Isolated Effects of Renal Failure, Anthropometric Indices, and Serum Total Iron-Binding Capacity as Determinants of Muscle Performance in Hemodialysis Patients
We quantified the isolated impact of end-stage renal disease (ESRD) on physical performance under contemporary hemodialysis treatment independent of comorbid diseases, characterized principal anthropometric components, and adjusted for their influence and compared associations of C-reactive protein...
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Published in | Journal of renal nutrition Vol. 26; no. 4; p. 245 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
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United States
01.07.2016
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Abstract | We quantified the isolated impact of end-stage renal disease (ESRD) on physical performance under contemporary hemodialysis treatment independent of comorbid diseases, characterized principal anthropometric components, and adjusted for their influence and compared associations of C-reactive protein (CRP), albumin, and serum total iron-binding capacity (TIBC) with muscle function.
A case-control cross-sectional study.
University medical hospital and outpatient hemodialysis units.
Ninety prevalent hemodialysis patients without important comorbidities and 140 controls.
Handgrip strength (HGS) and 10-repetition sit-to-stand time (STS-10).
Principal component analysis revealed 3 representative anthropometric measures to be included in explanatory models of muscle performance additional to body height: lean body mass, fat mass, and joint size. Controlling for these covariates, age, sex, and residual comorbidity, ESRD was associated with a modest 7.5% reduction in HGS (B = -2.57 kg; 95% confidence interval: -4.81 to -0.39; P = .005; model R(2) 0.74) and a relatively larger prolongation of 27% in STS-10 time (B = 4s; 95% confidence interval: 2.61 to 5.4; P < .001; model R(2) 0.53). Lean body mass and height significantly predicted both tests, fat mass, and wrist size predicted HGS. In the subgroup of dialysis patients, only TIBC showed a significant association with HGS independently from age, sex, wrist size, whereas CRP and albumin did not. STS-10 time was not associated with any of these biomarkers. Results remained stable in sensitivity analyses excluding patients with reported chronic regional motor difficulties and aches.
ESRD with contemporary hemodialysis therapy has a relatively modest negative comorbidity-free association with HGS and a larger effect on STS-10 lower extremity performance. Nonmodifiable anthropometric indices (body height and for HGS wrist size) have a significant independent impact and should be consistently adjusted for in future studies. In low-comorbidity dialysis patients, TIBC is a superior predictor of HGS compared with albumin and CRP. |
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AbstractList | We quantified the isolated impact of end-stage renal disease (ESRD) on physical performance under contemporary hemodialysis treatment independent of comorbid diseases, characterized principal anthropometric components, and adjusted for their influence and compared associations of C-reactive protein (CRP), albumin, and serum total iron-binding capacity (TIBC) with muscle function.
A case-control cross-sectional study.
University medical hospital and outpatient hemodialysis units.
Ninety prevalent hemodialysis patients without important comorbidities and 140 controls.
Handgrip strength (HGS) and 10-repetition sit-to-stand time (STS-10).
Principal component analysis revealed 3 representative anthropometric measures to be included in explanatory models of muscle performance additional to body height: lean body mass, fat mass, and joint size. Controlling for these covariates, age, sex, and residual comorbidity, ESRD was associated with a modest 7.5% reduction in HGS (B = -2.57 kg; 95% confidence interval: -4.81 to -0.39; P = .005; model R(2) 0.74) and a relatively larger prolongation of 27% in STS-10 time (B = 4s; 95% confidence interval: 2.61 to 5.4; P < .001; model R(2) 0.53). Lean body mass and height significantly predicted both tests, fat mass, and wrist size predicted HGS. In the subgroup of dialysis patients, only TIBC showed a significant association with HGS independently from age, sex, wrist size, whereas CRP and albumin did not. STS-10 time was not associated with any of these biomarkers. Results remained stable in sensitivity analyses excluding patients with reported chronic regional motor difficulties and aches.
ESRD with contemporary hemodialysis therapy has a relatively modest negative comorbidity-free association with HGS and a larger effect on STS-10 lower extremity performance. Nonmodifiable anthropometric indices (body height and for HGS wrist size) have a significant independent impact and should be consistently adjusted for in future studies. In low-comorbidity dialysis patients, TIBC is a superior predictor of HGS compared with albumin and CRP. |
Author | Vivoda, Tjaša Pajek, Jernej Bučar Pajek, Maja Svilan, Katarina Škoberne, Andrej |
Author_xml | – sequence: 1 givenname: Maja surname: Bučar Pajek fullname: Bučar Pajek, Maja organization: Faculty of Sport, University of Ljubljana, Ljubljana, Slovenia – sequence: 2 givenname: Katarina surname: Svilan fullname: Svilan, Katarina organization: Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia – sequence: 3 givenname: Tjaša surname: Vivoda fullname: Vivoda, Tjaša organization: Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia – sequence: 4 givenname: Andrej surname: Škoberne fullname: Škoberne, Andrej organization: Department of Nephrology, University Medical Centre Ljubljana, Ljubljana, Slovenia – sequence: 5 givenname: Jernej surname: Pajek fullname: Pajek, Jernej email: Jernej.pajek@mf.uni-lj.si organization: Department of Nephrology, University Medical Centre Ljubljana, Ljubljana, Slovenia. Electronic address: Jernej.pajek@mf.uni-lj.si |
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Copyright | Copyright © 2016 National Kidney Foundation, Inc. Published by Elsevier Inc. All rights reserved. |
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SubjectTerms | Adiposity Adult Aged Anthropometry Biomarkers - blood Body Height Body Mass Index C-Reactive Protein - metabolism Case-Control Studies Cross-Sectional Studies Female Hand Strength Humans Iron - blood Male Middle Aged Muscle, Skeletal - physiology Principal Component Analysis Renal Dialysis Renal Insufficiency - blood Renal Insufficiency - diagnosis Sensitivity and Specificity Serum Albumin - metabolism Wrist |
Title | Isolated Effects of Renal Failure, Anthropometric Indices, and Serum Total Iron-Binding Capacity as Determinants of Muscle Performance in Hemodialysis Patients |
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