A case-control study of trapezius muscle activity in office and manual workers with shoulder and neck pain and symptom-free controls.

@article{Vasseljen1995ACS,
  title={A case-control study of trapezius muscle activity in office and manual workers with shoulder and neck pain and symptom-free controls.},
  author={Ottar Vasseljen and Rolf Harald Westgaard},
  journal={International archives of occupational and environmental health},
  year={1995},
  volume={67 1},
  pages={11-8}
}
A case-control study with matched pairs was initiated to investigate the relationship between shoulder-neck complaints and activity in the upper trapezius muscle. The matching was done so that the physical demands from work (external exposure) were equal for both the case and the control. Each pair was also matched for gender, age, working hours, and employment time. Male (n = 18) and female workers (n = 78) employed in both manual and office work were included. Muscle activation levels and… CONTINUE READING

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