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Gupta, N., Mathiassen, S. E., Mateu-Figueras, G., Heiden, M., Hallman, D., Birk Jørgensen, M. & Holtermann, A. (2018). A comparison of standard and compositional analysis in studies addressing group differences in sedentary behavior and physical activity. International Journal of Behavioral Nutrition and Physical Activity, 15(1), Article ID 53.
Open this publication in new window or tab >>A comparison of standard and compositional analysis in studies addressing group differences in sedentary behavior and physical activity
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2018 (English)In: International Journal of Behavioral Nutrition and Physical Activity, ISSN 1479-5868, E-ISSN 1479-5868, Vol. 15, no 1, article id 53Article in journal (Refereed) Published
Abstract [en]

Background. Data on time spent in physical activity, sedentary behavior and sleep during a day is compositional in nature, i.e. they add up to a constant value, typically 100% time. Compositional data have fundamentally different properties from unconstrained data in real space, and require other processing and analysis procedures, referred to as compositional data analysis (CoDA). Most physical activity and sedentary behavior studies, however, still apply analytical procedures adapted to data in real space, which can lead to misleading results. The present study describes a comparison of time spent sedentary and in physical activity between age groups and sexes, and investigates the extent to which results obtained by CoDA differ from those obtained using standard analytical procedures.

Methods. Time spent sedentary, standing, and in physical activity (walking/running/stair climbing/cycling) during work and leisure was determined for 1-4 days among 677 blue-collar workers using accelerometry. Differences between sexes and age groups were tested using MANOVA, using both a standard approach and a CoDA approach based on isometric log-ratio transformed data.  

Results. When determining differences between sexes in time used for different activities at work, the effect size using standard analysis (η2=0.045, p<0.001) was 15% smaller than that obtained with CoDA (η2=0.052, p<0.001), although both approaches suggested a statistically significant difference. When determining corresponding differences between age groups, CoDA resulted in a 60% larger, and significant, effect size (η2=0.012, p=0.02) than that obtained with the standard approach (η2=0.008, p=0.07). During leisure, results with standard (age; η2=0.007, p=0.09; sex; η2=0.052, p<0.001) and CoDA (age; η2=0.007, p=0.09; sex; η2=0.051, p<0.001) analyses were similar.

Conclusion. Results and, hence, inferences concerning differences by age and sex in time spent sedentary and in physical activity at work differed between CoDA and standard analysis. We encourage researchers to use CoDA in similar studies, in order to adequately account for the compositional nature of data on physical activity and sedentary behavior

Keywords
CoDA, accelerometry, MANOVA, isometric log-ratio, gender, age groups
National Category
Occupational Health and Environmental Health
Identifiers
urn:nbn:se:hig:diva-25483 (URN)10.1186/s12966-018-0685-1 (DOI)000435403500001 ()29903009 (PubMedID)2-s2.0-85048626702 (Scopus ID)
Funder
Forte, Swedish Research Council for Health, Working Life and Welfare, 2009-1761
Note

Funding agencies:

- Danish government

- Danish Work Environment Research Fund grant no: 20150017496/4

Available from: 2017-11-02 Created: 2017-11-02 Last updated: 2018-07-05Bibliographically approved
Hallman, D., Mathiassen, S. E., Heiden, M., Birk Jørgensen, M., Holtermann, A., Rudolfsson, T., . . . Wahlström, J. (2018). Arbete, individ och nacksmärta: Forskning vid Forte-centret “Kroppen i arbete – från problem till potential”. In: Per Lindberg (Ed.), FALF KONFERENS 2018 Arbetet - problem eller potential för en hållbar livsmiljö? 10-12 juni 2018 i Gävle: Program och Abstracts. Paper presented at FALF KONFERENS 2018 'Arbetet - problem eller potential för en hållbar livsmiljö?', 10-12 Juni 2018, Gävle (pp. 102). Gävle: Gävle University Press
Open this publication in new window or tab >>Arbete, individ och nacksmärta: Forskning vid Forte-centret “Kroppen i arbete – från problem till potential”
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2018 (Swedish)In: FALF KONFERENS 2018 Arbetet - problem eller potential för en hållbar livsmiljö? 10-12 juni 2018 i Gävle: Program och Abstracts / [ed] Per Lindberg, Gävle: Gävle University Press , 2018, p. 102-Conference paper, Oral presentation with published abstract (Refereed)
Abstract [sv]

Besvär ifrån kroppens muskler och leder såsom nack- och ryggbesvär är fortfarande ett stort problem inom arbetslivet. Muskuloskeletal diagnos är den vanligaste orsaken till lång sjukfrånvaro inom privat sektor och näst vanligast inom kommuner och landsting. Orsakerna till dessa besvär kan vara relaterade till exponering både under arbete och på fritid, men även till individfaktorer. Vår forskargrupp har en bred ansats för att fylla kunskapsluckor inom detta område och kommer att presentera resultat från flera forskningsprojekt i symposiet Arbete, individ och nacksmärta.

Långvarigt sittande har blivit alltmer vanligt förekommande i många yrkesgrupper. Långvarigt sittande och låg fysisk aktivitet har också uppmärksammats som ett betydande hälsoproblem i dagens arbetsliv och även som en möjlig riskfaktor för smärta i nacke-skuldra. Men forskningen om betydelsen av långvarigt sittande för smärta i nacke-skuldra är fortfarande begränsad. Likaså är det oklart om huvudets hållning vid sittandet och nackens funktion, exempelvis nackens rörelsefunktion och styrka, har betydelse för besvärsutveckling. Statiskt arbete med nacken i vridna och böjda positioner misstänks vara en riskfaktor för nack-skuldersmärta i yrken såsom tandläkare, men det är oklart varför vissa exponerade individer drabbas medan andra inte får ont. För de med långvarig smärta krävs ofta rehabiliterande åtgärder, och hur väl dessa åtgärder lyckas kan även det vara beroende av individens fysiska och psykosociala arbetsmiljö. Individens arbetsmiljö påverkar således inte bara risken för om man får besvär utan kan också ha betydelse för hur rehabiliteringen av besvären lyckas.

Syftet med detta symposium är att presentera studier från Centrum för belastningsskadeforskning som handlar om nacksmärta i arbetslivet, sammanfatta kunskapsläget inom området och diskutera hur arbetet kan utformas för att bli hållbart och inkluderande. De forskningsexempel som presenteras berör stillasittande och hållning i arbetslivet och dess tänkbara konsekvenser för nacksmärta och hälsa, riskfaktorer för nacksmärta i tandläkaryrket och arbetsmiljöns betydelse för resultatet av rehabilitering vid nacksmärta. Symposiet avslutas med en frågestund och gemensam diskussion.

Place, publisher, year, edition, pages
Gävle: Gävle University Press, 2018
National Category
Occupational Health and Environmental Health
Identifiers
urn:nbn:se:hig:diva-27196 (URN)978-91-88145-28-4 (ISBN)
Conference
FALF KONFERENS 2018 'Arbetet - problem eller potential för en hållbar livsmiljö?', 10-12 Juni 2018, Gävle
Funder
Forte, Swedish Research Council for Health, Working Life and WelfareAFA Insurance
Available from: 2018-06-20 Created: 2018-06-20 Last updated: 2018-06-21Bibliographically approved
Wiitavaara, B. & Heiden, M. (2018). Content and psychometric evaluations of questionnaires for assessing physical function in people with low back disorders: a systematic review of the literature. Disability and Rehabilitation
Open this publication in new window or tab >>Content and psychometric evaluations of questionnaires for assessing physical function in people with low back disorders: a systematic review of the literature
2018 (English)In: Disability and Rehabilitation, ISSN 0963-8288, E-ISSN 1464-5165Article in journal (Refereed) Epub ahead of print
Abstract [en]

Purpose: The purpose was to investigate how physical function is assessed in people with musculoskeletal disorders in the low back. Specifically:

  • Which questionnaires are used to assess physical function in people with musculoskeletal disorders in the low back?
  • What aspects of physical function do those questionnaires measure?
  • What are the measurement properties of the questionnaires?

Materials and methods: A systematic review was performed to identify questionnaires and psychometric evaluations of them. The content of the questionnaires was categorised according to the International Classification of Function, Disability and Health, and the psychometric evaluations were categorised using the COnsensus-based Standards for the selection of health Measurement Instruments (COSMIN) checklist.

Results: The questionnaires measured disability or ability to cope in everyday life, rather than physical function as such. Different aspects of a person’s mobility and ability to attend to one’s personal care were most often included regarding activity and participation. For body functions, items about sleep and pain were most often included. The Oswestry Disability Index and the Quebec Back Pain Disability Scale showed adequate psychometric properties in most evaluations.

Conclusions: The extent of psychometric evaluations differed substantially, as did the items included. Focus of measurement was predominantly on activities in daily life.

  • Implications for rehabilitation
  • Valid and reliable instruments that measure relevant aspects of low back disorders are needed to provide early diagnostics and effective treatment.
  • Most questionnaires need more psychometric evaluations to establish the quality.
  • The Oswestry Disability Index and the Quebec Back Pain Disability Scale showed adequate psychometric properties in most evaluations.
  • The results may be useful when making decisions about which measurement instruments to use when evaluating low back disorders.
Keywords
Questionnaire, measure, low back, ICF, psychometrics
National Category
Health Sciences
Identifiers
urn:nbn:se:hig:diva-25465 (URN)10.1080/09638288.2018.1495274 (DOI)
Available from: 2017-10-26 Created: 2017-10-26 Last updated: 2018-11-09Bibliographically approved
Wiitavaara, B. & Heiden, M. (2018). Content and psychometric evaluations of questionnaires for assessing physical function in people with neck disorders –  A systematic review of the literature. Disability and Rehabilitation, 40(19), 2227-2235
Open this publication in new window or tab >>Content and psychometric evaluations of questionnaires for assessing physical function in people with neck disorders –  A systematic review of the literature
2018 (English)In: Disability and Rehabilitation, ISSN 0963-8288, E-ISSN 1464-5165, Vol. 40, no 19, p. 2227-2235Article, review/survey (Refereed) Published
Abstract [en]

Purpose: The purpose was to investigate how physical function is assessed in people with musculoskeletal disorders (MSD) in the neck. Specifically, we aimed to determine: (1) Which questionnaires are used to assess physical function in people with MSD in the neck? (2) What do those questionnaires measure? (3) What are the measurement properties of the questionnaires?

Materials and methods: A systematic review was performed to identify questionnaires and psychometric evaluations. The content of the questionnaires was categorized according to the International Classification of Function, Disability and Health, and the psychometric properties were quality-rated using the COnsensus-based Standards for the selection of health Measurement INstruments checklist.

Results: Ten questionnaires and 32 articles evaluating measurement properties were analyzed. Most questionnaires covered only the components body functions and activity and participation, more often activity participation than body function. Internal consistency was adequate in most questionnaires, whereas responsiveness was generally low. Neck Disability Index was most evaluated, but the evaluations of all questionnaires tended to cover most properties in the checklist.

Conclusions: The questionnaires differed substantially in items and extent to which their psychometric properties had been evaluated. Focus of measurement was on activities in daily life rather than physical function as such.

  • Implications for Rehabilitation
  • To provide early diagnostics and effective treatment for patients with neck disorders, valid and reliable instruments that measure relevant aspects of the disorders are needed.

  • This paper presents an overview of content and quality of questionnaires used to assess physical function in neck disorders, which may facilitate informed decisions about which measurement instruments to use when evaluating the course of neck disorders.

  • Most of the questionnaires need more testing to judge the quality, however the NDI was the most frequently tested questionnaire.

  • The COnsensus-based Standards for the selection of health Measurement INstruments checklist is a useful tool in relation to psychometric testing of questionnaires, but clear definitions of interpretation of the quality criteria in each study would enhance comparability of results.

Keywords
Questionnaire, measure, neck, ICF, COSMIN
National Category
Health Sciences
Identifiers
urn:nbn:se:hig:diva-22617 (URN)10.1080/09638288.2017.1334096 (DOI)000440026500001 ()28573884 (PubMedID)2-s2.0-85050795158 (Scopus ID)
Available from: 2016-10-21 Created: 2016-10-21 Last updated: 2018-08-15Bibliographically approved
Rashid, M., Kristofferzon, M.-L., Heiden, M. & Nilsson, A. (2018). Factors related to work ability and well-being among women on sick leave due to long-term pain in the neck/shoulders and/or back: a cross-sectional study. BMC Public Health, 18(1), Article ID 672.
Open this publication in new window or tab >>Factors related to work ability and well-being among women on sick leave due to long-term pain in the neck/shoulders and/or back: a cross-sectional study
2018 (English)In: BMC Public Health, ISSN 1471-2458, E-ISSN 1471-2458, Vol. 18, no 1, article id 672Article in journal (Refereed) Published
Abstract [en]

BACKGROUND:

Musculoskeletal pain is one of the leading causes of sick leave, especially among women, in Western countries. The aim of the present study was to identify factors associated with work ability and well-being, respectively, among women on sick leave due to long-term pain in the neck/shoulders and/or back.

METHODS:

A cross-sectional study with a correlational design was conducted on women who were sick-listed due to long-term pain in the neck/shoulders and/or back. A total of 208 participants responded to a survey comprising eight instruments: Multidimensional Pain Inventory scale, General Self-Efficacy scale, Sense of Coherence scale, Coping Strategies Questionnaire, Demand-Control-Support Questionnaire, Hospital Anxiety and Depression Scale, Work Ability Index and Life Satisfaction questionnaire. Multiple linear regression analyses were performed to identify factors associated with work ability and well-being, respectively.

RESULTS:

Women who more strongly believed they would return to the same work had greater work ability (β = 0.39, p < 0.001), whereas women with higher pain intensity (β = - 0.30, p < 0.001) and higher job strain (β = - 0.12, p < 0.05) had lower work ability. Women with higher self-efficacy rated greater well-being (β = 0.14, p < 0.05). As the women's scores for depression increased, their well-being decreased by 48%, which was statistically significant (p < 0.001). The regression models for work ability and well-being were significant (p < 0.001), and their adjusted R- square values were 48% and 59%, respectively.

CONCLUSIONS:

The study suggests that the factors beliefs to be back at the same work, pain intensity and job strain are predictive of work ability. Moreover, the factors self-efficacy and depression seem to be predictive of well-being. The findings highlight factors that should be considered by health care professionals and policy-makers to guide attempts to reduce sick leave.

Keywords
Ability to work; Musculoskeletal pain; Prognostic factors; Quality of life; Sickness absence; Women
National Category
Occupational Health and Environmental Health
Identifiers
urn:nbn:se:hig:diva-25931 (URN)10.1186/s12889-018-5580-9 (DOI)000433587000004 ()29848306 (PubMedID)2-s2.0-85047837458 (Scopus ID)
Note

Funding agency:

University of Gävle grant no: 2015/424

Available from: 2018-01-04 Created: 2018-01-04 Last updated: 2018-09-06Bibliographically approved
Gupta, N., Heiden, M., Mathiassen, S. E. & Holtermann, A. (2018). Is self-reported time spent sedentary and in physical activity among blue-collar workers differentially biased by age, gender, body mass index and low-back pain?. Scandinavian Journal of Work, Environment and Health, 4(2), 163-170
Open this publication in new window or tab >>Is self-reported time spent sedentary and in physical activity among blue-collar workers differentially biased by age, gender, body mass index and low-back pain?
2018 (English)In: Scandinavian Journal of Work, Environment and Health, ISSN 0355-3140, E-ISSN 1795-990X, Vol. 4, no 2, p. 163-170Article in journal (Refereed) Published
Abstract [en]

Objectives We aimed at determining the extent to which age, gender, BMI and low back pain (LBP) influence bias in self-reported sedentary behavior and moderate-to-vigorous physical activity (MVPA) among blue-collar workers. 

Methods 147 workers wore an Actigraph accelerometer on the thigh for 2-4 consecutive working days. Proportional time spent sedentary and in MVPA was determined using the Acti4 software. The same variables were also self-reported in a questionnaire. The difference between self-reported and accelerometer-based sedentary time and MVPA was calculated and linearly regressed against age, gender, BMI, and self-reported LBP intensity as main effects, as well as interaction terms combining each of these factors with objectively measured exposure.   

Results Workers objectively spent 64% of their time sedentary and 9% in MVPA. On average, self-reports underestimated sedentary time by 1.5 time percentage points and overestimated MVPA by 5.5%. Workers with mild/no LBP appeared to have the same size of self-report bias in MVPA regardless of how much MVPA they actually had, while workers with high LBP overestimated MVPA to an increasing extent with increasing exposure (interaction: B 0.29, 95%CI 0.05 to 0.53). Age was positively associated with self-report bias in sedentary time (B=0.31, 95%CI=0.09 - 0.54, P=0.008) regardless of actual sedentary time.

Conclusions LBP and age, but not BMI and gender, introduced differential bias in self-reported information on sedentary behavior and MVPA among blue-collar workers. This result suggests that bias correction in future studies based on self-reports of sedentary time and MVPA should account for LBP and age.

Keywords
Measurement error, exposure modelling, questionnaire, musculoskeletal pain
National Category
Occupational Health and Environmental Health
Identifiers
urn:nbn:se:hig:diva-24600 (URN)10.5271/sjweh.3693 (DOI)000427107100006 ()29184965 (PubMedID)2-s2.0-85042866971 (Scopus ID)
Funder
Forte, Swedish Research Council for Health, Working Life and Welfare, 2009-1761
Note

Funding agency: Danish Work Environment Research Fund  Grant no: 20130069161/9

Available from: 2017-06-28 Created: 2017-06-28 Last updated: 2018-04-03Bibliographically approved
Jackson, J., Forsman, M., Heiden, M., Waleh Åström, A. & Mathiassen, S. E. (2018). Measuring posture in working life: Observation or inclinometry?. In: Lindberg, Per (Ed.), : . Paper presented at FALF 2018 konferens 'Arbetet - problem eller potential för en hållbar livsmiljö?', 10-12 juni 2018, Gävle (pp. 38-40). Gävle: Gävle University Press
Open this publication in new window or tab >>Measuring posture in working life: Observation or inclinometry?
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2018 (English)In: / [ed] Lindberg, Per, Gävle: Gävle University Press , 2018, p. 38-40Conference paper, Oral presentation with published abstract (Refereed)
Abstract [en]

Quantifying postures during work is a key aspect of understanding the physical loads experienced by the body at work. Two commonly used tools to assess posture are observation and inclinometry. Observation can be performed in many ways, from real-time observations made at the worksite assessing gross body postures, to estimates of individual joint angles made by observers assessing still images taken from video recorded at the work site. Inclinometry is a direct technical measurement tool which typically uses tri-axial accelerometers to determine angles of specific body segments with respect to the line of gravity. Regardless of which tool is used, it will introduce some variability between repeated measurements of a same posture – this is called method-logical variability. Over the past ten years we have worked extensively in our Cost-efficient measurement of physical exposures research program to quantify the magnitude of error resulting from different measurement strategies – both in terms of bias (that is, the difference between the truth and the measured values) and precision (that is, how different repeated estimates of a same posture are). Further, we have compared the monetary costs and relative performances (in terms of measurement quality) of different measurement strategies. From these studies we have developed a set of recommendations to guide effective posture assessment.

We assessed bias in both observation and inclinometry to determine how close posture estimates were to the true body segment angles. Under ideal observation conditions, observers were not biased in estimating upper arm elevation angles (1). Conversely, we found a systematic underestimation of upper arm elevation angles made using inclino-metry, particularly for angles at or above 60° (2). We developed a simple, on-body incli-nometry calibration procedure, and determined it was effective at reducing inclinometer bias (2).

We investigated how data sampling should be distributed within and across days, and how much data was required to obtain a specific level of precision. Regardless of the tool, we found that efficiency was improved by distributing shorter sampling periods using a fixed-interval strategy across an entire day or days rather than collecting one longer period (3,4). Precision of inclinometer data is high and thus a single measurement of an event is sufficient. In contrast, observation requires repeated estimates of an image, even under ideal conditions (1, 5). For observation of still images from videos, we determined that efficiency was improved by assessing images extracted at set intervals across the recorded data (i.e. a work sampling approach) rather than making estimates based on continuously viewed intervals of video data (5). Further, repeated observations by one or more observers of a smaller number of frames of data improved the precision of angle estimates compared with a single observer rating a larger number of frames (6). In the case that a worker is obstructed from the camera view, additional frame analysis may be required and the uncertainty of the angle estimate may increase (7).

We developed models to assess the net cost of each method, including equipment acquisition, data collection and data analysis. While the initial expense may seem higher for inclinometers, cost gains are made during collection and analysis stages compared to the work-intensive post-collection efforts required for observation. We found that inclinometry was more cost efficient than observation in certain settings (8), but that uncertainty exists even in cost assessment models and thus that cost-efficiency is situation-dependent (9).

There are strengths and weaknesses to both tools and one must evaluate the goals of each data collection and the relative merits of each tool when determining the appropriate assessment method. Observation may be preferable for studies seeking a general impression of a working day, identifying the tasks comprising a working day, assessing twisting during work, or assessing whether anatomical segments are loaded or supported during work. Inclinometers may be preferred for studies requiring full day or multi-day assessments, a high degree of accuracy and precision in angle estimates, information on segmental movement velocities, and/or studies where workers cannot be adequately filmed. Rapid advances in inclinometer technology and smart phone analogues will serve to further minimise set-up times and acquisition costs, making direct technical measurement increasingly feasible.

1. Jackson, J. A., Mathiassen, S. E. & Liv, P. Observer performance in estimating upper arm elevation angles under ideal viewing conditions when assisted by posture matching software. Appl. Ergon. 55, 208–215 (2016).

2. Jackson, J. A., Mathiassen, S. E., Wahlström, J., Liv, P. & Forsman, M. Is what you see what you get? Standard inclinometry of set upper arm elevation angles. Appl. Ergon. 47, 242–252 (2015).

3. Liv, P., Mathiassen, S. E. & Svendsen, S. W. Theoretical and empirical efficiency of sampling strategies for estimating upper arm elevation. Ann. Occup. Hyg. 55, 436–449 (2011).

4. Liv, P., Mathiassen, S. E. & Svendsen, S. W. Accuracy and precision of variance components in occupational posture recordings: A simulation study of different data collection strategies. BMC Med. Res. Methodol. 12, 58–68 (2012).

5. Rezagholi, M., Mathiassen, S. E. & Liv, P. Cost efficiency comparison of four video-based techniques for assessing upper arm postures. Ergonomics 55, 350–360 (2012).

6. Liv, P., Mathiassen, S. E. & Wahlström, J. Statistical power and measurement requirements in studies comparing observed postures between groups. (PhD Thesis, Umeå University, 2012).

7. Trask, C., Mathiassen, S. E., Rostami, M. & Heiden, M. Observer variability in posture assessment from video recordings: The effect of partly visible periods. Appl. Ergon. 60, 275–281 (2017).

8. Trask, C., Mathiassen, S. E., Jackson, J.A. & Wahlström, J. Data processing costs for three posture assessment methods. BMC Med. Res. Methodol. 13, 124–137 (2013).

9. Waleh Åström, A., Heiden, M., Mathiassen, S. E. & Strömberg, A. Uncertainty in monetary cost estimates for assessing working postures using inclinometry, observation or self-report. in review, (2018).

Place, publisher, year, edition, pages
Gävle: Gävle University Press, 2018
National Category
Occupational Health and Environmental Health
Identifiers
urn:nbn:se:hig:diva-27077 (URN)978-91-88145-28-4 (ISBN)
Conference
FALF 2018 konferens 'Arbetet - problem eller potential för en hållbar livsmiljö?', 10-12 juni 2018, Gävle
Available from: 2018-06-16 Created: 2018-06-16 Last updated: 2018-06-18Bibliographically approved
Heiden, M., Richardsson, L., Wiitavaara, B. & Boman, E. (2018). Telecommuting in academia – Associations with staff’s health and well-being. In: Bagnara S., Tartaglia R., Albolino S., Alexander T., Fujita Y. (Ed.), Proceedings of the 20th Congress of the International Ergonomics Association (IEA 2018): Volume IX: Aging, Gender and Work, Anthropometry, Ergonomics for Children and Educational Environments. Paper presented at 20th Congress of the International Ergonomics Association, 26-30 August 2018, Florence, Italy (pp. 308-312). Cham: Springer
Open this publication in new window or tab >>Telecommuting in academia – Associations with staff’s health and well-being
2018 (English)In: Proceedings of the 20th Congress of the International Ergonomics Association (IEA 2018): Volume IX: Aging, Gender and Work, Anthropometry, Ergonomics for Children and Educational Environments / [ed] Bagnara S., Tartaglia R., Albolino S., Alexander T., Fujita Y., Cham: Springer, 2018, p. 308-312Conference paper, Oral presentation with published abstract (Refereed)
Abstract [en]

The ability to telecommute has changed working life for staff at universities and colleges. Although the opportunity to work away from the office at any time gives workers more freedom to manage their work, it also imposes higher demands on workers to set limits to their work. The aim of this ongoing study is to determine if there is an optimal amount of telecommuting for male and female academics with respect to perceived health, work stress, recovery, work-life balance, and work motivation. A web-based survey is currently being conducted among lecturers and professors at Swedish universities and colleges. Results so far show that perceived fatigue and stress associated with indistinct organization and conflicts are higher among academics that telecommute to a larger extent. The results also show that female academics are more fatigued and stressed at work than male academics, but this does not seem to be related to the extent of telecommuting performed.

Place, publisher, year, edition, pages
Cham: Springer, 2018
Series
Advances in Intelligent Systems and Computing, ISSN 2194-5357, E-ISSN 2194-5365 ; 826
Keywords
Telework, Lecturer, Work stress
National Category
Occupational Health and Environmental Health
Identifiers
urn:nbn:se:hig:diva-27871 (URN)10.1007/978-3-319-96065-4 (DOI)978-3-319-96064-7 (ISBN)978-3-319-96065-4 (ISBN)
Conference
20th Congress of the International Ergonomics Association, 26-30 August 2018, Florence, Italy
Available from: 2018-09-06 Created: 2018-09-06 Last updated: 2018-09-14Bibliographically approved
Heiden, M., Zetterberg, C. & Mathiassen, S. E. (2018). Trunk and upper arm postures in paper mill work.
Open this publication in new window or tab >>Trunk and upper arm postures in paper mill work
2018 (English)In: Article in journal (Refereed) Submitted
Keywords
exposure, inclinometry, observation
National Category
Other Health Sciences
Identifiers
urn:nbn:se:hig:diva-26535 (URN)
Available from: 2018-05-03 Created: 2018-05-03 Last updated: 2018-05-28Bibliographically approved
Waleh Åström, A., Heiden, M., Mathiassen, S. E. & Strömberg, A. (2018). Uncertainty in monetary cost estimates for assessing working postures using inclinometry, observation or self-report. Applied Ergonomics, 71, 73-77
Open this publication in new window or tab >>Uncertainty in monetary cost estimates for assessing working postures using inclinometry, observation or self-report
2018 (English)In: Applied Ergonomics, ISSN 0003-6870, E-ISSN 1872-9126, Vol. 71, p. 73-77Article in journal (Refereed) Published
Abstract [en]

Objective: To assess uncertainty in cost estimates for collecting posture data by inclinometry, observations and self-report.

Method: In a study addressing physical workloads at a paper mill, costs were calculated for measuring postures of twenty-eight workers during three shifts. Uncertainty in costs was assessed for all three methods as the range between an assumed best case (lowest cost) and worst case (highest cost) using scenario analysis.

Results: The cost for observation was larger, but also more uncertain (€16506 and €89552 in the best and worst case, respectively) than that of inclinometry (€7613 - €45896). Self-report costs were both lower and less uncertain (€3743 - €23368).

Conclusions: The extent of uncertainty in cost estimates implies that observation could be less expensive than inclinometry, e.g., in a scenario where experienced observers could use existing software, while inclinometers would have to be purchased. We propose adding uncertainty assessments to cost estimates when selecting a method for measuring working postures, and offer guidance in how to proceed in a specific setting.

Keywords
Cost components, scenario analysis, exposure assessment
National Category
Occupational Health and Environmental Health
Identifiers
urn:nbn:se:hig:diva-25532 (URN)10.1016/j.apergo.2018.04.005 (DOI)000437366400009 ()29764616 (PubMedID)2-s2.0-85046100007 (Scopus ID)
Funder
Forte, Swedish Research Council for Health, Working Life and Welfare, 2010-0748Forte, Swedish Research Council for Health, Working Life and Welfare, 2009-1761
Available from: 2017-11-15 Created: 2017-11-15 Last updated: 2018-09-14Bibliographically approved
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