This collection investigates the methodologies and practical applications of the Work Ability Index (WAI) as a primary metric for fostering productive aging in the global workforce. The symposium papers, curated from international experts, examine how occupational health interventions can extend the working life of aging populations. By analyzing the WAI framework, the contributors provide a structured approach to assessing physical and mental capacity in relation to workplace demands. The text serves as a synthesis of research aimed at aligning organizational policies with the physiological realities of an aging demographic.

Experts recognize this volume as a foundational reference for researchers and practitioners in the field of occupational medicine. Readers frequently note the technical density of the data, which provides a comprehensive look at the early international adoption of the WAI framework.