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June 19, 2026Scientific ReportsOpen Access

Association between segmental and whole-body phase angle from bioelectrical impedance analysis and the physical function in community-dwelling older adults

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Authors

CACarmen Ayala-MartínezVMVerónica Mihaiescu-IonVPVeronica Perez-Cabezas

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Overview

Cross-sectional study assesses phase angle's association with physical function in community-dwelling older adults, highlighting implications for monitoring health.

Key Points

  • This research aims to explore how segmental and whole-body phase angle measurements relate to physical function in older adults.
  • Cross-sectional design involving 93 community-dwelling older adults aged ≥ 65 years
  • Used multifrequency bioelectrical impedance analysis to measure whole-body and segmental phase angles
  • Evaluated physical function using Short Physical Performance Battery, handgrip strength, gait speed, and lower-limb relative power
  • Lower-limb phase angle showed the strongest association with SPPB (adjusted β = 0.538; p < 0.001) and significant associations with LL-rPOW (adjusted β = 0.356; p < 0.001) and gait speed (adjusted β = 0.335; p = 0.002)
  • Whole-body phase angle was significantly associated with overall physical performance but lower-limb phase angle had numerically higher stability for lower-extremity outcomes
  • Upper-limb phase angle was significantly associated only with handgrip strength (adjusted β = 0.220; p = 0.008)

Cite This Study

Ayala-Martínez et al. (2026) studied this question.

synapsesocial.com/papers/6a34dd4965a5b0777af2d117https://doi.org/10.1038/s41598-026-44183-3
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