaragoza, Spain, 21-23 May, 2014
Note

QC 20150128

Available from: 2014-12-16 Created: 2014-12-16 Last updated: 2015-01-28Bibliographically approved
Larsson, T. J., Normark, M., Paulsson, P. & Åkerström, T. (2013). Allvarliga arbetsskador och långvarig sjukfrånvaro 2013: Severe work-related injury and long-term absence from work in 2013, in Swedish. Stockholm: AFA Labour market Insurances
Open this publication in new window or tab >>Allvarliga arbetsskador och långvarig sjukfrånvaro 2013: Severe work-related injury and long-term absence from work in 2013, in Swedish
2013 (Swedish)Report (Other academic)
Place, publisher, year, edition, pages
Stockholm: AFA Labour market Insurances, 2013. p. 80
Series
AFA Rapport
National Category
Engineering and Technology
Identifiers
urn:nbn:se:kth:diva-134710 (URN)
Note

QC 20140305

Available from: 2013-11-27 Created: 2013-11-27 Last updated: 2014-03-05Bibliographically approved
Hägvide, M.-L., Larsson, T. J. & Borell, L. (2013). Fall scenarios in causing older women´s hip fractures. Scandinavian Journal of Occupational Therapy, 2013(20), 21-28
Open this publication in new window or tab >>Fall scenarios in causing older women´s hip fractures
2013 (English)In: Scandinavian Journal of Occupational Therapy, ISSN 1103-8128, E-ISSN 1651-2014, Vol. 2013, no 20, p. 21-28Article in journal (Refereed) Published
Abstract [en]

Objective. Falls and fall-related injuries among older women constitute a major public health problem with huge costs for the society and personal suffering. The aim of this study was to describe and illustrate how a number of circumstances, conceptualized as a scenario, that were related to the individual, the environment, and the ongoing occupation contributed to a fall that led to a hip fracture among women. The sample included 48 women over 55 years old. Methods. Interviews were conducted during home visits and the analysis provided a descriptive picture of circumstances in the shape of a scenario related to the risk of falling. A number of scenarios were developed based on the data and named to provide an understanding of the interplay between the individual, the environment, and the ongoing occupation at the time of the fall. Results. By applying the concept of a scenario, occupational therapists can increase the awareness of fall risks among older people, and are relevant also for interior designers, architects, and town planners to consider when designing the local environment as well as furniture and other objects. 

Place, publisher, year, edition, pages
Informa Healthcare, 2013
Keywords
Occupational therapy, occupation, fall situation, fallrisks, fall prevention, environment, accidental falls
National Category
Medical and Health Sciences
Identifiers
urn:nbn:se:kth:diva-134711 (URN)10.3109/11038128.2012.661456 (DOI)000312785300004 ()2-s2.0-84871738073 (Scopus ID)
Note

QC 20140407

Available from: 2013-11-27 Created: 2013-11-27 Last updated: 2017-12-06Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0002-4068-6794

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