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Papers by Svend Mathiassen

Research paper thumbnail of A practical guidance for assessments of sedentary behavior at work: A PEROSH initiative

Applied ergonomics, 2017

Sedentary behavior is defined as sitting or lying with low energy expenditure. Humans in industri... more Sedentary behavior is defined as sitting or lying with low energy expenditure. Humans in industrialized societies spend an increasing amount of time in sedentary behaviors every day. This has been associated with detrimental health outcomes. Despite a growing interest in the health effects of sedentary behavior at work, associations remain unclear, plausibly due to poor and diverse methods for assessing sedentary behavior. Thus, good practice guidance for researchers and practitioners on how to assess occupational sedentary behavior are needed. The aim of this paper is to provide a practical guidance for practitioners and researchers on how to assess occupational sedentary behavior. Ambulatory systems for use in field applications (wearables) are a promising approach for sedentary behavior assessment. Many different small-size consumer wearables, with long battery life and high data storage capacity are commercially available today. However, no stand-alone commercial system is able ...

Research paper thumbnail of Samband mellan ögon och nacke/skulder besvär bland professionella datoranvändare

Research paper thumbnail of Effects of Two Randomized and Controlled Multi-Component Interventions Focusing On 24-Hour Movement Behavior among Office Workers: A Compositional Data Analysis

International Journal of Environmental Research and Public Health, Apr 15, 2021

Research paper thumbnail of Alternations between physical and cognitive tasks in repetitive work – effect of cognitive task difficulty on fatigue development in women

Research paper thumbnail of ITKids Part I: Children's occupations and use of information and communication technologies

Work-a Journal of Prevention Assessment & Rehabilitation, 2011

Research paper thumbnail of Diversity of tasks and information technologies used by office workers at and away from work

Research paper thumbnail of Posture variation among office workers when using different information and communication technologies at work and away from work

Research paper thumbnail of Temporal patterns of sitting at work are associated with neck–shoulder pain in blue-collar workers: a cross-sectional analysis of accelerometer data in the DPHACTO study

International Archives of Occupational and Environmental Health, Mar 2, 2016

Research paper thumbnail of Sitting patterns after relocation to activity-based offices: A controlled study of a natural intervention

Preventive Medicine, Jun 1, 2018

Research paper thumbnail of Group-based exposure measurement strategies and their effects on trunk rotation and low-back pain exposure-outcome associations

Research paper thumbnail of Measurement strategy and statistical power in studies assessing gait stability and variability in older adults

Aging Clinical and Experimental Research, Jun 7, 2015

Research paper thumbnail of Occupational and Individual Determinants of Work-life Balance among Office Workers with Flexible Work Arrangements

International Journal of Environmental Research and Public Health, Feb 22, 2020

Research paper thumbnail of A comparison of standard and compositional data analysis in studies addressing group differences in sedentary behavior and physical activity

International Journal of Behavioral Nutrition and Physical Activity, Jun 15, 2018

Research paper thumbnail of What Determines Step-Rate at Work? An Investigation of Factors at the Shift, Worker, Ward, and Nursing Home Levels in Eldercare

Annals of Work Exposures and Health, Jun 17, 2021

Research paper thumbnail of Alternations between physical and cognitive tasks – does temporal pattern and cognitive task difficulty influence fatigue development?

Research paper thumbnail of Symposium: Arbete, individ och nacksmärta : Forskning vid Forte-centret “Kroppen i arbete – från problem till potential”

Besvar ifran kroppens muskler och leder sasom nack- och ryggbesvar ar fortfarande ett stort probl... more Besvar ifran kroppens muskler och leder sasom nack- och ryggbesvar ar fortfarande ett stort problem inom arbetslivet. Muskuloskeletal diagnos ar den vanligaste orsaken till lang sjukfranvaro inom p ...

Research paper thumbnail of Alternations between physical and mental tasks – a viable option for job rotation?

Research paper thumbnail of The effect of group-based exposure measurement strategies on the statistical significance of an association between lifting and low-back pain

The effect of group-based exposure measurement strategies on the statistical significance of an a... more The effect of group-based exposure measurement strategies on the statistical significance of an association between lifting and low-back pain

Research paper thumbnail of How does children’s postural variation when using ICT differ from that of adults

Ciccarelli, Marina, (author) Curtin University of Technology, Perth Straker, Leon, (author) Curti... more Ciccarelli, Marina, (author) Curtin University of Technology, Perth Straker, Leon, (author) Curtin University of Technology, Perth Mathiassen, Svend Erik, (author) Högskolan i Gävle, Centrum för belastningsskadeforskning show more... Pollock, Clare, (author) Curtin University of ...

Research paper thumbnail of How much variation does task rotation in the computerised office really provide

Musculoskeletal disorders (MSDs) are associated with information and communication technology (IC... more Musculoskeletal disorders (MSDs) are associated with information and communication technology (ICT) use among office workers. Current ergonomics research supports variation of muscle activity to mitigate the risk of MSDs. Task rotation is often used to increase variation, but to be effective, consecutive tasks should differ in exposures. Quantification of exposure variability among workers in computerised offices has not been widely researched. This study aimed to determine if there was a difference in variability of upper body muscle activity among office workers when performing tasks using Old ICT(paper-based), New ICT(electronics-based), Combined ICT(paper and electronics-based) and Non ICT tasks. Twenty-four office workers were observed in their natural environments for 10-12 h, while muscle activity of bilateral upper trapezius and the dominant wrist extensors was measured with electromyography (EMG). Tasks and ICT used were documented by an observer and matched to synchronous EMG data. There was no difference in mean amplitudes and variability of trapezius muscle during Old and New ICT tasks. Variation in the right wrist extensors during Old ICT tasks was significantly more than during New ICT. Non ICT tasks had high muscle amplitudes and high variability. Combined ICT tasks had high muscle amplitudes but low variability. Rotating workers only between Old and New ICT tasks at work may not provide sufficient diversity of trapezius muscle activity to reduce the risk of MSDs, but may provide sufficient diversity of the dominant wrist extensors. Alternating paper and electronics-based tasks with Non ICT tasks may increase the effectiveness of task rotation interventions

Research paper thumbnail of A practical guidance for assessments of sedentary behavior at work: A PEROSH initiative

Applied ergonomics, 2017

Sedentary behavior is defined as sitting or lying with low energy expenditure. Humans in industri... more Sedentary behavior is defined as sitting or lying with low energy expenditure. Humans in industrialized societies spend an increasing amount of time in sedentary behaviors every day. This has been associated with detrimental health outcomes. Despite a growing interest in the health effects of sedentary behavior at work, associations remain unclear, plausibly due to poor and diverse methods for assessing sedentary behavior. Thus, good practice guidance for researchers and practitioners on how to assess occupational sedentary behavior are needed. The aim of this paper is to provide a practical guidance for practitioners and researchers on how to assess occupational sedentary behavior. Ambulatory systems for use in field applications (wearables) are a promising approach for sedentary behavior assessment. Many different small-size consumer wearables, with long battery life and high data storage capacity are commercially available today. However, no stand-alone commercial system is able ...

Research paper thumbnail of Samband mellan ögon och nacke/skulder besvär bland professionella datoranvändare

Research paper thumbnail of Effects of Two Randomized and Controlled Multi-Component Interventions Focusing On 24-Hour Movement Behavior among Office Workers: A Compositional Data Analysis

International Journal of Environmental Research and Public Health, Apr 15, 2021

Research paper thumbnail of Alternations between physical and cognitive tasks in repetitive work – effect of cognitive task difficulty on fatigue development in women

Research paper thumbnail of ITKids Part I: Children's occupations and use of information and communication technologies

Work-a Journal of Prevention Assessment & Rehabilitation, 2011

Research paper thumbnail of Diversity of tasks and information technologies used by office workers at and away from work

Research paper thumbnail of Posture variation among office workers when using different information and communication technologies at work and away from work

Research paper thumbnail of Temporal patterns of sitting at work are associated with neck–shoulder pain in blue-collar workers: a cross-sectional analysis of accelerometer data in the DPHACTO study

International Archives of Occupational and Environmental Health, Mar 2, 2016

Research paper thumbnail of Sitting patterns after relocation to activity-based offices: A controlled study of a natural intervention

Preventive Medicine, Jun 1, 2018

Research paper thumbnail of Group-based exposure measurement strategies and their effects on trunk rotation and low-back pain exposure-outcome associations

Research paper thumbnail of Measurement strategy and statistical power in studies assessing gait stability and variability in older adults

Aging Clinical and Experimental Research, Jun 7, 2015

Research paper thumbnail of Occupational and Individual Determinants of Work-life Balance among Office Workers with Flexible Work Arrangements

International Journal of Environmental Research and Public Health, Feb 22, 2020

Research paper thumbnail of A comparison of standard and compositional data analysis in studies addressing group differences in sedentary behavior and physical activity

International Journal of Behavioral Nutrition and Physical Activity, Jun 15, 2018

Research paper thumbnail of What Determines Step-Rate at Work? An Investigation of Factors at the Shift, Worker, Ward, and Nursing Home Levels in Eldercare

Annals of Work Exposures and Health, Jun 17, 2021

Research paper thumbnail of Alternations between physical and cognitive tasks – does temporal pattern and cognitive task difficulty influence fatigue development?

Research paper thumbnail of Symposium: Arbete, individ och nacksmärta : Forskning vid Forte-centret “Kroppen i arbete – från problem till potential”

Besvar ifran kroppens muskler och leder sasom nack- och ryggbesvar ar fortfarande ett stort probl... more Besvar ifran kroppens muskler och leder sasom nack- och ryggbesvar ar fortfarande ett stort problem inom arbetslivet. Muskuloskeletal diagnos ar den vanligaste orsaken till lang sjukfranvaro inom p ...

Research paper thumbnail of Alternations between physical and mental tasks – a viable option for job rotation?

Research paper thumbnail of The effect of group-based exposure measurement strategies on the statistical significance of an association between lifting and low-back pain

The effect of group-based exposure measurement strategies on the statistical significance of an a... more The effect of group-based exposure measurement strategies on the statistical significance of an association between lifting and low-back pain

Research paper thumbnail of How does children’s postural variation when using ICT differ from that of adults

Ciccarelli, Marina, (author) Curtin University of Technology, Perth Straker, Leon, (author) Curti... more Ciccarelli, Marina, (author) Curtin University of Technology, Perth Straker, Leon, (author) Curtin University of Technology, Perth Mathiassen, Svend Erik, (author) Högskolan i Gävle, Centrum för belastningsskadeforskning show more... Pollock, Clare, (author) Curtin University of ...

Research paper thumbnail of How much variation does task rotation in the computerised office really provide

Musculoskeletal disorders (MSDs) are associated with information and communication technology (IC... more Musculoskeletal disorders (MSDs) are associated with information and communication technology (ICT) use among office workers. Current ergonomics research supports variation of muscle activity to mitigate the risk of MSDs. Task rotation is often used to increase variation, but to be effective, consecutive tasks should differ in exposures. Quantification of exposure variability among workers in computerised offices has not been widely researched. This study aimed to determine if there was a difference in variability of upper body muscle activity among office workers when performing tasks using Old ICT(paper-based), New ICT(electronics-based), Combined ICT(paper and electronics-based) and Non ICT tasks. Twenty-four office workers were observed in their natural environments for 10-12 h, while muscle activity of bilateral upper trapezius and the dominant wrist extensors was measured with electromyography (EMG). Tasks and ICT used were documented by an observer and matched to synchronous EMG data. There was no difference in mean amplitudes and variability of trapezius muscle during Old and New ICT tasks. Variation in the right wrist extensors during Old ICT tasks was significantly more than during New ICT. Non ICT tasks had high muscle amplitudes and high variability. Combined ICT tasks had high muscle amplitudes but low variability. Rotating workers only between Old and New ICT tasks at work may not provide sufficient diversity of trapezius muscle activity to reduce the risk of MSDs, but may provide sufficient diversity of the dominant wrist extensors. Alternating paper and electronics-based tasks with Non ICT tasks may increase the effectiveness of task rotation interventions

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