Assessing Cold-Induced Sensory Changes

The examinations took place in Oslo, Norway, in 1994 and 2016/2017. The 2016–2017 study was conducted during the cool season from September 2016 to March 2017. In 1994, the workers were tested with a test battery comprising the Grooved Pegboard test (Lafayette Instrument), a cold challenge photoplethysmography test (PPG) and vibrometry for testing sensory-neural thresholds (Aarhus et al. 2018 (link), 2019 (link)). The subjects also underwent a clinical examination and an interview that included assessment with the Stockholm Workshop Scale. The same procedure was repeated in the follow-up study, but a tremor test and blood samples were added.

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Bast-Pettersen R., Nordby K.C., Wastensson G, & Aarhus L. (2021). Tremor measurements in a 22-year cohort study of workers exposed to hand-held vibrating tools. International Archives of Occupational and Environmental Health, 94(5), 1049-1059.

Publication 2021

Grooved Pegboard test

Blood Clinical examination Cold Neural Photoplethysmography Tremor Workers

Corresponding Organization : National Institute of Occupational Health

Other organizations : University of Gothenburg

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Variable analysis

independent variables

Year (1994 and 2016/2017)

dependent variables

Performance on Grooved Pegboard test
Results of cold challenge photoplethysmography (PPG) test
Sensory-neural thresholds measured by vibrometry
Results of tremor test (added in the 2016-2017 study)
Blood samples (added in the 2016-2017 study)

control variables

Location (Oslo, Norway)
Season (cool season from September 2016 to March 2017 for the 2016-2017 study)
Clinical examination and interview including the Stockholm Workshop Scale (conducted in both studies)

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