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Factors Affecting Renal Clearance: Renal Impairment01:17

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Renal dysfunction significantly impairs the renal clearance of drugs, leading to potential complications in drug therapy. Renal failure, which can be caused by various factors, poses a significant challenge in the elimination of drugs from the body.
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Correlates of Physical Functioning and Performance Across the Spectrum of Kidney Function.

E Segura-Ortí1, P L Gordon2, J W Doyle3

  • 11 Universidad CEU Cardenal Herrera, Valencia, Spain.

Clinical Nursing Research
|January 25, 2017
PubMed
Summary

Early-stage chronic kidney disease (CKD) patients exhibit low physical activity and muscle size, similar to those on hemodialysis. Interventions targeting muscle mass and energy expenditure may improve physical function in CKD.

Keywords:
chronic kidney diseasehealth-related quality of lifehemodialysisphysical activity

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Area of Science:

  • Nephrology
  • Exercise Physiology
  • Geriatrics

Background:

  • Patients on hemodialysis often experience poor physical functioning, low physical activity, and muscle atrophy.
  • These physical impairments are significant concerns impacting quality of life and clinical outcomes.

Purpose of the Study:

  • To investigate the presence and severity of physical activity limitations and muscle atrophy in earlier stages of chronic kidney disease (CKD).
  • To compare physical functioning, activity levels, and muscle characteristics across different stages of CKD, including no CKD, stages 3-4 CKD, and hemodialysis.

Main Methods:

  • Adult participants were categorized into three groups: no CKD, stages 3-4 CKD, and hemodialysis.
  • Key outcomes assessed included physical activity levels, muscle size (area), thigh muscle strength, physical performance tests, and self-reported physical function.

Main Results:

  • Patients with stages 3-4 CKD demonstrated intermediate muscle area compared to healthy controls and hemodialysis patients.
  • Despite intermediate muscle size, CKD patients exhibited low physical activity levels comparable to the hemodialysis group.
  • Both physical activity and muscle size were significantly correlated with all measured physical function outcomes.

Conclusions:

  • Physical activity and muscle size, rather than kidney function itself, are key determinants of physical function in CKD.
  • Interventions focused on enhancing muscle mass and increasing energy expenditure show promise for improving the physical function of individuals with chronic kidney disease.