| Autor: |
Hiroichi Yamamoto, Tiankui Wang, Nobuyuki Miyai, Kazuhisa Miyashita, Noriko Ishii, Ikuharu Morioka, Yoshihiro Minami |
| Rok vydání: |
2005 |
| Předmět: |
|
| DOI: |
10.1016/s1572-347x(05)80034-5 |
| Popis: |
This study was undertaken to clarify the effects of exposure to cold environments on workers operating a forklift inside and outside a cold storage warehouse. A time-motion study was done for each worker from the start to the end of the work shift. Health conditions were checked by subjective symptoms, circulatory functions before work and at the end of the work shift, and by continuously monitoring blood pressure during the work, shift. Moreover, seasonal changes in the effects of work were examined. The mean total frequency of entering the warehouse was 52 times a day. The mean total time spent inside the warehouse was 3 h and 42 min. The maximum length of a stay was 60 min and 35 s. Many subjective symptoms were reported. Amongst them, nasal discharge and hand coldness and/or pain were reported by more than 60% of the subjects. There were large changes in blood pressure during work shifts. The longer the total time spent inside the warehouse, the greater the change in blood pressure. The plasma noradrenalin concentration was significantly higher at the end of the work shift. It increased significantly as the total time spent inside the warehouse increased. The changes in blood pressure in the warehouse increased with increasing plasma noradrenalin concentrations. The sublingual temperature significantly decreased at the end of the work shift. The effects of the work were greater in winter than in summer. This study shows that work management is one of the most important aspects in occupational health for workers in a cold storage facility. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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