Introduction. Two great changes in developed countries are taking place: populations are ageing and becoming increasingly\r\noverweight. Combination of these factors with shift work is a risk factor for work ability and mental workload that are dynamic\r\nprocesses which change greatly throughout an individual�s work life. The aim of this study was to investigate mental workload and\r\nwork ability in textile workers and to identify factors which affect work ability and mental workload. Methods. This cross-sectional\r\nstudy was carried out among 194 male workers in textile industry. Employees based on their job group and work conditions have\r\nbeen divided into 6 categories. They completed work ability index and mental workload questionnaires during three work shifts.\r\nBody mass index (BMI) and demographic details were recorded. Results. All of the participants rated their work ability as moderate\r\nwith high mental workload. The mean WAI and mental workload in age group were significant. The mean BMI was 25.5 kg/m2\r\n(standard deviation 4.1) and the mean age was 40.22 years. There was a statistically significant correlation between work ability\r\nindex and shift work. Conclusions. Unlike the previous study, a decrease point in WAI started in early age that may be due to lifestyle\r\nwork and another psychological factor; on the other hand, NASA-TLX revealed high score in six subscales that can be another\r\nreason for lowWAI.
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