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Related Experiment Videos

[Comparison of Work Ability Index and cognitive function tests].

Hideki Suzuki1, Masaharu Kumashiro, Kayo Kusanoi

  • 1Department of Ergonomics, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyusyu city, Fukuoka 807-8555, Japan. h-szky@med.uoeh-u.ac.jp

Sangyo Eiseigaku Zasshi = Journal of Occupational Health
|June 30, 2004
PubMed
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Aging did not significantly impact overall work ability (Work Ability Index - WAI) in blue-collar workers. However, cognitive functions like memory and attention declined with age, showing no direct link to WAI in this group.

Area of Science:

  • Occupational Health
  • Gerontology
  • Cognitive Psychology

Background:

  • Aging workforce presents challenges for maintaining work ability and cognitive function.
  • Understanding the relationship between cognitive decline and work ability is crucial for employee well-being and productivity.
  • Blue-collar workers may have different aging-related work ability profiles compared to other professions.

Purpose of the Study:

  • To evaluate the impact of aging on cognitive function tests and Work Ability Index (WAI) scores.
  • To examine the relationship between cognitive function test results and work ability (WAI) in male factory employees.
  • To compare cognitive function and WAI between younger and older blue-collar workers.

Main Methods:

  • Study included 139 male steel plate factory employees, with valid data from 134 for WAI and 88 for cognitive tests.

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  • Participants were divided into younger (under 45) and middle-aged to elderly (45 and over) groups.
  • Cognitive function tests (Working Memory, Tracking, Sentence-to-sentence Comparison) and WAI were administered.

    • Main Results:

    • No significant difference in overall WAI scores between younger and older workers.
    • Older workers scored higher on WAI-2 (health) and WAI-7 (work সিঁড়ি), but lower on WAI-3 (functional capacity).
    • Older workers showed significantly lower scores in Working Memory, Tracking, and Sentence-to-sentence Comparison tests. No significant difference in WAI-3 based on cognitive function levels.

    Conclusions:

    • Aging did not negatively affect overall Work Ability Index in this cohort of blue-collar workers.
    • Cognitive functions, including memory and attention, declined with age in these workers.
    • The study suggests that age-related cognitive decline may not directly impact work ability in jobs where cognitive demands are lower.