Mikko Härmä

Summary

Affiliation: Finnish Institute of Occupational Health
Country: Finland

Publications

  1. doi request reprint Effects of 6/6 and 4/8 watch systems on sleepiness among bridge officers
    Mikko Härmä
    Centre of Expertise on Human Factors at Work, Finnish Institute of Occupational Health, Helsinki, Finland
    Chronobiol Int 25:413-23. 2008
  2. ncbi request reprint The effect of an irregular shift system on sleepiness at work in train drivers and railway traffic controllers
    M Harma
    Brain Work Laboratories, Finnish Institute of Occupational Health, Helsinki, Finland
    J Sleep Res 11:141-51. 2002
  3. ncbi request reprint A controlled intervention study on the effects of a very rapidly forward rotating shift system on sleep-wakefulness and well-being among young and elderly shift workers
    Mikko Härmä
    Brain Work Research Center Finnish Institute of Occupational Health, Department of Physiology, Topeliuksenkatu 41 a A, 00250 Helsinki, Finland
    Int J Psychophysiol 59:70-9. 2006
  4. ncbi request reprint Workhours in relation to work stress, recovery and health
    Mikko Härmä
    Finnish Institute of Occupational Health, Centre of Expertise on Human Factors at Work, Topeliuksenkatu 41 a A, FI 00250 Helsinki, Finland
    Scand J Work Environ Health 32:502-14. 2006
  5. doi request reprint Sleep restriction for the duration of a work week impairs multitasking performance
    Marja Leena Haavisto
    Brain and Work Research Centre, Finnish Institute of Occupational Health, Helsinki, Finland
    J Sleep Res 19:444-54. 2010
  6. ncbi request reprint Is incomplete recovery from work a risk marker of cardiovascular death? Prospective evidence from industrial employees
    Mika Kivimaki
    Department of Psychology, Finnish Institute of Occupational Health, Topeliuksenkatu 41 aA, FI 00250 Helsinki, Finland
    Psychosom Med 68:402-7. 2006
  7. ncbi request reprint Recovery of cognitive performance from sleep debt: do a short rest pause and a single recovery night help?
    Mikael Sallinen
    Brain and Work Research Centre, Finnish Institute of Occupational Health, Helsinki, Finland
    Chronobiol Int 25:279-96. 2008
  8. ncbi request reprint The use of two-channel electro-oculography in automatic detection of unintentional sleep onset
    Jussi Virkkala
    Brain Work Research Center, Finnish Institute of Occupational Health, Helsinki, Finland
    J Neurosci Methods 163:137-44. 2007
  9. ncbi request reprint Job strain, sleep and alertness in shift working health care professionals -a field study
    Kati Karhula
    Finnish Institute of Occupational Health, Finland
    Ind Health 51:406-16. 2013
  10. doi request reprint Work-related factors, sleep debt and insomnia in IT professionals
    Marketta Kivistö
    Centre of Expertise for Health and Work Ability, Finnish Institute of Occupational Health, Topeliuksenkatu 41 a A, FI 00250 Helsinki, Finland
    Occup Med (Lond) 58:138-40. 2008

Detail Information

Publications22

  1. doi request reprint Effects of 6/6 and 4/8 watch systems on sleepiness among bridge officers
    Mikko Härmä
    Centre of Expertise on Human Factors at Work, Finnish Institute of Occupational Health, Helsinki, Finland
    Chronobiol Int 25:413-23. 2008
    ..The results suggest the 6/6 watch system is related to a higher risk of severe sleepiness during the early morning hours compared to the 4/8 and the other watch systems assessed...
  2. ncbi request reprint The effect of an irregular shift system on sleepiness at work in train drivers and railway traffic controllers
    M Harma
    Brain Work Laboratories, Finnish Institute of Occupational Health, Helsinki, Finland
    J Sleep Res 11:141-51. 2002
    ..The results indicate that adjustments for shift timing, length and off-duty time, in addition to actions aiming at extending the main sleep period, would probably decrease severe sleepiness in railway transportation...
  3. ncbi request reprint A controlled intervention study on the effects of a very rapidly forward rotating shift system on sleep-wakefulness and well-being among young and elderly shift workers
    Mikko Härmä
    Brain Work Research Center Finnish Institute of Occupational Health, Department of Physiology, Topeliuksenkatu 41 a A, 00250 Helsinki, Finland
    Int J Psychophysiol 59:70-9. 2006
    ..It is concluded that although the new shift system increased the operating hours at night, the very rapidly forward rotating shift system had positive effects on the sleep, alertness and well-being of especially the older shift workers...
  4. ncbi request reprint Workhours in relation to work stress, recovery and health
    Mikko Härmä
    Finnish Institute of Occupational Health, Centre of Expertise on Human Factors at Work, Topeliuksenkatu 41 a A, FI 00250 Helsinki, Finland
    Scand J Work Environ Health 32:502-14. 2006
    ....
  5. doi request reprint Sleep restriction for the duration of a work week impairs multitasking performance
    Marja Leena Haavisto
    Brain and Work Research Centre, Finnish Institute of Occupational Health, Helsinki, Finland
    J Sleep Res 19:444-54. 2010
    ..The recovery process of performance and sleepiness from the SR continued over the two recovery sleep opportunities. In all, our findings emphasise the importance of shift systems that do not restrict sleep for several consecutive days...
  6. ncbi request reprint Is incomplete recovery from work a risk marker of cardiovascular death? Prospective evidence from industrial employees
    Mika Kivimaki
    Department of Psychology, Finnish Institute of Occupational Health, Topeliuksenkatu 41 aA, FI 00250 Helsinki, Finland
    Psychosom Med 68:402-7. 2006
    ..A chronic lack of recovery from work during leisure time is hypothesized to indicate a health risk among employees. We examined whether incomplete recovery from work predicted cardiovascular mortality...
  7. ncbi request reprint Recovery of cognitive performance from sleep debt: do a short rest pause and a single recovery night help?
    Mikael Sallinen
    Brain and Work Research Centre, Finnish Institute of Occupational Health, Helsinki, Finland
    Chronobiol Int 25:279-96. 2008
    ..Persons whose cognitive performance is most affected by sleep debt are likely to require the most sleep to recover...
  8. ncbi request reprint The use of two-channel electro-oculography in automatic detection of unintentional sleep onset
    Jussi Virkkala
    Brain Work Research Center, Finnish Institute of Occupational Health, Helsinki, Finland
    J Neurosci Methods 163:137-44. 2007
    ..The developed method has to be tested in field applications. The advantage of the automatic method is that it could be applied during online recordings using only four disposable self-adhesive self-applicable electrodes...
  9. ncbi request reprint Job strain, sleep and alertness in shift working health care professionals -a field study
    Kati Karhula
    Finnish Institute of Occupational Health, Finland
    Ind Health 51:406-16. 2013
    ..Shift working contributed to impaired sleep in both high and low job strain group. Individual and organization-based actions are needed to promote sufficient sleep in shift working nurses, especially with high job strain. ..
  10. doi request reprint Work-related factors, sleep debt and insomnia in IT professionals
    Marketta Kivistö
    Centre of Expertise for Health and Work Ability, Finnish Institute of Occupational Health, Topeliuksenkatu 41 a A, FI 00250 Helsinki, Finland
    Occup Med (Lond) 58:138-40. 2008
    ..Reduced sleep can be associated with a risk of health problems. Information technologies (IT) professionals often work long hours and this could have an effect on their sleep quality...
  11. ncbi request reprint The effects of sleep debt and monotonous work on sleepiness and performance during a 12-h dayshift
    Mikael Sallinen
    Brain and Work Research Units, Finnish Institute of Occupational Health, Helsinki, Finland
    J Sleep Res 13:285-94. 2004
    ..The results support the view that the last hours of a single 12-h dayshift with frequent pauses are not associated with an increase in sleepiness or performance errors...
  12. doi request reprint Effects of cumulative sleep restriction on self-perceptions while multitasking
    Mikael Sallinen
    Centre of Expertise for Human Factors at Work, Finnish Institute of Occupational Health, Helsinki, Finland
    J Sleep Res 22:273-81. 2013
    ..However, at the individual level these measures seem to be inaccurate in revealing actual performance impairments...
  13. pmc Environmental stress affects DNA methylation of a CpG rich promoter region of serotonin transporter gene in a nurse cohort
    Jukka S Alasaari
    Public Health Genomics Unit, National Institute for Health and Welfare, Helsinki, Finland
    PLoS ONE 7:e45813. 2012
    ..We explored the effect of environmental stress on serotonin transporter gene (SLC6A4) promoter methylation among nurses from high and low work stress environments...
  14. doi request reprint Sleep disturbances as a predictor of occupational injuries among public sector workers
    Simo Salminen
    Finnish Institute of Occupational Health, Topeliuksenkatu 41 a A, Helsinki, Finland
    J Sleep Res 19:207-13. 2010
    ..This study suggests that sleep disturbances are a significant predictor of occupational injuries even after accounting for a range of covariates...
  15. pmc Sleep restriction increases the risk of developing cardiovascular diseases by augmenting proinflammatory responses through IL-17 and CRP
    Wessel M A van Leeuwen
    Brain and Work Research Centre, Finnish Institute of Occupational Health, Helsinki, Finland
    PLoS ONE 4:e4589. 2009
    ..Our objective was to investigate the immunological effects of prolonged sleep restriction and subsequent recovery sleep, by simulating a working week and following recovery weekend in a laboratory environment...
  16. pmc Prolonged sleep restriction affects glucose metabolism in healthy young men
    Wessel M A van Leeuwen
    Brain and Work Research Centre, Finnish Institute of Occupational Health, Topeliuksenkatu 41 a A, 00250 Helsinki, Finland
    Int J Endocrinol 2010:108641. 2010
    ..No changes were observed in CON. The observed increase of serum IGF-1 and insulin-to-glucose ratio indicates that sleep restriction may result in an increased risk to develop type 2 diabetes...
  17. doi request reprint The relationship between current and former shift work and the metabolic syndrome
    Sampsa Puttonen
    Finnish Institute of Occupational Health, Topeliuksenkatu 41 a A, FIN 00250, Helsinki, Finland
    Scand J Work Environ Health 38:343-8. 2012
    ..The occurrence of possible health hazards among former shift workers is not well-known. We studied associations of former and current shift work with the metabolic syndrome (MetS)...
  18. doi request reprint Effect of shiftwork on systemic markers of inflammation
    Sampsa Puttonen
    Finnish Institute of Occupational Health, Helsinki, Finland
    Chronobiol Int 28:528-35. 2011
    ..044) were significant. Our results suggest that 2- and 3-shift work is associated with increased systemic inflammation and the relationship is relatively independent of the considered risk factors of cardiovascular disease...
  19. ncbi request reprint Shift work and cardiovascular disease - pathways from circadian stress to morbidity
    Sampsa Puttonen
    Centre of Expertise on Human Factors at Work, Finnish Institute of Occupational Health, FI 00250 Helsinki, Finland
    Scand J Work Environ Health 36:96-108. 2010
    ..The data provide evidence for possible disease mechanisms between shift work and CVD, but compelling evidence on any specific mechanism is missing...
  20. ncbi request reprint Sleepiness in various shift combinations of irregular shift systems
    Mikael Sallinen
    Brain Research Unit, Finnish Institute of Occupational Health, Topeliuksenkatu 41 a A, 00250 Helsinki, Finland
    Ind Health 43:114-22. 2005
    ....
  21. ncbi request reprint Sleep-wake rhythm in an irregular shift system
    Mikael Sallinen
    Brain and Work Research Units, and Department of Epidemiology and Biostatistics, Finnish Institute of Occupational Health, Helsinki, Finland
    J Sleep Res 12:103-12. 2003
    ..The results demonstrate advantageous and disadvantageous shift combinations in relation to sleep and make it possible to improve the ergonomy of irregular shift systems...
  22. ncbi request reprint Sleep disturbances as predictors of hospitalization for back disorders-a 28-year follow-up of industrial employees
    Leena Kaila-Kangas
    Finnish Institute of Occupational Health, Helsinki, Finland
    Spine (Phila Pa 1976) 31:51-6. 2006
    ..A prospective cohort study...