Test-retest reliability of muscle vibration effects on postural sway

Authors Henri Kiers , Simon Brumagne , Jaap van Dieen , Prof. Dr. Luc Vanhees
Published in Gait and Posture
Publication date 2014
Research groups Lifestyle and Health
Type Article

Summary

The effect of alterations in the processing of proprioceptive signals, on postural control, has been studied using muscle vibration effects. However, reliability and agreement of muscle vibration have still to be addressed.This study aimed to assess intra- and interday reliability and agreement of vibration effects of lumbar paraspinal and triceps surae muscles in a non-selected sample of 20 subjects, standing on solid surface and on foam. We used mean position and velocity of Centre of Pressure (CoP), during and after vibration to quantify the effect of muscle vibration. We also calculated the ratio of vibration effects on the lumbar paraspinal and triceps surae muscles (proprioceptive weighting).Displacement of the CoP during vibration showed good reliability (ICCs. >. 0.6), and proprioceptive weighting of displacement fair to good reliability (0.52-0.73). Agreement measures were poor, with most CV's ranging between 18% and 36%. Change in CoP velocity appeared not to be reliable. Balance recovery, when based on CoP position and calculated a short period after cessation of vibration, showed good reliability. According to this study, displacement during vibration, proprioceptive weighting and selected recovery variables are the most reliable indicators of the response to muscle vibration.

researchcomponents.publicationcontent.personslist.publicationauthors

  • Henri Kiers | Researcher | Research group Lifestyle and Health
    Henri Kiers
    • Researcher
    • Research groups: Lifestyle and Health

Language English
Published in Gait and Posture
Year and volume 40 1
Page range 166-171

Henri Kiers

Henri Kiers | Researcher | Research group Lifestyle and Health

Henri Kiers

  • Researcher
  • Research group: Lifestyle and Health