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To assess the effectiveness of phase angle derived from bioelectrical impedance analysis as a screening tool for pre-frailty in older adults.

April 22, 2026GeriatricsOpen Access

Screening for Pre-Frailty Using Phase Angle Derived from Bioelectrical Impedance Analysis in Community-Dwelling Older Adults

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To assess the effectiveness of phase angle derived from bioelectrical impedance analysis as a screening tool for pre-frailty in older adults.
Conducted a cross-sectional study with 171 community-dwelling older adults in Japan.
Measured phase angle at 50 kHz using bioelectrical impedance analysis and analyzed associations with physical and cognitive functions.
Classified participants based on Kihon Checklist scores into robust and pre-frail/frail categories.
Phase angle significantly correlates with various physical function measures, including grip strength and maximum walking speed.
In women, phase angle is independently associated with pre-frailty, with an odds ratio of 2.38.
ROC analysis demonstrated a modest discriminative ability for pre-frailty screening with an area under the curve of 0.65.

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Cross-sectional study evaluates phase angle for pre-frailty screening in older adults, implying its potential usefulness.

Hoshi et al. (2026) studied this question.

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