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Related Experiment Videos

Methods for estimating the proper length of a cane

R Kumar1, M C Roe, O U Scremin

  • 1Department of Physical Medicine and Rehabilitation, Veterans Affairs Medical Center, Los Angeles, CA 90073, USA.

Archives of Physical Medicine and Rehabilitation
|December 1, 1995
PubMed
Summary

The best cane length measurement is from the floor to the distal wrist crease, ensuring proper elbow flexion. This method, unlike floor-to-greater trochanter, provides optimal cane fit for users.

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Area of Science:

  • Biomechanics
  • Assistive Device Technology
  • Orthopedics

Background:

  • Proper cane length is crucial for user safety and mobility.
  • Existing measurement methods may not consistently achieve optimal elbow flexion.
  • A standardized, practical method is needed for accurate cane fitting.

Purpose of the Study:

  • To identify a practical cane length measurement technique.
  • To achieve a target elbow flexion angle between 20 and 30 degrees.
  • To compare two common cane measurement methods.

Main Methods:

  • Compared two cane length measurement methods: floor to greater trochanter (Method I) and floor to distal wrist crease (Method II).
  • Utilized adjustable canes and measured elbow angles in 52 healthy volunteers.

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  • Correlated cane length with individual height and arm length.

    • Main Results:

    • Method II (floor to distal wrist crease) resulted in an average elbow angle of 25.4 degrees, within the target range.
    • Method I (floor to greater trochanter) yielded a significantly higher average angle of 44.8 degrees.
    • 94.3% of participants achieved the desired 20-30 degree elbow flexion using Method II.

    Conclusions:

    • Measuring cane length from the floor to the distal wrist crease is the recommended practical method.
    • Established formulae based on height and arm length can also determine ideal cane length.
    • This method ensures optimal biomechanics and user comfort.