Investigation of work ability index (WAI) and its relationship with maximal aerobic capacity (VO2max) among cement industry employer

Abstract

Introduction: Given the importance of adapting workers' physical and mental capabilities to their job needs, measuring their ability to work, maintaining, and upgrading, it has become an essential task. This study aimed to investigate WAI and its relationship with VO2max at one of the cement companies.
 Materials and Methods: This cross-sectional study was conducted among 130 employees of a cement company in Iran in 2018. For data collection, the WAI, Queens's test for maximum oxygen consumption, and a questionnaire designed by researchers (socio-demographic and work-related factors) were used. SPSS 21 was used to analyze the data. 
 Results: The results showed that the mean ± standard deviation of WAI in staff was 39.35 ± 4.64. Among the demographic and related variables, sports activity (P > 0.04) and sleep quality (P < 0.001), and work experience (P> 0.046) were significantly correlated with WAI. There was a significant positive correlation between the mean score of WAI and Vo2max (r = 0.21, p < 0.05). Regression modeling showed that Vo2max was the only significant predictor of WAI.
 Conclusion: According to the results of the study, to control and enhance the ability of the staff of the study, occupational intervention programs should focus on improving sleep quality and increased exercise. Also, considering the positive relationship of Vo2max to the WAI of the surveyed staff, it is recommended to select suitable employees in terms of aerobic capacity according to the workload of the job.

Study of Work Ability Index (WAI) and Its Association with Demographic Characteristics Among Firefighters

“…They concluded that there is a positive correlation between age and work ability index [18]. The study of Kavousian et al Also showed that with age increasing, the ability to work of individuals decreased, which is consistent with the results of our study [19]. Also, in the study of Bugajska et al, a negative correlation was observed between age and study subjects (both men and women) [33].…”

“…The present study showed that regular exercise during the week is associated with increased ability to do work. Kavousian et al concluded that the greatest ability to do work was related to a group of people who exercised on a daily basis [19]. Therefore, it is appropriate for managers of industries and organizations to design regular exercise programs and encourage employees to exercise in order to achieve higher levels of productivity of their employees.…”