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Assessing intrinsic capacity in older adults: A concept analysis
Ilana Logvinov1, Donna Felber Neff1
1University of Central Florida, Orlando, FL, USA.
Geriatric Nursing (New York, N.Y.)
|January 20, 2026
Summary
Intrinsic capacity (IC) is a dynamic, multidimensional concept crucial for predicting health outcomes in older adults. Understanding its components aids in proactive health management and preventing frailty.
Area of Science:
- Gerontology
- Nursing Science
- Health Outcomes Research
Background:
- Intrinsic Capacity (IC) is a complex concept influencing health outcomes, particularly in aging populations.
- Existing definitions lack operational clarity for practical application in nursing.
- A precise definition is needed to guide interventions and predict health trajectories.
Purpose of the Study:
- To analyze the concept of Intrinsic Capacity (IC).
- To develop an operational definition of IC suitable for nursing practice.
- To establish a framework for understanding and measuring IC in clinical settings.
Main Methods:
- Concept evaluation using Walker and Avant's eight-step guideline.
- Systematic literature search across CINAHL, MEDLINE, PubMed, Social Gerontology, and APA PsychInfo databases.
- Analysis of 25 original research publications from nursing, gerontology, and nutrition (2008-2024).
Main Results:
- IC antecedents identified: personal characteristics, family history, genetic predisposition.
- Defining attributes of IC: dynamic, multidimensional (vitality, locomotion, cognition, psychological, sensory), encompassing physical and mental capacities.
- Changes in IC are linked to frailty and adverse health outcomes.
Conclusions:
- An operational definition of Intrinsic Capacity (IC) is essential for predicting health outcomes in older adults.
- Continuous monitoring of IC across its interconnected domains is recommended.
- Findings are supported by Rogers' client-centered theory, highlighting the holistic nature of IC.
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