An Association between Lower Extremity Function and Cognitive Frailty: A Sample Population from the KFACS Study.

Area of Science:

• Gerontology
• Neurology
• Biomarkers

Background:

• Cognitive frailty is a growing concern in aging populations, impacting physical function and overall health.
• Understanding the relationship between physical performance and cognitive decline is crucial for early intervention.

Purpose of the Study:

• To investigate the association between physical function tests and cognitive frailty in community-dwelling Korean older adults.
• To identify specific physical performance metrics that can predict cognitive frailty.

Main Methods:

• A cohort of 229 older adults was categorized into four groups: robust, pre-frailty, cognitive decline, and cognitive frailty.
• Physical function was assessed using the 6-minute Walk Test (6MWT), Timed Up and Go (TUG), and Five Times Sit-to-Stand (FTSS) tests.
• Receiver operating characteristic (ROC) curve analysis was employed to evaluate the predictive capacity of these tests.

Main Results:

• The 6MWT, TUG, and FTSS demonstrated potential in distinguishing individuals with cognitive frailty.
• The 6MWT showed higher sensitivity, while TUG and FTSS exhibited greater specificity in predicting cognitive frailty.
• Cognitive frailty status significantly predicted performance on TUG, FTSS, and 6MWT.

Conclusions:

• The 6MWT, TUG, and FTSS are valuable tools for assessing physical function in relation to cognitive frailty.
• These tests can serve as potential prognostic indicators, offering measurable cutoff points for identifying individuals at risk.
• Early identification through physical assessments may facilitate timely interventions for cognitive frailty.