Age-Related Frailty: A Clinical Model for Geroscience?

Area of Science:

• Gerontology
• Geriatric Medicine
• Clinical Frailty

Background:

• Older adults often exhibit frailty, which is associated with both advanced age and the presence of multiple medical conditions (multimorbidity).
• The interplay between aging and comorbidity in the development of frailty is complex and often synergistic.
• Current clinical practice frequently encounters patients where differentiating the primary driver of frailty—aging versus disease—is challenging.

Purpose of the Study:

• To explore the distinction between age-related frailty and frailty stemming from comorbidity.
• To highlight the importance of differentiating these frailty origins for future geriatric care.
• To set the stage for distinct pathophysiological, diagnostic, prognostic, and therapeutic approaches.

Main Methods:

• Conceptual analysis of the relationship between aging, multimorbidity, and frailty.
• Review of clinical observations in geriatric practice.
• Consideration of emerging geroscience principles.

Main Results:

• Frailty is multifactorial, with both aging and comorbidity contributing significantly.
• Synergistic effects between aging and comorbidity are common in the development of frailty.
• A clear distinction between age-related and comorbidity-related frailty is often difficult to ascertain.

Conclusions:

• Differentiating the primary cause of frailty (aging vs. comorbidity) is clinically important.
• Future advancements in geroscience necessitate distinct approaches for age-related frailty and comorbidity-related frailty.
• Tailored strategies for physiopathology, diagnosis, prognosis, and treatment are anticipated for distinct frailty etiologies.