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  • 1.
    Flykt, Anders
    et al.
    University of Gävle, Department of Education and Psychology, Ämnesavdelningen för psykologi.
    Bänziger, Tanja
    University of Gävle, Centre for Musculoskeletal Research.
    Lindeberg, Sofie
    University of Gävle, Department of Education and Psychology, Ämnesavdelningen för psykologi.
    Voice parameters, heart rate changes, and skin conductance responses in animal fear2009In: Psychophysiology, ISSN 0048-5772, E-ISSN 1469-8986, Vol. 46, no Special issue, p. S57-S57Article in journal (Other academic)
  • 2.
    Karlsson, Thomas
    et al.
    University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational and Public Health Sciences, CBF. University of Gävle, Centre for Musculoskeletal Research.
    Wijk, Katarina
    University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational and Public Health Sciences, CBF. University of Gävle, Centre for Musculoskeletal Research.
    Bänziger, Tanja
    University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational and Public Health Sciences, CBF. University of Gävle, Centre for Musculoskeletal Research.
    A description of work environment management in succesful companies2011In: Wellbeing and Innovations Through Ergonomics: Proceedings of NES2011, September 18-21, 2011, Oulu, Finland / [ed] Juha Lindfors, Merja Savolainen & Seppo Väyrynen, Nordic Ergonomics Society , 2011, p. 460-465Conference paper (Refereed)
    Abstract [en]

    A good work environment can support companies' competitiveness, but many managers mostly associate ergonomics with occupational health and safety. In the process of managing the work environment and creating a good working environment, company managers have a central role. This article investigated managers' own descriptions of the work environment management (WEM). The study group consisted of successful companies (n=142) in a county of Sweden. The managers' descriptions were categorised into nine categories. The most frequently described category was “PhysicalFactors at work”, followed by “Manuals and Standardisation”, and “EmployeeInvolvement and Interaction”.

  • 3.
    Richter, Hans
    et al.
    University of Gävle, Centre for Musculoskeletal Research.
    Bänziger, Tanja
    University of Gävle, Centre for Musculoskeletal Research.
    Saber, A
    Forsman, Mikael
    Low-level experimental accommodative/vergence load and trapezius muscle activity2009In: Proceedings of 17th World Congress of Ergonomics, 2009Conference paper (Refereed)
  • 4.
    Richter, Hans O.
    et al.
    University of Gävle, Centre for Musculoskeletal Research.
    Bänziger, Tanja
    Abdi, S.
    Forsman, Mikael
    Low-level sustained accommodative/vergence loads, eyestrain and trapezius muscle activity2008In: Perception, ISSN 0301-0066, E-ISSN 1468-4233, Vol. 37, no Suppl., p. 24-24Article in journal (Refereed)
  • 5.
    Richter, Hans O.
    et al.
    University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational and Public Health Sciences, CBF. University of Gävle, Centre for Musculoskeletal Research.
    Bänziger, Tanja
    University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational and Public Health Sciences, CBF. University of Gävle, Centre for Musculoskeletal Research.
    Abdi, S.
    The Bernadotte Laboratories, St. Erik’s Eye Hospital, Department of Clinical Neuroscience, Karolinska Institutet, Sweden.
    Forsman, Mikael
    Division of Occupational and Environmental Medicine, Department of Public Health Sciences, Karolinska Institutet, Sweden.
    Stabilization of gaze: A relationship between ciliary muscle contraction and trapezius muscle activity2010In: Vision Research, ISSN 0042-6989, E-ISSN 1878-5646, Vol. 50, no 23, p. 2559-2569Article in journal (Refereed)
    Abstract [en]

    In an experimental study four levels of oculomotor load were induced binocularly. Trapezius muscle activity was measured with bipolar surface electromyography and normalized to a submaximal contraction. Twenty-eight subjects with a mean age of 29 (range 19–42, std 8) viewed a high-contrast fixationt arget for four 5-min periods through: (i) 3.5 dioptre (D) lenses; (ii) 0 D lenses; (iii) individuallya djusted prism D lenses (1–2 D base out); and (iv) +3.5 D lenses. The target was placed close to thei ndividual’s age-appropriate near point of accommodation in conditions (i–iii) and at 3 m in condition( iv). Each subject’s ability to compensate for the added blur was extracted via infrared photorefraction measurements. A bitwise linear regression model was fitted on group level with eye-lens refraction on the x-axis and normalized trapezius muscle EMG (%RVE) on the y -axis. The model had a constant level of trapezius muscle activity – where subjects had not compensated for the incurred defocus by a change in eye-lens accommodation – and a slope, where the subjects had compensated. The slope coefficient was significantly positive in the D (i) and the +D blur conditions (iv). During no blur (ii) and prism blur (iii) there were no signs of relationships. Nor was there any sign of relationship between the convergence response and trapezius muscle EMG in any of the experimental conditions. The results appear directly attributable to an engagement of the eye-lens accommodative system and most likely reflect sensorimotor processing along its reflex arc for the purpose of achieving stabilization of gaze

  • 6.
    Richter, Hans O.
    et al.
    University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational and Public Health Sciences, CBF. University of Gävle, Centre for Musculoskeletal Research.
    Bänziger, Tanja
    University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational and Public Health Sciences, CBF. University of Gävle, Centre for Musculoskeletal Research.
    Forsman, Mikael
    Division of Occupational and Environmental Medicine, Department of Public Health Sciences, Karolinska Institutet, Sweden.
    Eye-lens accommodation load and static trapezius muscle activity2011In: European Journal of Applied Physiology, ISSN 1439-6319, E-ISSN 1439-6327, Vol. 111, no 1, p. 29-36Article in journal (Refereed)
    Abstract [en]

    The purpose of this experimental study was to investigate if sustained periods of oculomotor load impacts on neck/scapular area muscle activity. The static trapezius muscle activity was assessed from bipolar surface electromyography, normalized to a submaximal contraction. Twenty-eight subjects with a mean age of 29 (range 19–42, SD 8) viewed a high-contrast fixation target for two 5-min periods through: (1) -3.5 dioptre (D) lenses; and (2) 0 D lenses. The target was placed 5 D away from the individual’s near point of accommodation. Each subject’s ability to compensate for the added blur was extracted via infrared photorefraction measurements. Subjects whose accommodative response was higher in the -D blur condition (1) showed relatively more static bilateral trapezius muscle activity level. During no blur (2) there were no signs of relationships. The results indicate that sustained eye-lens accommodation at near, during ergonomically unfavourable viewing conditions, could possibly represent a risk factor for trapezius muscle myalgia.

1 - 6 of 6
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