Bioelectrical impedance analysis and physical function improved risk prediction for cardiac dysfunction in
Weichen Zhang1, Lu Yao1, Qin Zhu1
1Division of Nephrology, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China.
Frontiers in Physiology
|April 6, 2026
Summary
Bioelectrical impedance analysis (BIA) and physical function tests, including gait speed, help predict cardiac dysfunction in maintenance hemodialysis (MHD) patients. These methods offer practical tools for assessing cardiac risk beyond traditional biomarkers.
Area of Science:
- Nephrology and Cardiovascular Medicine
- Biomarkers and Diagnostic Tools
Background:
- Cardiovascular disease is a primary cause of mortality in maintenance hemodialysis (MHD) patients.
- Identifying reliable predictors of cardiac dysfunction is crucial for improving patient outcomes.
Purpose of the Study:
- To investigate the association between bioelectrical impedance analysis (BIA) parameters, physical function, and cardiac function in MHD patients.
- To identify predictors of cardiac dysfunction using BIA and physical function assessments.
Main Methods:
- A cross-sectional study involving 130 MHD patients.
- Bioelectrical impedance analysis (BIA) using the Body Composition Monitor.
- Assessment of physical function via handgrip strength and natural gait speed.
- Echocardiography to evaluate cardiac systolic and diastolic functions.
- Univariate and multivariable logistic regression analyses were performed.
Main Results:
- Natural gait speed and NT-proBNP were independent determinants of impaired systolic function (AUC = 0.854).
- Total body water and NT-proBNP were significant determinants of impaired diastolic function (AUC = 0.746).
- Combined BIA and physical function parameters demonstrated high predictive value for cardiac dysfunction.
Conclusions:
- Bioelectrical impedance analysis (BIA) and physical function parameters enhance risk stratification for cardiac dysfunction in MHD patients.
- These parameters serve as practical tools for screening cardiac risk in this population.
- Integrating BIA and physical function assessments can improve the management of cardiovascular risk in MHD patients.
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