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Related Experiment Videos

Movement-related variation in forces under compression stockings.

D Wertheim1, J Melhuish, R Williams

  • 1Department of Surgery, University of Wales College of Medicine, Cardiff, U.K.

European Journal of Vascular and Endovascular Surgery : the Official Journal of the European Society for Vascular Surgery
|April 16, 1999
PubMed
Summary

Compression therapy forces under stockings vary with foot movement. This study developed a system to measure these dynamic compression forces, aiding understanding of treatment efficacy for venous leg ulcers.

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Area of Science:

  • Biomedical Engineering
  • Vascular Medicine
  • Biomechanics

Background:

  • Compression therapy is a standard treatment for venous leg ulcers.
  • The effectiveness of compression therapy can vary significantly among patients.
  • Understanding the dynamic forces involved in compression therapy is crucial for optimizing treatment.

Purpose of the Study:

  • To develop and validate a system for measuring forces beneath compression stockings during limb movement.
  • To investigate how dorsiflexion, plantar flexion, and walking affect compression forces.
  • To enhance the understanding of compression therapy's mechanism of action.

Main Methods:

  • Three pressure sensors were applied to the medial aspect of the left leg in six healthy volunteers.

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  • Measurements were taken under class 2 compression stockings.
  • Data were collected during active dorsiflexion and plantar flexion, and during short walking trials.

    • Main Results:

    • Significant, position-dependent pressure changes were recorded during foot dorsiflexion and plantar flexion.
    • Walking also induced variable, position-dependent pressure fluctuations.
    • The developed system successfully captured dynamic force variations.

    Conclusions:

    • The developed system effectively measures forces under compression stockings during movement.
    • Foot and ankle movements demonstrably alter pressure distribution.
    • These findings provide insights into the variable efficacy of compression therapy and its mechanism of action.