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This study investigates the relationship between appendicular muscle mass, inter-limb imbalance, and mobility in older adults.

Effects of Appendicular Muscle Mass and Imbalance on Static and Dynamic Balance and Mobility Function: A Retrospective Observational Study

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Retrospective analysis shows functional imbalance affects balance and mobility in older adults, suggesting new indicators for decline.

This study investigates the relationship between appendicular muscle mass, inter-limb imbalance, and mobility in older adults.
Retrospective analysis of medical records from 38 outpatients aged 50 years or older
Assessment included body composition, grip strength, and short physical performance battery (SPPB)
Statistical analysis included independent t-tests, chi-square tests, and multiple linear regression
Balanced individuals had significantly faster gait speed than unbalanced individuals (1.18 vs. 0.92 m/s; p=0.0043)
Grip asymmetry showed a negative correlation with gait speed (r=-0.470)
SPPB score (r=0.704) and balance time (r=0.441) positively correlated with gait speed.

Lee et al. (2026) studied this question.

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