Intrinsic capacity: an under-researched concept in geriatrics

Area of Science:

• Geriatrics and Gerontology
• Public Health
• Healthy Aging Research

Background:

• The World Health Organisation (WHO) introduced intrinsic capacity (IC) in 2015 as a public health model for healthy aging.
• IC represents an individual's physical and mental capacities, aiming for a positive approach to older adult health and well-being.

Purpose of the Study:

• To critically evaluate the added value of the intrinsic capacity (IC) concept in geriatrics.
• To identify and discuss challenges in the conceptualization, measurement, and application of IC.
• To highlight the need for validation and evidence of IC's feasibility in clinical practice.

Main Methods:

• Conceptual analysis and critical discussion of the intrinsic capacity (IC) framework.
• Review of existing operationalizations and their impact on research.
• Argument for further validation and practical assessment of IC.

Main Results:

• Current evidence for IC improving older adult care is insufficient.
• Existing operationalizations of IC cause confusion and research redundancy.
• The clinical feasibility and acceptance of IC require independent validation.

Conclusions:

• The concept of intrinsic capacity (IC) requires clarification and validation.
• Further research is needed to establish IC's practical utility and acceptance in geriatric care.
• Addressing conceptual and measurement issues is crucial for advancing healthy aging initiatives.