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Related Experiment Videos

Partial weight-bearing gait using conventional assistive devices.

James W Youdas1, Brian J Kotajarvi, Denny J Padgett

  • 1Department of Physical Medicine and Rehabilitation, Mayo Clinic, Rochester, MN, USA. Youdas.james@mayo.edu

Archives of Physical Medicine and Rehabilitation
|March 11, 2005
PubMed
Summary

Healthy subjects can achieve 50% lower extremity weight reduction with axillary and forearm crutches. Wheeled walkers and single-point canes did not meet the target for partial weight-bearing (PWB).

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Area of Science:

  • Biomechanics
  • Rehabilitation Engineering
  • Orthopedics

Background:

  • Assistive devices are crucial for managing lower extremity injuries.
  • Quantifying weight-bearing reduction is essential for effective rehabilitation.
  • Understanding the efficacy of different gait aids is important for clinical practice.

Purpose of the Study:

  • To evaluate the ability of healthy individuals to achieve a targeted 50% reduction in lower extremity weight-bearing.
  • To assess the effectiveness of various assistive devices in achieving partial weight-bearing (PWB).

Main Methods:

  • A case series study involving ten healthy participants.
  • Participants were trained to achieve 50% weight reduction using assistive devices and a bathroom scale.
  • Vertical ground reaction force was measured using forceplates during walking with axillary crutches, forearm crutches, a wheeled walker, and a single-point cane.

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Main Results:

  • Axillary crutches achieved a 50% weight reduction, and forearm crutches achieved 56%.
  • A wheeled walker resulted in 64% body weight bearing, exceeding the target.
  • A single-point cane resulted in 76% body weight bearing, significantly above the target.

Conclusions:

  • Training with a bathroom scale enables healthy subjects to achieve 50% PWB with axillary and forearm crutches.
  • Wheeled walkers and single-point canes are less effective for achieving precise PWB targets.
  • Findings highlight the importance of selecting appropriate assistive devices for targeted rehabilitation.