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Computerized Dynamic Posturography for Postural Control Assessment in Patients with Intermittent Claudication
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Postural control in hemodialysis patients.

Sunghoon Shin1, Hae Ryong Chung2, Peter J Fitschen3

  • 1Department of Biomedical Engineering, Kyung Hee Univeristy, Yongin, Republic of Korea.

Gait & Posture
|November 6, 2013
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Summary

Patients undergoing hemodialysis (dialysis) exhibit poorer standing balance and a greater dual task cost (DTC) when performing cognitive tasks, indicating increased fall risk.

Keywords:
Kidney diseaseRehabilitationStanding balance

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Area of Science:

  • Nephrology
  • Gerontology
  • Biomedical Engineering

Background:

  • Patients undergoing hemodialysis (HD) often experience comorbidities that may affect neurological function.
  • Postural control is crucial for daily activities and fall prevention.
  • Cognitive function can impact motor performance, particularly in vulnerable populations.

Purpose of the Study:

  • To compare standing postural control and dual task cost (DTC) between hemodialysis patients and healthy controls.
  • To investigate the effect of cognitive load on postural sway in individuals undergoing HD.
  • To assess the potential fall risk associated with impaired postural control in HD patients.

Main Methods:

  • 19 hemodialysis patients and 19 age, gender, and BMI-matched controls participated.
  • Participants performed quiet standing balance tasks and cognitive-motor dual tasks.
  • Postural control was measured using center of pressure (COP) trajectory parameters.

Main Results:

  • Hemodialysis patients demonstrated significantly greater postural sway compared to controls.
  • Hemodialysis patients exhibited a significantly higher dual task cost (DTC) than controls.
  • Cognitive task performance exacerbated postural instability in HD patients.

Conclusions:

  • Hemodialysis patients have impaired postural control, which worsens with cognitive demand.
  • This heightened dual task cost suggests an increased risk of falls in HD patients.
  • Further research is needed to identify causes and explore interventions like exercise to reduce DTC.