Exploring the link between occupationally relevant whole body vibration and headache and neck pain: is elevated muscle tension an intermediary factor?

Author:

Yung Marcus1ORCID,Milosavljevic Stephan2ORCID,Lang Angelica E3,Tennant Liana M4,Trask Catherine5

Affiliation:

1. Canadian Institute for Safety, Wellness, & Performance, Conestoga College Institute of Technology and Advanced Learning , Kitchener, N2G 4M4 Ontario , Canada

2. School of Rehabilitation Science, College of Medicine, University of Saskatchewan , Saskatoon, S7N 2Z4 Saskatchewan , Canada

3. Canadian Centre for Rural and Agricultural Health, College of Medicine, University of Saskatchewan , Saskatoon, S7N 2Z4 Saskatchewan , Canada

4. Department of Kinesiology and Health Sciences, Faculty of Health, University of Waterloo , Waterloo, N2L 3G1 Ontario , Canada

5. Division of Ergonomics, KTH Royal Institute of Technology , 10044 Stockholm , Sweden

Abstract

Abstract Whole body vibration (WBV) is linked to short- and longer-term adverse health outcomes, including cognitive impairment, stress and memory loss, loss of balance, reduced proprioception, visual and vestibular disturbances, gastrointestinal problems, and musculoskeletal disorders. Epidemiological evidence supports the link between WBV and headache and head discomfort, but few experimental studies have examined this relationship, particularly with increased muscle tension, as an intermediary. This study aimed to investigate the relationship between muscle tension and vibration intensity, between perceived neck pain and headache/head discomfort and vibration intensity, and between muscle tension and reported neck pain and headache symptoms from simulated WBV based on field measurements of all-terrain vehicle operation on farm terrain. We observed significantly higher electromyography amplitude in the High condition (equivalent to EU Directive’s Exposure Limit Value) compared to both Low (equivalent to EU Directive’s Exposure Action Value) and Control (quiet sitting) conditions at the left upper trapezius muscle but there were no significant time effects. Neck pain and headache/head discomfort significantly increased after both Low (91% increase from baseline) and High (154% increase from baseline) vibration conditions but there were no significant differences between conditions. Based on simple regression modeling, the relationship between muscle activity and neck pain or headache was very weak (R2 = 0–0.093). Given the possibility of multiple factors contributing to headache symptoms, future research should not only consider the role of muscle tension but also sensory conflict, excessive noise, biodynamic responses, and a combination of these factors.

Funder

University of Saskatchewan College of Medicine Research Award

Canada Research Chairs program

Saskatchewan Health Research Foundation Fellowship program

Publisher

Oxford University Press (OUP)

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