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	Kwestionariusz Zdolności do Pracy Rozszerzony	Skala Wyczerpania Zmęczeniowego w Pracy i Regeneracji
Dziedzina	Zdrowie zawodowe	Zdrowie zawodowe
Rodzina	Process / pipeline	Process / pipeline
Rok powstania	2006	2006
Twórca	Ilmarinen, Tuomi, & Finnish Institute of Occupational Health	Winwood, Bakker, & Liss-Malone
Typ	Self-report	Self-report
Źródło pierwotne	Tuomi, K., Ilmarinen, J., Jahkola, A., Katajarinne, L., & Tulkki, A. (2006). Work Ability Index (2nd ed.). Finnish Institute of Occupational Health. ISBN: 978-952-5283-22-9	Winwood, P. C., Bakker, A. B., & Winwood, L. M. (2006). Do the effort–reward imbalance model and the demand control model measure occupational fatigue? A claims analysis of occupational health data. J Occup Environ Med, 48(11), 1112–1120.
Inne nazwy	WAI, Work Ability Index	OFER, Occupational Fatigue Scale
Pokrewne	3	3
Podsumowanie	The Work Ability Index (WAI) measures workers' capacity to perform their current job given their health status, job demands, and life circumstances. Developed by Finnish occupational health researchers, the WAI captures the dynamic relationship between personal capacity (physical fitness, mental health, skills) and job demands, identifying workers at risk of sickness absence, work disability, and early retirement. The WAI is a leading indicator for occupational health intervention, used in occupational health surveillance, rehabilitation, and aging worker management.	The Occupational Fatigue Exhaustion Recovery Scale (OFER) measures worker fatigue across three dimensions: acute fatigue (tiredness after the current work period), chronic fatigue (accumulated exhaustion over weeks or months), and inter-shift recovery (ability to recuperate between work shifts). Developed by Winwood and colleagues, the OFER distinguishes between short-term fatigue (recoverable) and long-term exhaustion (requiring intervention), making it essential for identifying workers at risk of injury, burnout, and occupational health decline in high-demand roles.