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Work in artificial cold environments.

Yutaka Tochihara1

  • 1Department of Ergonomics, Faculty of Design, Kyushu University, Fukuoka, Japan. tochi@design.kyushu-u.ac.jp

Journal of Physiological Anthropology and Applied Human Science
|February 3, 2005
PubMed
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Working in cold stores, even for short periods, causes significant cold stress and performance decline. Night shifts pose higher hypothermia and accident risks, despite workers developing cold adaptations.

Area of Science:

  • Occupational physiology
  • Environmental health

Background:

  • Cold stores represent typical artificial cold environments.
  • Japanese cold stores often maintain temperatures below -20°C, posing significant occupational risks.

Purpose of the Study:

  • To review the physiological characteristics of work in cold stores.
  • To assess the impact of cold exposure on worker performance and safety.

Main Methods:

  • Field and experimental studies were conducted.
  • Physiological parameters and worker performance were monitored during cold store work.

Main Results:

  • Frequent, short-duration cold exposures led to significant cold stress and performance decrements, comparable to continuous exposure.

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  • Night shift work increased risks of hypothermia and accidents due to decreased rectal temperature and manual performance, despite higher peripheral skin temperature.
  • Workers exhibited adaptation to cold through repeated daily exposures.

    • Conclusions:

    • Intermittent work in cold stores induces substantial physiological strain.
    • Night work in cold environments presents heightened safety concerns.
    • Repeated cold exposure can lead to physiological adaptation in cold store workers.