hig.sePublications
Change search
Link to record
Permanent link

Direct link
BETA
Alternative names
Publications (10 of 70) Show all publications
Jahncke, H., Hygge, S., Mathiassen, S. E., Hallman, D., Mixter, S. & Lyskov, E. (2017). Variation at work: alternations between physically and mentally demanding tasks in blue-collar occupations. Ergonomics, 60(9), 1218-1227
Open this publication in new window or tab >>Variation at work: alternations between physically and mentally demanding tasks in blue-collar occupations
Show others...
2017 (English)In: Ergonomics, ISSN 0014-0139, E-ISSN 1366-5847, Vol. 60, no 9, p. 1218-1227Article in journal (Refereed) Published
Abstract [en]

The aims of this questionnaire study were to describe the occurrence and desired number of alternations between mental and physical tasks in industrial and non-industrial blue-collar work, and determine to which extent selected personal and occupational factors influence these conditions. On average, the 122 participating workers (55 females) reported to have close to four alternations per day between mental and physical tasks, and to desire more alternations than they actually had. They also expressed a general preference for performing a physical task after a mental task and vice versa. In univariate regression models, the desired change in task alternations was significantly associated with Gender, Age, Occupation, Years with current work tasks, and Perceived job control, while Occupation was the only significant determinant in a multiple regression model including all factors. Our results suggest that alternations between productive physical and mental tasks could be a viable option in future job rotation.

Keywords
cognitive task, job rotation, pause, physical variation, repetitive work
National Category
Occupational Health and Environmental Health
Identifiers
urn:nbn:se:hig:diva-22560 (URN)10.1080/00140139.2017.1282630 (DOI)000405845900004 ()28112588 (PubMedID)2-s2.0-85011278003 (Scopus ID)
Funder
AFA Insurance, 120223
Available from: 2016-10-07 Created: 2016-10-07 Last updated: 2018-03-22Bibliographically approved
Jahncke, H., Hygge, S., Mathiassen, S. E., Hallman, D., Mixter, S. & Lyskov, E. (2016). A cross-sectional study of alternations between physical and mental tasks. In: : . Paper presented at Ninth International Conference on the Prevention of Work-Related Musculoskeletal Disorders (PREMUS), June 20-23, 2016, Toronto, Canada.
Open this publication in new window or tab >>A cross-sectional study of alternations between physical and mental tasks
Show others...
2016 (English)Conference paper, Published paper (Refereed)
Abstract [en]

Background. Health and well-being at work is generally assumed to be associated with sufficient physical and mental variation. Job rotation, where workers typically alternate between different physical tasks, is a popular initiative. Controlled experiments suggest that favourable effects are associated with alternations between mental and physical tasks, but little is known about this intervention in real work. The aims of this study were (1) to describe the occurrence of alternations between mental and physical tasks, and (2) to identify key determinants of such alternations.

Method. We developed a questionnaire combining established questions with specific questions about alternations. Workers from two occupations (industrial and non-industrial blue-collar work), in jobs containing both physical and mental tasks, were included in the study. 122 (55 females) out of 293 workers approached at four companies answered the questionnaire.

Results. On average, the workers alternated 3.5 times per day between mental and physical tasks. In the non-industrial companies, workers reported wanting more alternations than they had, while desired and actual alternations did not differ in the industrial companies. This effect of occupation on the difference between the number of alternations wanted and the actual alternations available was significant (p < 0.001). Furthermore, there was a general preference for performing a physical task after a mental task, and vice versa. This main effect of primarily performed task type (i.e. either physical or mental) on preferred subsequent task type was significant (p < 0.001). In a univariate analysis, gender appeared to be a strong determinant of the occurrence of alternations, but the effect was absorbed when adding the occupation variable.

Discussion. Within the studied companies, work offered alternations between mental and physical tasks and there was a preference among workers to alternate between tasks. Occupation rather than gender was a key determinant of the number of alternations reported.

National Category
Occupational Health and Environmental Health
Identifiers
urn:nbn:se:hig:diva-21905 (URN)
Conference
Ninth International Conference on the Prevention of Work-Related Musculoskeletal Disorders (PREMUS), June 20-23, 2016, Toronto, Canada
Available from: 2016-06-23 Created: 2016-06-23 Last updated: 2018-12-03Bibliographically approved
Srinivasan, D., Mathiassen, S. E., Hallman, D. M., Samani, A., Madeleine, P. & Lyskov, E. (2016). Effects of concurrent physical and cognitive demands on muscle activity and heart rate variability in a repetitive upper-extremity precision task. European Journal of Applied Physiology, 116(1), 227-239
Open this publication in new window or tab >>Effects of concurrent physical and cognitive demands on muscle activity and heart rate variability in a repetitive upper-extremity precision task
Show others...
2016 (English)In: European Journal of Applied Physiology, ISSN 1439-6319, E-ISSN 1439-6327, Vol. 116, no 1, p. 227-239Article in journal (Refereed) Published
Abstract [en]

Purpose Most previous studies of concurrent physical and cognitive demands have addressed tasks of limited relevance to occupational work, and with dissociated physical and cognitive task components. This study investigated effects on muscle activity and heart rate variability of executing a repetitive occupational task with an added cognitive demand integral to correct task performance.

Methods Thirty-five healthy females performed 7.5 min of standardized repetitive pipetting work in a baseline condition and a concurrent cognitive condition involving a complex instruction for correct performance. Average levels and variabilities of electromyographic activities in the upper trapezius and extensor carpi radialis (ECR) muscles were compared between these two conditions. Heart rate and heart rate variability were also assessed to measure autonomic nervous system activation. Subjects also rated perceived fatigue in the neck–shoulder region, as well as exertion.

Results Concurrent cognitive demands increased trapezius muscle activity from 8.2 % of maximum voluntary exertion (MVE) in baseline to 9.0 % MVE (p = 0.0005), but did not significantly affect ECR muscle activity, heart rate, heart rate variability, perceived fatigue or exertion.

Conclusion Trapezius muscle activity increased by about 10 %, without any accompanying cardiovascular response to indicate increased sympathetic activation. We suggest this slight increase in trapezius muscle activity to be due to changed muscle activation patterns within or among shoulder muscles. The results suggest that it may be possible to introduce modest cognitive demands necessary for correct performance in repetitive precision work without any major physiological effects, at least in the short term.

Place, publisher, year, edition, pages
Springer, 2016
Keywords
Mental demands, cycle to cycle variability, entropy, pipetting, autonomic nervous system
National Category
Occupational Health and Environmental Health
Identifiers
urn:nbn:se:hig:diva-19400 (URN)10.1007/s00421-015-3268-8 (DOI)000367610200022 ()26403235 (PubMedID)2-s2.0-84952984643 (Scopus ID)
Projects
Motorvar
Funder
Forte, Swedish Research Council for Health, Working Life and Welfare, 2009-1761Forte, Swedish Research Council for Health, Working Life and Welfare, 2011-0075
Available from: 2015-05-28 Created: 2015-05-28 Last updated: 2018-03-13Bibliographically approved
Lyskov, E., Hallman, D. & Mathiassen, S. E. (2015). Directly measured physical activity and heart rate variability among workers with and without musculoskeletal disorders. In: University of Limerick (Ed.), : . Paper presented at 4th International Conference on Ambulatory Monitoring of Physical Activity and Movement (ICAMPAM), Limerick, Ireland, June 10-12, 2015 (pp. 74).
Open this publication in new window or tab >>Directly measured physical activity and heart rate variability among workers with and without musculoskeletal disorders
2015 (English)In: / [ed] University of Limerick, 2015, p. 74-Conference paper, Poster (with or without abstract) (Refereed)
Abstract [en]

Background

Aberration in autonomous nervous system regulation may play an important role in the development of work related musculoskeletal disorders (MSD). Recent studies indicated that sympathetic activity was increased relative to vagal effects in subjects with MSD, as measured through heart rate variability (HRV). However, the cause of this physiological change is difficult to determine, since several factors influence HRV, almost importantly the pattern of daily physical activity (PA).The aim of this study was to identify possible differences in PA between workers with and without MSD, and assess associations between HRV and PA. Methods: Twenty-six workers with MSD (41 years, 13 females) and twenty-four matched symptom-free controls from an industry in mid-Sweden participated in the study. ECG was monitored by the First Beat system whereas PA was recorded by a tri-axial accelerometer ActivPAL attached to thigh. GPS data were collected to identify the spatial location of the participants

Results

The groups showed similar distributions of total time spent at work, at home and "elsewhere". The lowest PA levels were found at work for both groups. Leisure time PA "elsewhere" was significantly lower among subjects with MSD than among controls. Time domain HRV variables were clearly correlated with PA levels and showed trend differences (0.05<p<0.1) between the MSD and the control group during sedentary and physically active periods.

Conclusions

Workers with MSD showed a different pattern of leisure time PA compared with symptom-free workers. These PA differences may have contributed in explaining the difference in autonomic activity, as measured through HRV, observed between the two groups, and even in previous studies of similar groups.

National Category
Occupational Health and Environmental Health
Identifiers
urn:nbn:se:hig:diva-19688 (URN)
Conference
4th International Conference on Ambulatory Monitoring of Physical Activity and Movement (ICAMPAM), Limerick, Ireland, June 10-12, 2015
Projects
STIMUL
Available from: 2015-06-16 Created: 2015-06-16 Last updated: 2018-03-13Bibliographically approved
Hallman, D. M., Mathiassen, S. E. & Lyskov, E. (2015). Long-term monitoring of physical behavior reveals different cardiac responses to physical activity among subjects with and without chronic neck pain. BioMed Research International, 2015, Article ID 907482.
Open this publication in new window or tab >>Long-term monitoring of physical behavior reveals different cardiac responses to physical activity among subjects with and without chronic neck pain
2015 (English)In: BioMed Research International, ISSN 2314-6133, E-ISSN 2314-6141, Vol. 2015, article id 907482Article in journal (Refereed) Published
Abstract [en]

Background We determined the extent to which heart rate variability (HRV) responses to daily physical activity differ between subjects with and without chronic neck pain.

Method Twenty-nine subjects (13 women) with chronic neck pain and 27 age- and gender-matched healthy controls participated. Physical activity (accelerometry), HRV (heart rate monitor) and spatial location (Global Positioning System (GPS)) were recorded for 74 hours. GPS data were combined with a diary to identify periods of work, and of leisure at home and elsewhere. Time- and frequency-domain HRV indices were calculated, and stratified by period and activity type (lying/sitting, standing, or walking). ANCOVAs with multiple adjustments were used to disclose possible group differences in HRV.

Results The pain group showed a reduced HRV response to physical activity compared with controls (p=.001), according to the sympathetic-baroreceptor HRV index (LF/HF, ratio between low and high frequency power), even after adjustment for leisure time physical activity, work stress, sleep quality, mental health, and aerobic capacity (p=.02). The parasympathetic response to physical activity did not differ between groups.

Conclusions Relying on long-term monitoring of physical behavior and heart rate variability, we found an aberrant sympathetic-baroreceptor response to daily physical activity among subjects with chronic neck pain.

Keywords
Autonomic regulation; baroreceptor; sympathetic nervous system; chronic pain; accelerometer
National Category
Occupational Health and Environmental Health
Identifiers
urn:nbn:se:hig:diva-19139 (URN)10.1155/2015/907482 (DOI)000364086900001 ()26557711 (PubMedID)2-s2.0-84947087511 (Scopus ID)
Projects
STIMUL
Available from: 2015-03-23 Created: 2015-03-23 Last updated: 2018-04-03Bibliographically approved
Mathiassen, S. E., Hallman, D., Lyskov, E. & Hygge, S. (2014). Can cognitive activities during breaks in repetitive manual work accelerate recovery from fatigue? A controlled experiment. PLoS ONE, 9(11), Article ID e112090.
Open this publication in new window or tab >>Can cognitive activities during breaks in repetitive manual work accelerate recovery from fatigue? A controlled experiment
2014 (English)In: PLoS ONE, ISSN 1932-6203, E-ISSN 1932-6203, Vol. 9, no 11, article id e112090Article in journal (Refereed) Published
Abstract [en]

Neurophysiologic theory and some empirical evidence suggests that fatigue caused by physical work maybe more effectively recovered during “diverting” periods of cognitive activity than during passive rest; a phenomenon of great interest in working life. We investigated the extent to which development and recovery of fatigue during repeated bouts of an occupationally relevant reaching task was influenced by the complexity of a cognitive activity between these bouts. Eighteen male volunteers performed three sessions, consisting of six 7-min bouts of reaching alternating with 3minutes of a memory test differing in complexity between sessions. Throughout the session, recordings were made of upper trapezius muscle activity using electromyography (EMG), heart rate and heart rate variability (HRV) using electrocardiography,arterial blood pressure, and perceived fatigue (Borg CR10 scale and SOFI). A test battery before, immediately after and 1 hour after the work period included measurements of shoulder elevation strength (MVC), pressure pain threshold (PPT) over the trapezius muscles, and a submaximal isometric contraction. As intended, perceived fatigue, HRV, and EMG amplitude increased during the physical work bouts. Recovery did occur between the bouts, but fatigue accumulated throughout the work period. Neither EMG changes nor recovery of perceived fatigue during breaks were influenced by cognitive task complexity, while heart rate and HRV recovered the most during breaks with the most difficult task. Recovery of perceived fatigue after the 1 hour work period was also most pronounced for the most difficult cognitive condition, while MVC and PPT showed ambiguous patterns, and EMG recovered similarly after all three cognitive protocols. Thus, we could confirm that cognitive tasks between bouts of fatiguing physical work can,indeed, accelerate recovery of central components of fatigue, even if benefits may be moderate. Our results encourage further research into combinations of physical and mental tasks in an occupational context.

Keywords
physical work, mental tasks, variation, intermittent work, rest breaks, electromyography, heart rate variability, pressure pain threshold, perceived fatigue
National Category
Occupational Health and Environmental Health
Identifiers
urn:nbn:se:hig:diva-17180 (URN)10.1371/journal.pone.0112090 (DOI)000344402600102 ()25375644 (PubMedID)2-s2.0-84910643695 (Scopus ID)
Available from: 2014-06-28 Created: 2014-06-28 Last updated: 2018-12-03Bibliographically approved
Hallman, D., Hed Ekman, A. & Lyskov, E. (2014). Changes in physical activity and heart rate variability in chronic neck-shoulder pain: monitoring during work and leisure time. International Archives of Occupational and Environmental Health, 87(7), 735-744
Open this publication in new window or tab >>Changes in physical activity and heart rate variability in chronic neck-shoulder pain: monitoring during work and leisure time
2014 (English)In: International Archives of Occupational and Environmental Health, ISSN 0340-0131, E-ISSN 1432-1246, Vol. 87, no 7, p. 735-744Article in journal (Refereed) Published
Abstract [en]

OBJECTIVES: Neck-shoulder pain (NSP) is a common work-related musculoskeletal disorder with unclear mechanisms. Changes in physical activity and autonomic nervous system regulation may be involved in the pathogenesis of chronic NSP. The aim of the current study was to investigate autonomic regulation in relation to physical activity and perceived symptoms during work and leisure time among workers with chronic NSP (n = 29) as compared to a healthy control group (CON, n = 27).

METHODS: Physical activity was objectively monitored for 7 days using accelerometry. Beat-to-beat heart rate was collected continuously for 72 h, with simultaneous momentary ratings of pain, stress, and fatigue. Duration of sitting/lying, standing and walking, number of steps, and energy expenditure were used as measures of physical activity. Heart rate variability (HRV) indices were extracted in time and frequency domains as reflecting autonomic regulation. Data were divided into work hours, leisure time, and sleep.

RESULTS: The NSP group rated higher levels of stress and fatigue at work and leisure, and reduced sleep quality as compared to CON. Elevated heart rate and reduced HRV were found in NSP compared with CON, especially during sleep. The NSP group demonstrated a different pattern of physical activity than CON, with a lower activity level in leisure time. Higher physical activity was associated with increased HRV in both groups.

CONCLUSION: Changes in HRV reflected an autonomic imbalance in workers with chronic musculoskeletal pain. This can be explained by reduced physical activity in leisure time. Intervention studies aimed at increasing physical activity may shed further light on the association between autonomic regulation and physical activity in work-related NSP.

Keywords
Heart rate variability, Trapezius myalgia, Sympathetic, Perceived stress, Daily physical activity
National Category
Occupational Health and Environmental Health
Identifiers
urn:nbn:se:hig:diva-13414 (URN)10.1007/s00420-013-0917-2 (DOI)000342203400006 ()24162088 (PubMedID)2-s2.0-84925507629 (Scopus ID)
Projects
7130
Available from: 2012-11-19 Created: 2012-11-19 Last updated: 2018-03-13Bibliographically approved
Ristiniemi, H., Perski, A., Lyskov, E. & Emtner, M. (2014). Hyperventilation and exhaustion syndrome. Scandinavian Journal of Caring Sciences, 28(4), 657-664
Open this publication in new window or tab >>Hyperventilation and exhaustion syndrome
2014 (English)In: Scandinavian Journal of Caring Sciences, ISSN 0283-9318, E-ISSN 1471-6712, Vol. 28, no 4, p. 657-664Article in journal (Refereed) Published
Abstract [en]

Chronic stress is among the most common diagnoses in Sweden, most commonly in the form of exhaustion syndrome (ICD-10 classification – F43.8). The majority of patients with this syndrome also have disturbed breathing (hyperventilation). The aim of this study was to investigate the association between hyperventilation and exhaustion syndrome. Thirty patients with exhaustion syndrome and 14 healthy subjects were evaluated with the Nijmegen Symptom Questionnaire (NQ). The participants completed questionnaires about exhaustion, mental state, sleep disturbance, pain and quality of life. The evaluation was repeated 4 weeks later, after half of the patients and healthy subjects had engaged in a therapy method called ‘Grounding’, a physical exercise inspired by African dance. The patients reported significantly higher levels of hyperventilation as compared to the healthy subjects. All patients’ average score on NQ was 26.57 ± 10.98, while that of the healthy subjects was 15.14 ± 7.89 (t = −3.48, df = 42, p < 0.001). The NQ scores correlated strongly with two measures of exhaustion (Karolinska Exhaustion Scale KES r = 0.772, p < 0.01; Shirom Melamed Burnout Measure SMBM r = 0.565, p < 0.01), mental status [Hospital Anxiety and Depression Score (HADS) depression r = 0.414, p < 0.01; HADS anxiety r = 0.627, p < 0.01], sleep disturbances (r = −0.514, p < 0.01), pain (r = −.370, p < 0.05) and poor well-being (Medical Outcomes Survey Short Form 36 questionnaire- SR Health r = −0.529, p < 0.05). In the logistic regression analysis, the variance in the scores from NQ were explained to a high degree (R2 = 0.752) by scores in KES and HADS. The brief Grounding training contributed to a near significant reduction in hyperventilation (F = 2.521, p < 0.124) and to significant reductions in exhaustion scores and scores of depression and anxiety. The conclusion is that hyperventilation is common in exhaustion syndrome patients and that it can be reduced by systematic physical therapy such as Grounding.

Keywords
stress, burnout, hyperventilation
National Category
Nursing
Identifiers
urn:nbn:se:hig:diva-15311 (URN)10.1111/scs.12090 (DOI)000345314000004 ()24134551 (PubMedID)2-s2.0-84885800096 (Scopus ID)
Available from: 2013-09-18 Created: 2013-09-18 Last updated: 2018-03-13Bibliographically approved
Hallman, D., Mathiassen, S. E., Hed-Ekman, A. & Lyskov, E. (2014). Physical activity patterns in workers with neck pain assessed using accelerometry and GPS. In: : . Paper presented at XI Nordic ergonomics society annual conference 46 (ODAM/NES) - Human factors in organizational design and management, 17-20 august, 2014, Copenhagen, Denmark (pp. 51-52). Santa Monica, CA, USA: IEA press
Open this publication in new window or tab >>Physical activity patterns in workers with neck pain assessed using accelerometry and GPS
2014 (English)Conference paper, Published paper (Refereed)
Abstract [en]

Background:

Decreased physical activity levels have been found among subjects with work-related musculoskeletal disorders (MSD). Still, little is known about the distribution of physical activity and sedentary behavior over a work day, and whether these patterns differ between work and leisure time. Our aim was to characterize and compare physical activity patterns at work and leisure time (spent at home or elsewhere) among office workers with MSD and asymptomatic controls.

Methods:

Seventeen office workers (11f, 6m; mean age 41(SD=11) years) with neck-shoulder pain, and 17 age- and gender-matched asymptomatic office workers participated. Physical activity and sedentary behavior were monitored continuously for seven days using a single tri-axial accelerometer (ActivPAL). During four consecutive work-days within this period, data from a geographical positioning system (GPS) detector installed on a smartphone was combined with a written diary to identify the location (work place, leisure "at home" and "elsewhere") of the participants. Differences between groups in mean physical activity levels (excluding sleep) stratified by location were analysed with ANOVA. Physical activity patterns were expressed using Exposure Variation Analysis (EVA), showing the percentage of time spent in periods of different durations (<1min, 1-5min, 5-10min, 10-30min, 30-60min, >60min) of sitting/lying, standing, and walking.

Results:

In both groups, the lowest activity levels were found at work. Leisure "elsewhere" showed less %time in long bouts (>30min) of sitting/lying and more %time in walking (5-10 and 10-30 min bouts) compared with "home". Workers with pain did not increase their leisure activity level "elsewhere" compared with "home" to the same extent as controls, which was mainly reflected in a larger %time in prolonged periods (>30 min) of sitting/lying among those with pain.

Conclusion:

The combination of accelerometry and GPS allowed a detailed characterization of physical activity patterns stratified by location among office workers. Some differences were found between workers with and without MSD, which need further investigation as to their effects on health and well-being.

Place, publisher, year, edition, pages
Santa Monica, CA, USA: IEA press, 2014
Keywords
physical activity, neck pain, GPS
National Category
Health Sciences
Identifiers
urn:nbn:se:hig:diva-17430 (URN)10.4122/dtu:2202 (DOI)
Conference
XI Nordic ergonomics society annual conference 46 (ODAM/NES) - Human factors in organizational design and management, 17-20 august, 2014, Copenhagen, Denmark
Projects
MONA 3
Note

Part of session B1 Physical work life balance.

Available from: 2014-08-28 Created: 2014-08-28 Last updated: 2018-12-03Bibliographically approved
Aleksandrov, A. A., Deinekina, T. S., Mathiassen, S. E. & Lyskov, E. B. (2014). ВЛИЯНИЕ НАБЛЮДЕНИЯ ЗА ДВИЖЕНИЕМ НА ВОССТАНОВЛЕНИЕ РАБОТОСПОСОБНОСТИ ПОСЛЕ ФИЗИЧЕСКОГО УТОМЛЕНИЯ [The influence of movement's observation on recuperation after physical fatigue]. Zurnal vyssej nervnoj deâtel'nosti im. I.P. Pavlova, 64(5), 481-487
Open this publication in new window or tab >>ВЛИЯНИЕ НАБЛЮДЕНИЯ ЗА ДВИЖЕНИЕМ НА ВОССТАНОВЛЕНИЕ РАБОТОСПОСОБНОСТИ ПОСЛЕ ФИЗИЧЕСКОГО УТОМЛЕНИЯ [The influence of movement's observation on recuperation after physical fatigue]
2014 (Russian)In: Zurnal vyssej nervnoj deâtel'nosti im. I.P. Pavlova, ISSN 0044-4677, Vol. 64, no 5, p. 481-487Article in journal (Refereed) Published
Abstract [en]

The study aim was to investigate effects of mental activity, accompanied by mu-rhythm depression, on recuperation after physical fatigue. In a study participants performed 11 one minute bouts of static hand grip intermitted by 2 minutes rest pauses. During pauses participants watched video with either dynamic hand grips (biological movements) or deformation of geometric figure (control). Obtained data showed there was a significant depression of mu-rhythm during biological movement's observation. There was significant fatigue of subjects in an exercise with physical activity, but there was no reliable influence of performed mental activity on recovery after fatigue.

Keywords
mu-rhythm, mu-rhythm depression, central fatigue, muscle fatigue, recuperation after fatigue, Sechenov phenomenon
National Category
Occupational Health and Environmental Health
Identifiers
urn:nbn:se:hig:diva-18892 (URN)10.7868/S0044467714050037 (DOI)000346956800001 ()2-s2.0-84925025245 (Scopus ID)
Available from: 2015-01-30 Created: 2015-01-30 Last updated: 2018-03-13Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0002-4094-3391

Search in DiVA

Show all publications