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Coenen, P., Mathiassen, S. E., van der Beek, A. & Hallman, D. (2020). Correction of bias in self-reported sitting time among office workers – a study based on compositional data analysis. Scandinavian Journal of Work, Environment and Health, 46(1), 32-42
Öppna denna publikation i ny flik eller fönster >>Correction of bias in self-reported sitting time among office workers – a study based on compositional data analysis
2020 (Engelska)Ingår i: Scandinavian Journal of Work, Environment and Health, ISSN 0355-3140, E-ISSN 1795-990X, Vol. 46, nr 1, s. 32-42Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Objective: Emerging evidence suggests that excessive sitting has negative health effects. However, this evidence largely relies on research using self-reported sitting time, which is known to be biased. To correct this bias, we aimed at developing a calibration model estimating "true" sitting from self-reported sitting.

Methods: Occupational sitting time was estimated by self-reports (the International Physical Activity Questionnaire) and objective measurements (thigh-worn accelerometer) among 99 Swedish office workers at a governmental agency, at baseline and 3 and 12 months afterwards. Following compositional data analysis procedures, both sitting estimates were transformed into isometric log-ratios (ILR). This effectively addresses that times spent in various activities are inherently dependent and can be presented as values of only 0−100%. Linear regression was used to develop a simple calibration model estimating objectively measured "true" sitting ILR (dependent variable) from self-reported sitting ILR (independent variable). Additional self-reported variables were then added to construct a full calibration model. Performance of the models was assessed by root-mean-square (RMS) differences between estimated and objectively measured values. Models developed on baseline data were validated using the follow-up datasets.

Results: Uncalibrated self-reported sitting ILR showed an RMS error of 0.767. Simple and full calibration models (incorporating body mass index, office type, and gender) reduced this error to 0.422 (55%) and 0.398 (52%), respectively. In the validations, model performance decreased to 57%/62% (simple models) and 57%/62% (full models) for the two follow-up data sets, respectively.

Conclusions: Calibration adjusting for errors in self-reported sitting led to substantially more correct estimates of "true" sitting than uncalibrated self-reports. Validation indicated that model performance would change somewhat in new datasets and that full models perform no better than simple models, but calibration remained effective.

Nyckelord
calibration, calibration model, compositional data analysis, occupational health, sedentary behavior
Nationell ämneskategori
Arbetsmedicin och miljömedicin
Forskningsämne
Hälsofrämjande arbete
Identifikatorer
urn:nbn:se:hig:diva-28757 (URN)10.5271/sjweh.3827 (DOI)
Forskningsfinansiär
Forte, Forskningsrådet för hälsa, arbetsliv och välfärd, 2009-1761
Tillgänglig från: 2018-12-04 Skapad: 2018-12-04 Senast uppdaterad: 2020-01-24Bibliografiskt granskad
Gupta, N., Hallman, D., Dumuid, D., Vij, A., Lund Rasmussen, C., Birk Jørgensen, M. & Holtermann, A. (2020). Movement behavior profiles and obesity: a latent profile analysis of 24-h time-use composition among Danish workers. International Journal of Obesity, 44(2), 409-417
Öppna denna publikation i ny flik eller fönster >>Movement behavior profiles and obesity: a latent profile analysis of 24-h time-use composition among Danish workers
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2020 (Engelska)Ingår i: International Journal of Obesity, ISSN 0307-0565, E-ISSN 1476-5497, Vol. 44, nr 2, s. 409-417Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Background/objectives

An element of obesity prevention is increasing total physical activity energy expenditure. However, this approach does not incorporate the balance of various movement behaviors—physical activity, sedentary behaviors and sleep - across domains of the day. We aimed to identify time-use profiles over work and leisure, termed ‘movement behavior profiles’ and to investigate their association with obesity.

Subjects/methods

Eight-hundred-and-seven workers completed (a) thigh accelerometry and diaries to determine their 24-h composition of behaviors (sedentary and standing, light physical activity and moderate-to-vigorous physical activity at work and leisure, and time in bed) and (b) obesity measurements. Movement behavior profiles were determined using latent profile analyses of isometric log-ratios of the 24-h composition, and labeled according to animal movement behavior traits. Linear models were applied to determine the association between profiles and obesity.

Results

Four profiles were identified, labeled as “Chimpanzees” (n = 226), “Lions” (n = 179), “Ants” (n = 244), and “Koalas” (n = 158). “Chimpanzees” work time was evenly distributed between behaviors while their leisure time was predominantly active. Compared to Chimpanzees, “Lions” were more active at work and sedentary during leisure and spent more time in bed; “Ants” were more active at work and during leisure; “Koalas” were more sedentary at work and leisure and spent similar time in bed. With “Chimpanzees” as reference, “Lions” had least favorable obesity indicators: +2.0 (95% confidence interval [CI] 0.6, 3.4) %body fat, +4.3 cm (1.4, 7.3) waist circumference and +1.0 (2.0, 0.0) Body Mass Index (BMI), followed by “Koalas” +2.0 (0.4, 3.7) %body fat, +3.1 cm (0.1, 6.0) waist circumference, and +0.8 (−0.30, 1.94) BMI. No significant differences were found between “Chimpanzees” and “Ants”.

Conclusions

Movement behavior profiles across work and leisure time-use compositions are associated with obesity. Achieving adequate balance between work and leisure movement behaviors should be further investigated as a potential obesity prevention strategy.

Ort, förlag, år, upplaga, sidor
Nature Publishing Group, 2020
Nationell ämneskategori
Arbetsmedicin och miljömedicin
Forskningsämne
Hälsofrämjande arbete
Identifikatorer
urn:nbn:se:hig:diva-30568 (URN)10.1038/s41366-019-0419-8 (DOI)000510753800015 ()31341260 (PubMedID)2-s2.0-85069632196 (Scopus ID)
Anmärkning

Funding agency:

- Danish work environment research fund (journal number 01–2015–03) - Danish government (satspulje)

Tillgänglig från: 2019-08-23 Skapad: 2019-08-23 Senast uppdaterad: 2020-02-17Bibliografiskt granskad
Clays, E., Hallman, D., Oakman, J. & Holtermann, A. (2020). Objectively measured occupational physical activity in blue-collar workers: What is the role of job type, gender and psychosocial resources?. Applied Ergonomics, 82, Article ID 102948.
Öppna denna publikation i ny flik eller fönster >>Objectively measured occupational physical activity in blue-collar workers: What is the role of job type, gender and psychosocial resources?
2020 (Engelska)Ingår i: Applied Ergonomics, ISSN 0003-6870, E-ISSN 1872-9126, Vol. 82, artikel-id 102948Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

The aim was to describe occupational physical activity (OPA) and examine the role of psychosocial job resources among blue-collar workers. In a sample of 198 workers (57% male; mean age 44.9 (SD 9.9) year) from 7 companies in Denmark, two accelerometers (Actigraph) were placed on the thigh and trunk during 1-5 consecutive days, to determine working time spent standing, walking, on feet and in activity of moderate to vigorous intensity level (MVPA). The level of influence and social support at work were assessed by questionnaire. The exposure to OPA significantly varied by particular job type, especially in male predominant occupations. Overall, psychosocial job resources did not affect the exposure to OPA. These findings suggest that workplace interventions aiming to prevent adverse outcomes of OPA among blue-collars workers ought to focus on task redesign and target work organizational factors related to specific job type.

Nyckelord
Blue-collar, Objective measurement, Occupational physical activity, Psychosocial, Work organization
Nationell ämneskategori
Arbetsmedicin och miljömedicin
Forskningsämne
Hälsofrämjande arbete
Identifikatorer
urn:nbn:se:hig:diva-30726 (URN)10.1016/j.apergo.2019.102948 (DOI)000501647900022 ()31493536 (PubMedID)2-s2.0-85071640451 (Scopus ID)
Tillgänglig från: 2019-10-03 Skapad: 2019-10-03 Senast uppdaterad: 2020-01-24Bibliografiskt granskad
Picchiottino, M., Honore´, M., Leboeuf-Yde, C., Gagey, O., Cottin, F. & Hallman, D. (2020). The effect of a single spinal manipulation on cardiovascular autonomic activity and the relationship to pressure pain threshold: a randomized, cross-over, sham-controlled trial. Chiropractic and Manual Therapies, 28, Article ID 7.
Öppna denna publikation i ny flik eller fönster >>The effect of a single spinal manipulation on cardiovascular autonomic activity and the relationship to pressure pain threshold: a randomized, cross-over, sham-controlled trial
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2020 (Engelska)Ingår i: Chiropractic and Manual Therapies, ISSN 2045-709X, E-ISSN 2045-709X, Vol. 28, artikel-id 7Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Background

The autonomic nervous system interacts with the pain system. Knowledge on the effects of high velocity low amplitude spinal manipulations (SM) on autonomic activity and experimentally induced pain is limited. In particular, the effects of SM on autonomic activity and pain beyond the immediate post intervention period as well as the relationship between these two outcomes are understudied. Thus, new research is needed to provide further insight on this issue.

Objectives

The aim was to assess the effect of a single SM (i.e. SM vs. sham) on cardiovascular autonomic activity. Also, we assessed the relationship between cardiovascular autonomic activity and level of pain threshold after the interventions.

Method

We conducted a randomized, cross-over, sham-controlled trial on healthy first-year chiropractic students comprising two experimental sessions separated by 48 h. During each session, subjects received, in a random order, either a thoracic SM or a sham manipulation. Cardiovascular autonomic activity was assessed using heart rate and systolic blood pressure variabilities. Pain sensitivity was assessed using pressure pain threshold. Measurements were performed at baseline and repeated three times (every 12 min) during the post intervention period. Participants and outcome assessors were blinded. The effect of the SM was tested with linear mixed models. The relationship between autonomic outcomes and pressure pain threshold was tested with bivariate correlations.

Results

Fifty-one participants were included, forty-one were finally analyzed. We found no statistically significant difference between SM and sham in cardiovascular autonomic activity post intervention. Similarly, we found no post-intervention relationship between cardiovascular autonomic activity and pressure pain threshold.

Conclusion

Our results suggest that a single SM of the thoracic spine has no specific effect on cardiovascular autonomic activity. Also, we found no relationship between cardiovascular autonomic activity and pressure pain threshold after the SM. Further experimental research should consider the use of several markers of autonomic activity and a more comprehensive pain assessment.

Trial registration

N° NCT03273868. Registered September 6, 2017

Ort, förlag, år, upplaga, sidor
BioMed Central, 2020
Nationell ämneskategori
Arbetsmedicin och miljömedicin
Forskningsämne
Hälsofrämjande arbete
Identifikatorer
urn:nbn:se:hig:diva-31506 (URN)10.1186/s12998-019-0293-4 (DOI)31988711 (PubMedID)2-s2.0-85078345247 (Scopus ID)
Tillgänglig från: 2020-01-21 Skapad: 2020-01-21 Senast uppdaterad: 2020-02-06Bibliografiskt granskad
Stevens, M., Crowley, P., Lund Rasmussen, C., Hallman, D., Mortensen, O., Nygård, C.-H. & Holtermann, A. (2019). Accelerometer-measured physical activity at work and need for recovery: A compositional analysis of cross-sectional data. Annals of Work Exposures and Health
Öppna denna publikation i ny flik eller fönster >>Accelerometer-measured physical activity at work and need for recovery: A compositional analysis of cross-sectional data
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2019 (Engelska)Ingår i: Annals of Work Exposures and Health, ISSN 2398-7308Artikel i tidskrift (Refereegranskat) Epub ahead of print
Abstract [en]

Objectives

Previous research has shown strong associations between occupational physical activity (OPA) and need for recovery (NFR). However this research has only utilized self-reported measures of OPA which may be biased. Thus, there is a need for investigating if the previously documented association between self-reported OPA and NFR can be found when using technical measures of OPA. There is also the need to investigate whether older workers are particularly susceptible to increased NFR, since age-related declines in physical capacity mean that it is likely these workers will have a higher NFR for a given physical activity. The aim of this study was to investigate the association between technically measured OPA and NFR, and whether this relationship is modified by age.

Methods

This study utilized data from the Danish Physical Activity Cohort with Objective Measurements cohort—comprising Danish workers (n = 840) from the cleaning, manufacturing, and transportation sectors. OPA was measured by accelerometers attached to the thigh and upper back for at least one work day and classified into four physical behaviour categories (sedentary, standing, light, or moderate/vigorous). NFR was measured using a shortened version of the Danish NFR scale. Analysis was conducted using linear regression and isotemporal substitution analyses for compositional data.

Results

The overall association between OPA and NFR was statistically significant in the unadjusted model (P < 0.001), but not when adjusted for age, sex, occupation, and shift work (P = 0.166). Isotemporal substitution showed small but significant reductions in NFR when increasing sedentary time relative to other behaviours (adjusted: ΔNFR = −0.010 [−0.019; −0.001]). There were no significant interactions between age and OPA (P = 0.409).

Conclusions

This study found significant associations between OPA and NFR, but the effect sizes were small. Reallocating 30 min to sedentary behaviours from other behaviours was associated with a reduced NFR, but the effect size may not be practically relevant. Moreover, no clear modifying effects of age were identified.

Ort, förlag, år, upplaga, sidor
Oxford University Press, 2019
Nyckelord
blue-collar workers, compositional data analysis, physical activity, physical behaviour, need for recovery, triaxial accelerometers
Nationell ämneskategori
Arbetsmedicin och miljömedicin
Forskningsämne
Hälsofrämjande arbete
Identifikatorer
urn:nbn:se:hig:diva-31082 (URN)10.1093/annweh/wxz095 (DOI)31879769 (PubMedID)
Tillgänglig från: 2019-11-26 Skapad: 2019-11-26 Senast uppdaterad: 2020-01-24Bibliografiskt granskad
Mixter, S., Mathiassen, S. E., Hallman, D. & Bjärntoft, S. (2019). Alternations between physical and cognitive tasks – does temporal pattern and cognitive task difficulty influence fatigue development?. In: : . Paper presented at 10th International Scientific Conference on the Prevention of Work-related Musculoskeletal Disorders, 2-5 September 2019, Bologna, Italy.
Öppna denna publikation i ny flik eller fönster >>Alternations between physical and cognitive tasks – does temporal pattern and cognitive task difficulty influence fatigue development?
2019 (Engelska)Konferensbidrag, Muntlig presentation med publicerat abstract (Refereegranskat)
Abstract [en]

Background

Some evidence suggests that alternations between physical and cognitive work tasks may be a viable option for job rotation, since production can be maintained without excessive fatigue. Effects on fatigue and pain of the temporal distribution of physical and cognitive tasks are, however, uncertain. The aim of this study was to examine development of fatigue and pain during physical and cognitive work tasks of different difficulties, alternating in different temporal patterns.

Methods

Fifteen women performed alternating bouts of a physical task (phys) and a cognitive task (CT) for a total of 100 minutes. Four experimental conditions were tested in a repeated-measures design. Conditions 1 and 2 consisted of five long-cycle sequences (phys+CT, 14+6 minutes), and in conditions 3 and 4, 10 short-cycle sequences (7+3 minutes) were performed. Each temporal pattern was completed with an easy or a difficult CT. Muscle fatigue was assessed using surface electromyography (EMG) from the right trapezius, and perceived fatigue and pain in the right shoulder was assessed using CR-10 ratings. Effects of time and experimental condition on these outcomes were tested using ANOVA.

Results

Perceived fatigue and pain in right shoulder after pipetting work bouts increased in all four conditions (long-cycle, fatigue F=5.68, p<0.001, pain F=4.12, p=0.01; short-cycle, fatigue F=10.59, p<0.001, pain F=5.45, p<0.001). Trapezius EMG did not change significantly across work bouts (long-cycle, F=2.14, p=0.09; short-cycle, F=1.03, p=0.42). Irrespective of the temporal alternation pattern, neither EMG nor fatigue and pain were influenced by CT difficulty (CT main effect and CT×time interaction: EMG, all F≤2.5, p≥0.1; fatigue and pain, all F≤2.0, p≥0.7).

Conclusions

The temporal pattern of alternations between a repetitive physical task and a CT did not influence fatigue development, and the difficulty level of the CT did not significantly influence fatigue and pain, irrespective of the temporal alternation pattern.

Nationell ämneskategori
Arbetsmedicin och miljömedicin
Forskningsämne
Hälsofrämjande arbete
Identifikatorer
urn:nbn:se:hig:diva-30731 (URN)
Konferens
10th International Scientific Conference on the Prevention of Work-related Musculoskeletal Disorders, 2-5 September 2019, Bologna, Italy
Forskningsfinansiär
AFA Försäkring, 120223
Tillgänglig från: 2019-10-04 Skapad: 2019-10-04 Senast uppdaterad: 2020-01-24Bibliografiskt granskad
Mixter, S., Mathiassen, S. E. & Hallman, D. (2019). Alternations between physical and cognitive tasks in repetitive work – Effect of cognitive task difficulty on fatigue development in women. Ergonomics, 62(8), 1008-1022
Öppna denna publikation i ny flik eller fönster >>Alternations between physical and cognitive tasks in repetitive work – Effect of cognitive task difficulty on fatigue development in women
2019 (Engelska)Ingår i: Ergonomics, ISSN 0014-0139, E-ISSN 1366-5847, Vol. 62, nr 8, s. 1008-1022Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

In a context of job rotation, this study determined the extent to which the difficulty of a cognitive task (CT) interspersed between bouts of repetitive, low-intensity work (pipetting) influences recovery from fatigue. Fifteen participants performed three experimental sessions, each comprising 10 repeats of a 7 min + 3 min combination of pipetting and CT. The CT was easy, moderate or hard. Surface electromyography (EMG amplitude of the forearm extensor and trapezius muscles) and self-reports was used to assess fatigability. Perceived fatigue and trapezius EMG amplitude increased during sessions. CT difficulty influenced fatigue development only little, besides forearm extensor EMG increasing more in CT3 than in CT1 and CT2. During CT bouts, fatigability recovered, and to a similar extent irrespective of CT. Thus, CT difficulty influenced recovery of perceived as well as performance fatigability to a minor extent, and may not be a critical issue in job rotation comprising alternating physical and cognitive tasks.

Nyckelord
Repetitive work, fatigue, recovery, physical load, mental load, variation
Nationell ämneskategori
Arbetsmedicin och miljömedicin
Forskningsämne
Hälsofrämjande arbete
Identifikatorer
urn:nbn:se:hig:diva-26536 (URN)10.1080/00140139.2019.1614229 (DOI)000469647700001 ()31056015 (PubMedID)2-s2.0-85065848351 (Scopus ID)
Forskningsfinansiär
AFA Försäkring, 120223
Tillgänglig från: 2018-05-03 Skapad: 2018-05-03 Senast uppdaterad: 2020-01-24Bibliografiskt granskad
Hallman, D., Holtermann, A., Dencker-Larsen, S., Birk Jorgensen, M. & Nørregaard Rasmussen, C. (2019). Are trajectories of neck-shoulder pain associated with sick leave and work ability in workers? A 1-year prospective study. BMJ Open, 9(e022006)
Öppna denna publikation i ny flik eller fönster >>Are trajectories of neck-shoulder pain associated with sick leave and work ability in workers? A 1-year prospective study
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2019 (Engelska)Ingår i: BMJ Open, ISSN 2044-6055, E-ISSN 2044-6055, Vol. 9, nr e022006Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

ObjectivesThe study aimed to determine the extent to which latent trajectories of neck–shoulder pain (NSP) are associated with self-reported sick leave and work ability based on frequent repeated measures over 1 year in an occupational population.

MethodsThis longitudinal study included 748 Danish workers (blue-collar, n=620; white collar, n=128). A questionnaire was administered to collect data on personal and occupational factors at baseline. Text messages were used for repeated measurements of NSP intensity (scale 0–10) over 1 year (14 waves in total). Simultaneously, selfreported sick leave (days/month) due to pain was assessed at 4-week intervals, while work ability (scale 0–10) was assessed using a single item (work ability index) at 12-week intervals over the year. Trajectories of NSP, distinguished by latent class growth analysis, were usedas predictors of sick leave and work ability in generalised estimation equations with multiple adjustments.

ResultsSick leave increased and work ability decreased across all NSP trajectory classes (low, moderate, strong fluctuating and severe persistent pain intensity). In the adjusted model, the estimated number of days on sickleave was 1.5 days/month for severe persistent NSP compared with 0.1 days/month for low NSP (relativ risk=13.8, 95% CI 6.7 to 28.5). Similarly, work ability decreased markedly for severe persistent NSP (OR=12.9,95% CI 8.5 to 19.7; median 7.1) compared with low NSP (median 9.5).

ConclusionSevere persistent NSP was associatedwith sick leave and poor work ability over 1 year amongworkers. Preventive strategies aiming at reducing severepersistent NSP among working populations are needed.

Nyckelord
LCGA; chronic pain; neck pain; occupational; pain trajectories
Nationell ämneskategori
Arbetsmedicin och miljömedicin
Forskningsämne
Hälsofrämjande arbete
Identifikatorer
urn:nbn:se:hig:diva-25568 (URN)10.1136/bmjopen-2018-022006 (DOI)000471144900020 ()30898794 (PubMedID)2-s2.0-85063278240 (Scopus ID)
Projekt
PAINclass
Forskningsfinansiär
Forte, Forskningsrådet för hälsa, arbetsliv och välfärd
Anmärkning

Funding agency:

- Danish Government (Satspulje) 

Tillgänglig från: 2017-11-22 Skapad: 2017-11-22 Senast uppdaterad: 2020-01-24Bibliografiskt granskad
Januario, L., Karstad, K., Rugulies, R., Bergström, G., Holtermann, A. & Hallman, D. (2019). Association between psychosocial working conditions and perceived physical exertion among eldercare workers: a cross-sectional multilevel analysis of nursing homes, wards and workers. International Journal of Environmental Research and Public Health, 16(19), Article ID 3610.
Öppna denna publikation i ny flik eller fönster >>Association between psychosocial working conditions and perceived physical exertion among eldercare workers: a cross-sectional multilevel analysis of nursing homes, wards and workers
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2019 (Engelska)Ingår i: International Journal of Environmental Research and Public Health, ISSN 1661-7827, E-ISSN 1660-4601, Vol. 16, nr 19, artikel-id 3610Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

This cross-sectional multilevel study aims at investigating the associations between psychosocial working conditions of different workplace levels and perceived physical exertion among eldercare workers. Data were obtained from the ‘Danish Observational Study of Eldercare work and musculoskeletal disorderS’ (DOSES) study, including 536 eldercare workers, nested in 126 wards and 20 nursing homes. Psychosocial working conditions were measured by the Copenhagen Psychosocial Questionnaire (COPSOQ). The physical workload was measured with a self-administered scale (0–10) rating perceived physical exertion. Multilevel linear mixed models were used to determine associations of psychosocial conditions between nursing homes, wards, and workers with physical exertion. Most of the variance in the perceived physical exertion was explained by differences between workers (83%), but some variance was explained by wards (11%) and nursing homes (6%). Workers employed in nursing homes with low influence (p = 0.01) and poor leadership (p = 0.02), and in wards with high quantitative demands (p = 0.03), high work pace (p < 0.001), and low justice (p = 0.01) were at increased risk of reporting higher physical exertion. The strongest associations were found for low influence, low quality of leadership, and high work pace at nursing homes and ward levels. In conclusion, improving specific psychosocial working conditions at nursing home and ward levels may be of particular importance to reduce excessive physical workload in eldercare workers

Ort, förlag, år, upplaga, sidor
MDPI, 2019
Nyckelord
healthcare; multilevel analysis; nursing home; physical exertion; psychosocial factors; workload
Nationell ämneskategori
Arbetsmedicin och miljömedicin
Forskningsämne
Hälsofrämjande arbete
Identifikatorer
urn:nbn:se:hig:diva-30694 (URN)10.3390/ijerph16193610 (DOI)000494748600106 ()31561538 (PubMedID)2-s2.0-85072716023 (Scopus ID)
Projekt
AFA - DOSHIG
Forskningsfinansiär
AFA Försäkring, 180076
Tillgänglig från: 2019-09-26 Skapad: 2019-09-26 Senast uppdaterad: 2020-01-24Bibliografiskt granskad
Hallman, D., Mathiassen, S. E., van der Beek, A., Jackson, J. & Coenen, P. (2019). Calibration of self-reported time spent sitting, standing and walking among office workers: a compositional data analysis. International Journal of Environmental Research and Public Health, 16(17), Article ID 3111.
Öppna denna publikation i ny flik eller fönster >>Calibration of self-reported time spent sitting, standing and walking among office workers: a compositional data analysis
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2019 (Engelska)Ingår i: International Journal of Environmental Research and Public Health, ISSN 1661-7827, E-ISSN 1660-4601, Vol. 16, nr 17, artikel-id 3111Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

We developed and evaluated calibration models predicting objectively measured sitting, standing and walking time from self-reported data using a compositional data analysis (CoDA) approach. A total of 98 office workers (48 women) at the Swedish Transport Administration participated. At baseline and three-months follow-up, time spent sitting, standing and walking at work was assessed for five working days using a thigh-worn accelerometer (Actigraph), as well as by self-report (IPAQ). Individual compositions of time spent in the three behaviors were expressed by isometric log-ratios (ILR). Calibration models predicting objectively measured ILRs from self-reported ILRs were constructed using baseline data, and then validated using follow-up data. Un-calibrated self-reports were inaccurate; root-mean-square (RMS) errors of ILRs for sitting, standing and walking were 1.21, 1.24 and 1.03, respectively. Calibration reduced these errors to 36% (sitting), 40% (standing), and 24% (walking) of those prior to calibration. Calibration models remained effective for follow-up data, reducing RMS errors to 33% (sitting), 51% (standing), and 31% (walking). Thus, compositional calibration models were effective in reducing errors in self-reported physical behaviors during office work. Calibration of self-reports may present a cost-e_ective method for obtaining physical behavior data with satisfying accuracy in large-scale cohort and intervention studies.

Nyckelord
physical activity; sedentary behavior; oce work; accuracy; calibration; compositional data analysis
Nationell ämneskategori
Arbetsmedicin och miljömedicin
Forskningsämne
Hälsofrämjande arbete
Identifikatorer
urn:nbn:se:hig:diva-30597 (URN)10.3390/ijerph16173111 (DOI)000487037500106 ()31461868 (PubMedID)2-s2.0-85071631368 (Scopus ID)
Forskningsfinansiär
Forte, Forskningsrådet för hälsa, arbetsliv och välfärd, 2009-01761
Tillgänglig från: 2019-08-28 Skapad: 2019-08-28 Senast uppdaterad: 2020-01-24Bibliografiskt granskad
Projekt
Effekter av aktivitetsbaserade kontor på stillasittande, koncentration och hälsa i jämförelse med traditionella kontor [TRV 2015/43010]; Högskolan i Gävle; Publikationer
Haapakangas, A., Hallman, D., Mathiassen, S. E. & Jahncke, H. (2019). The effects of moving into an activity-based office on communication, social relations and work demands – A controlled intervention with repeated follow-up. Journal of Environmental Psychology, 66, Article ID 101341. Haapakangas, A., Hallman, D., Mathiassen, S. E. & Jahncke, H. (2018). Self-rated productivity and employee well-being in activity-based offices: the role of environmental perceptions and workspace use. Building and Environment, 145, 115-124Jahncke, H., Persson, L. & Hallman, D. (2017). Aktivitetsbaserade arbetsplatser: Koncentration, stillasittande och hälsa i jämförelse med traditionella kontor: Kartläggning år 2015-2017. Högskolan i GävleJahncke, H., Edvinsson, J., Mathiassen, S. E. & Hallman, D. (2016). Delrapport kontor A: Effekter av aktivitetsbaserade kontor på stillasittande, koncentration och hälsa i jämförelse med traditionella kontor. Gävle: Högskolan i GävleJahncke, H., Edvinsson, J., Mathiassen, S. E. & Hallman, D. (2016). Delrapport kontor B: Effekter av aktivitetsbaserade kontor på stillasittande, koncentration och hälsa i jämförelse med traditionella kontor. Gävle: Högskolan i GävleJahncke, H., Edvinsson, J., Mathiassen, S. E. & Hallman, D. (2016). Delrapport kontor C: Effekter av aktivitetsbaserade kontor på stillasittande, koncentration och hälsa i jämförelse med traditionella kontor. Gävle: Högskolan i GävleJahncke, H., Edvinsson, J., Mathiassen, S. E. & Hallman, D. (2016). Delrapport kontor D: Effekter av aktivitetsbaserade kontor på stillasittande, koncentration och hälsa i jämförelse med traditionella kontor. Gävle: Högskolan i GävleJahncke, H., Edvinsson, J., Mathiassen, S. E. & Hallman, D. (2016). Delrapport kontor E: Effekter av aktivitetsbaserade kontor på stillasittande, koncentration och hälsa i jämförelse med traditionella kontor. Gävle: Högskolan i Gävle
Organisationer
Identifikatorer
ORCID-id: ORCID iD iconorcid.org/0000-0002-2741-1868

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