Indian Journal of Occupational and Environmental Medicine   Official publication of Indian Association of  0ccupational  Health  
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 ORIGINAL ARTICLE
Year : 2022  |  Volume : 26  |  Issue : 4  |  Page : 225-229

The effect of sleep quality and mental fatigue on the learning rate of shift workers with fast shift work rotation


Department of Occupational Health Engineering, Faculty of Health, Isfahan University of Medical Sciences, Isfahan, Iran

Correspondence Address:
Dr. Ismail Shokrolahi
Department of Occupational Health Engineering, Faculty of Health, Isfahan University of Medical Sciences, Isfahan
Iran
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ijoem.ijoem_439_20

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Background: Modern industrial societies are always prone to errors and accidents due to complex devices, multitasking, and shift work jobs. Therefore, behavioral tests in learning and memory are necessary to evaluate employees' perceptions to examine the brain's information processing and the physiological and psychological aspects of memory disorders. Materials and Methods: In this study, the effect of fast shift rotation, sleep quality, and mental fatigue on individuals' learning and memory was investigated using a maze device. Participants were divided into two groups (regular daytime workers and shift workers). The quality of sleep was assessed using the Pittsburgh Sleep Quality Index (PSQI), and the rate of mental fatigue was evaluated using a checklist published by the Japan Industrial Safety and Health Association. Results: Learning time and the number of learning errors at the beginning and end of the morning shifts and night shifts had a significant relationship (P value <0.0001). However, there was no meaningful relationship between sleep quality and time and the number of learning errors in day workers and shift workers. Conclusion: The results indicated that although shift workers experience rapid shift rotation, they are still exposed to this circadian sleep change's side effects such as general physical fatigue, sensory-neurological fatigue, poor perceived sleep quality, daily dysfunction, difficulty in learning, and memory. They show a significant difference compared to people working on a regular workday.






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