J Physiol (Paris)
March 1980
The aim of the study was to test the hypothesis of a relationship between the tolerance to shift-work and the amplitude of the oral temperature circadian rhythm. Forty eight shift-workers (Rhône-Alpes Region) volunteered for this chronophysiological investigation: a) 23 steel-industry workers (SI); shift-duration: 7 days (weekly rotation); b) 25 chemical-industry workers (CI); shift-duration 2 days. The subjects' ages were roughly similar with regard to groups (SI and CI) as well as sub-groups (good and poor tolerance of shift-work).
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