ASSESSING FUNCTIONAL CAPACITY IN HAEMODIALYSIS AND HAEMODIAFILTRATION PATIENTS USING THE 30-SECOND CHAIR TO STAND TEST: A CROSS-SECTINAL STUDY IN ANGELES CITY, PAMPANGA, PHILIPPINES

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Abstract Title *

ASSESSING FUNCTIONAL CAPACITY IN HAEMODIALYSIS AND HAEMODIAFILTRATION PATIENTS USING THE 30-SECOND CHAIR TO STAND TEST: A CROSS-SECTINAL STUDY IN ANGELES CITY, PAMPANGA, PHILIPPINES

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Co-author 1

Angelie Lorraine Pesebre-Ong angelpesebre@gmail.com Angeles University Foundation Medical Center Section of Adult Nephrology Angeles City Philippines *

Co-author 2

Ramon Jose Suarez doc.bibs@icloud.com Angeles University Foundation Medical Center Section of Adult Nephrology Angeles City Philippines -

Co-author 3

Marizel Catungal zelcatungal@gmail.com Angeles University Foundation Medical Center Section of Adult Nephrology Angeles City Philippines -

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Introduction

Physical function significantly influences quality of life in patients on kidney replacement therapy (KRT). The relative effects of haemodialysis (HD) and haemodiafiltration (HDF) [DC1] [DC2] on physical performance have not yet been thoroughly investigated.

Methods

A cross-sectional study was conducted in 90 prevalent HD patients on HD or HDF in two dialysis centers in Angeles City, Pampanga, Philippines. Adults aged ≥18 years on regular HD for at least 3 months were eligible. The 30s-CST was administered post-dialysis to evaluate lower limb strength and functional capacity. Demographic, clinical, and laboratory data were collected. Group comparisons and factor associations were analyzed using independent t-tests and linear regression.

Results

Of the 90 participants (mean age: 52 ± 14.6 years; 52.2% female), 60 underwent HD and 30 HDF. Mean 30s-CST repetitions were higher in the HD group (12.8 ± 6.05) versus the HDF group (11.07 ± 4.68), though not statistically significant (p = 0.1724). Age emerged as the sole significant predictor of 30s-CST scores in both HD (β = -0.20, p = 0.0001) and HDF (β = -0.18, p = 0.0034) cohorts. Regardless of modality, patients showed markedly reduced functional capacity compared to normative values.

Conclusion

Prevalent patients on HD have a markedly reduced functional capacity, with no significant difference between HD and HDF. Age remains the primary determinant of performance status. The 30s-CST is a feasible tool for baseline and longitudinal monitoring of functional status in dialysis patients and may inform individualized rehabilitation strategies. This work was previously presented in poster form at the 60th Australian and New Zealand Society of Nephrology, Perth, Australia (September 2025).”

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