Rolf H Westgaard

Summary

Affiliation: Norwegian University of Science and Technology
Country: Norway

Publications

  1. pmc Trapezius activity of fibromyalgia patients is enhanced in stressful situations, but is similar to healthy controls in a quiet naturalistic setting: a case-control study
    Rolf Harald Westgaard
    Department of Industrial Economics and Technology Management, Norwegian University of Science and Technology, Trondheim, Norway
    BMC Musculoskelet Disord 14:97. 2013
  2. doi request reprint Occupational musculoskeletal and mental health: Significance of rationalization and opportunities to create sustainable production systems - A systematic review
    R H Westgaard
    Department of Industrial Economics and Technology Management, Norwegian University of Science and Technology, Trondheim, Norway
    Appl Ergon 42:261-96. 2011
  3. ncbi request reprint Respiratory and stress-induced activation of low-threshold motor units in the human trapezius muscle
    Rolf H Westgaard
    Institute of Industrial Economics and Technology Management, Norwegian University of Science and Technology, Trondheim, Norway
    Exp Brain Res 175:689-701. 2006
  4. ncbi request reprint Effects of physical and mental stressors on muscle pain
    R H Westgaard
    Institute of Industrial Economics and Technology Management, Norwegian Institute of Science and Technology, Trondheim
    Scand J Work Environ Health 25:19-24. 1999
  5. ncbi request reprint Motor control of low-threshold motor units in the human trapezius muscle
    R H Westgaard
    Neuromuscular Research Center, Boston University, Boston, Massachusetts 02215, USA
    J Neurophysiol 85:1777-81. 2001
  6. ncbi request reprint Work-related musculoskeletal complaints: some ergonomics challenges upon the start of a new century
    R H Westgaard
    Department of Industrial Economics and Technology Management, Norwegian University of Science and Technology, Trondheim
    Appl Ergon 31:569-80. 2000
  7. ncbi request reprint Trapezius muscle activity as a risk indicator for shoulder and neck pain in female service workers with low biomechanical exposure
    R H Westgaard
    Institute of Industrial Economics and Technology Management, Norwegian University of Science and Technology, Trondheim
    Ergonomics 44:339-53. 2001
  8. ncbi request reprint Further studies of shoulder and neck pain and exposures in customer service work with low biomechanical demands
    Kari Anne Holte
    Department of Industrial Economics and Technology Management, Norwegian University of Science and Technology, N 7491 Trondheim, Norway
    Ergonomics 45:887-909. 2002
  9. pmc Autonomic and muscular responses and recovery to one-hour laboratory mental stress in healthy subjects
    Kristian B Nilsen
    Norwegian University of Science and Technology, Faculty of Medicine, Department of Neurosciences, N 7489 Trondheim, Norway
    BMC Musculoskelet Disord 8:81. 2007
  10. ncbi request reprint The influence of body posture, arm movement, and work stress on trapezius activity during computer work
    Paul Jarle Mork
    Department of Industrial Economics and Technology Management, Norwegian University of Science and Technology, 7491, Trondheim, Norway
    Eur J Appl Physiol 101:445-56. 2007

Detail Information

Publications30

  1. pmc Trapezius activity of fibromyalgia patients is enhanced in stressful situations, but is similar to healthy controls in a quiet naturalistic setting: a case-control study
    Rolf Harald Westgaard
    Department of Industrial Economics and Technology Management, Norwegian University of Science and Technology, Trondheim, Norway
    BMC Musculoskelet Disord 14:97. 2013
    ..This study compares muscle responses of FM patients and HCs for different modes and levels of imposed stress, to elucidate features in stress exposures that distinguish stress responses of FM patients from HCs...
  2. doi request reprint Occupational musculoskeletal and mental health: Significance of rationalization and opportunities to create sustainable production systems - A systematic review
    R H Westgaard
    Department of Industrial Economics and Technology Management, Norwegian University of Science and Technology, Trondheim, Norway
    Appl Ergon 42:261-96. 2011
    ..It has considerable and mostly negative influence on worker health, but this can be reduced by attention to modifiers. The results create a basis for new priorities in ergonomic intervention research...
  3. ncbi request reprint Respiratory and stress-induced activation of low-threshold motor units in the human trapezius muscle
    Rolf H Westgaard
    Institute of Industrial Economics and Technology Management, Norwegian University of Science and Technology, Trondheim, Norway
    Exp Brain Res 175:689-701. 2006
    ..We speculate that the reduction in respiratory modulation of motor activity with mental stress is due to activation of alternative pathways providing excitatory input to trapezius motoneurons...
  4. ncbi request reprint Effects of physical and mental stressors on muscle pain
    R H Westgaard
    Institute of Industrial Economics and Technology Management, Norwegian Institute of Science and Technology, Trondheim
    Scand J Work Environ Health 25:19-24. 1999
    ..It is pointed out that a predominant reduction in physical work load for many jobs and an increasing interaction between work conditions and the general life situation of workers pose particular challenges for risk assessment...
  5. ncbi request reprint Motor control of low-threshold motor units in the human trapezius muscle
    R H Westgaard
    Neuromuscular Research Center, Boston University, Boston, Massachusetts 02215, USA
    J Neurophysiol 85:1777-81. 2001
    ..We speculate that Renshaw cell inhibition contributes to the observed deviation of the low-threshold motor units from the hierarchical onion-skin pattern...
  6. ncbi request reprint Work-related musculoskeletal complaints: some ergonomics challenges upon the start of a new century
    R H Westgaard
    Department of Industrial Economics and Technology Management, Norwegian University of Science and Technology, Trondheim
    Appl Ergon 31:569-80. 2000
    ..Finally, the need to put ergonomics intervention initiatives in an organisational context is emphasised, and examples of approaches used by Norwegian companies are presented...
  7. ncbi request reprint Trapezius muscle activity as a risk indicator for shoulder and neck pain in female service workers with low biomechanical exposure
    R H Westgaard
    Institute of Industrial Economics and Technology Management, Norwegian University of Science and Technology, Trondheim
    Ergonomics 44:339-53. 2001
    ..The possibility of pain-initiating mechanisms, associated with stress and not mediated through muscle activity, is considered in the discussion...
  8. ncbi request reprint Further studies of shoulder and neck pain and exposures in customer service work with low biomechanical demands
    Kari Anne Holte
    Department of Industrial Economics and Technology Management, Norwegian University of Science and Technology, N 7491 Trondheim, Norway
    Ergonomics 45:887-909. 2002
    ..The authors caution against relying on standardized quantitative questionnaires and/or physiological recordings to characterize work stress in occupations with emotional stress through client/customer service work...
  9. pmc Autonomic and muscular responses and recovery to one-hour laboratory mental stress in healthy subjects
    Kristian B Nilsen
    Norwegian University of Science and Technology, Faculty of Medicine, Department of Neurosciences, N 7489 Trondheim, Norway
    BMC Musculoskelet Disord 8:81. 2007
    ..We wanted to explore stress related physiology in healthy subjects in order to gain insight into mechanisms of pain development which may relate to the pathophysiology of musculoskeletal pain disorders...
  10. ncbi request reprint The influence of body posture, arm movement, and work stress on trapezius activity during computer work
    Paul Jarle Mork
    Department of Industrial Economics and Technology Management, Norwegian University of Science and Technology, 7491, Trondheim, Norway
    Eur J Appl Physiol 101:445-56. 2007
    ....
  11. ncbi request reprint Exploring perceived tension as a response to psychosocial work stress
    Kari Anne Holte
    Department of Industrial Economics and Technology Management, Norwegian University of Science and Technology, Trondheim, Norway
    Scand J Work Environ Health 29:124-33. 2003
    ..Tension was scored on a visual analogue scale (VAS) every hour, and trapezius muscle activity and heart rate were recorded. Ninety-four female workers from four service occupations participated...
  12. ncbi request reprint Long-term electromyographic activity in upper trapezius and low back muscles of women with moderate physical activity
    Paul Jarle Mork
    Department of Industrial Economics and Technology Management, Norwegian University of Science and Technology, N 7491 Trondheim, Norway
    J Appl Physiol 99:570-8. 2005
    ..g., mean burst time 40-50 vs. 10-20%). We conclude that postural trunk muscles show idiosyncratic activity patterns with large interindividual variation. High-threshold motor units are activated to a very minor extent...
  13. ncbi request reprint The association between nocturnal trapezius muscle activity and shoulder and neck pain
    Paul Jarle Mork
    Department of Industrial Economics and Technology Management, Norwegian University of Science and Technology, 7491 Trondheim, Norway
    Eur J Appl Physiol 92:18-25. 2004
    ....
  14. ncbi request reprint Data mining of motor patterns recorded with wearable technology
    Paolo Bonato
    Motion Analysis Laboratory, Dept of Physical Medicine and Rehabilitation, Harvard Medical School, Spaulding Rehabilitation Hospital, 125 Nashua Street, Boston, MA 02114, USA
    IEEE Eng Med Biol Mag 22:110-9. 2003
  15. pmc Cardiovascular responses to cognitive stress in patients with migraine and tension-type headache
    Rune B Leistad
    Department of Neurosciences, Norwegian University of Science and Technology, Trondheim, Norway
    BMC Neurol 7:23. 2007
    ..The purpose of this study was to investigate the temporal relationship between autonomic changes and pain activation in migraine and tension-type headache induced by stress in a model relevant for everyday office-work...
  16. ncbi request reprint Low-amplitude trapezius activity in work and leisure and the relation to shoulder and neck pain
    Paul Jarle Mork
    Norwegian University of Science and Technology, Norway
    J Appl Physiol 100:1142-9. 2006
    ..We speculate that different mechanisms of muscle pain causation, dependent and independent of motor activity pattern, coexist...
  17. doi request reprint Back posture and low back muscle activity in female computer workers: a field study
    Paul Jarle Mork
    Department of Industrial Economics and Technology Management, Norwegian University of Science and Technology, N 7491 Trondheim, Norway
    Clin Biomech (Bristol, Avon) 24:169-75. 2009
    ..This study aims to determine back posture and its influence on low back muscle activity in computer workers, and to investigate whether the work situation is associated with exacerbation of low back pain...
  18. pmc Noradrenaline and cortisol changes in response to low-grade cognitive stress differ in migraine and tension-type headache
    Rune Bang Leistad
    Department of Neuroscience, Norwegian University of Science and Technology, N 7489 Trondheim, Norway
    J Headache Pain 8:157-66. 2007
    ..The present study suggests that migraineurs and TTH patients cope differently with low-grade cognitive stress...
  19. ncbi request reprint Daytime trapezius muscle activity and shoulder-neck pain of service workers with work stress and low biomechanical exposure
    Kari Anne Holte
    Department of Industrial Economics and Technology Management, The Norwegian University of Science and Technology, Trondheim
    Am J Ind Med 41:393-405. 2002
    ..The study aims to look for an association between trapezius muscle activity and shoulder-neck pain in work situations characterized by work stress and low biomechanical exposure...
  20. ncbi request reprint EMG activity and pain development in fibromyalgia patients exposed to mental stress of long duration
    D Bansevicius
    Norwegian University of Science and Technology, Division of Organization and Work Science, Trondheim
    Scand J Rheumatol 30:92-8. 2001
    ..CONCLUSION: Stress-induced pain in fibromyalgia patients is not generally caused by muscle activity. The trapezius EMG response may be part of a general stress response that cause pain independently of motor activity in muscles...
  21. pmc The influence of contraction amplitude and firing history on spike-triggered averaged trapezius motor unit potentials
    C Westad
    Department of Industrial Economics and Technology Management, Norwegian University of Science and Technology, N 7491 Trondheim, Norway
    J Physiol 562:965-75. 2005
    ..The similar area of motor units at same SEMG amplitude may indicate that trapezius motor units recruited below 10% EMG(max) are of similar size and thus not organized according to the Henneman size principle...
  22. ncbi request reprint Stress-induced pain and muscle activity in patients with migraine and tension-type headache
    R B Leistad
    Department of Neuroscience, Norwegian University of Technology and Science and Department of Neurology and Clinical Neurophysiology, St Olavs Hospital, Trondheim, Norway
    Cephalalgia 26:64-73. 2006
    ..Surface-detectable muscular activation does not seem to be causal for pain during cognitive stress either in migraine or in TTH...
  23. ncbi request reprint Pain induced by low-grade stress in patients with fibromyalgia and chronic shoulder/neck pain, relation to surface electromyography
    K B Nilsen
    Norwegian University of Science and Technology, Department of Neurosciences, N 7489 Trondheim, Norway
    Eur J Pain 10:615-27. 2006
    ..Pain lasted longer during recovery in both FMS and SNP patients compared to healthy controls, possibly a result of disease-related sensitisation in pain pathways...
  24. doi request reprint A unilateral sympathetic blockade does not affect stress-related pain and muscle activity in patients with chronic musculoskeletal pain
    K B Nilsen
    Department of Neurosciences, Faculty of Medicine, Norwegian University of Science and Technology, Norway
    Scand J Rheumatol 37:53-61. 2008
    ..In the present study we wanted to determine whether sympathetic blockade could affect either the pain or the muscular activity experienced during mental stress in patients with chronic musculoskeletal pain...
  25. pmc Motor unit recruitment and derecruitment induced by brief increase in contraction amplitude of the human trapezius muscle
    C Westad
    Department of Industrial Economics and Technology Management, Norwegian University of Science and Technology, N 7491 Trondheim, Norway
    J Physiol 552:645-56. 2003
    ..The firing behaviour of trapezius motor units in these experiments may thus illustrate a mechanism and a control strategy to reduce fatigue of motor units with sustained activity patterns...
  26. ncbi request reprint Low-frequency oscillations (<0.3 Hz) in the electromyographic (EMG) activity of the human trapezius muscle during sleep
    R H Westgaard
    Norwegian University of Science and Technology, N 7491 Trondheim, Norway
    J Neurophysiol 88:1177-84. 2002
    ..The analysis of muscle activity patterns may provide an important new tool to study neural mechanisms in human sleep...
  27. ncbi request reprint Shoulder and neck complaints in customer relations: individual risk factors and perceived exposures at work
    O Vasseljen
    Institute of Industrial Economics and Technology Management, Norwegian University of Science and Technology, Trondheim
    Ergonomics 44:355-72. 2001
    ..Alternatively, the variables used to describe mechanical and psychosocial exposures in this study may have low specificity in characterizing work-related risk factors for service workers with customer relations...
  28. ncbi request reprint Firing patterns of low-threshold trapezius motor units in feedback-controlled contractions and vocational motor activities
    C Westad
    Department of Industrial Economics and Technology Management, Norwegian University of Science and Technology, N 7491 Trondheim, Norway
    Exp Brain Res 158:465-73. 2004
    ..We conclude that low-threshold trapezius motor units have similar, stable firing rates in sustained contractions, independent of task and recruitment threshold, but with a small increase for increasing contraction amplitude...
  29. ncbi request reprint Tension-type headache: pain, fatigue, tension, and EMG responses to mental activation
    D Bansevicius
    Division of Organization and Work Science, Norwegian University of Science and Technology (NTNU, Trondheim, Norway
    Headache 39:417-25. 1999
    ..The EMG response of the trapezius muscle to the test is discussed in comparison with similar responses observed in patients with other pain syndromes...
  30. ncbi request reprint The activity patterns of neck muscles in professional classical singing
    Viggo Pettersen
    Stavanger University College, School of Art Education, Stavanger, Norway
    J Voice 19:238-51. 2005
    ..The activity of all neck muscles was markedly elevated when singing in the highest pitch. There was no consistent task-based difference in EMG amplitude for the other singing tasks...