Self-Diagnosis Criteria for Frailty in Older Adults
First, unintentional weight loss—specifically, a decline of 4–5 kg per year—without deliberate dieting or lifestyle changes.
Second, monitoring handgrip strength. When grip strength falls below 22 kg in men or below 14 kg in women, it may indicate pre-frailty.

Third, gait speed. While healthy individuals can readily adjust walking pace and rhythm, older adults exhibiting a walking speed of less than 39 m/min (men) or less than 36 m/min (women) may display early signs of frailty.
Fourth, subjective fatigue and reduced physical endurance.

The presence of just one or two of the above criteria suggests early frailty, warranting timely monitoring, medical evaluation, and comprehensive assessment. Appropriate preventive interventions should be implemented according to the severity of frailty, along with enhanced self-care to delay progression. Numerous studies have demonstrated a strong association between frailty severity and mortality in older adults—the more rapidly frailty progresses, the higher the mortality risk.