[Purpose] The purpose of this study was to examine the correlation of age, work
experience, cognition, and work ability in older employees working in heavy industry.
[Subjects and Methods] The study was conducted using 100 subjects who were over 55 years
old and worked in heavy industry. To obtain data, we first had the subjects complete the
MoCA-K test and Work Ability Index (WAI). The data were then analyzed by frequency and
correlation using statistical software (SPSS 21.0). [Results] Through this study, we
discovered a significant positive correlation between WAI and MoCA-K, age, and work
experience. [Conclusion] This study revealed that work ability in older employees
increases not with the number of years worked but with the enhancement of cognitive
ability. Special management that focuses on cognition is therefore required for senior
employees working in the field of heavy industry.