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Related Experiment Videos

Comparison of treadmill exercise testing protocols for wheelchair users

G H Hartung1, D A Lally, R J Blancq

  • 1Pacific Basin Rehabilitation Research and Training Center, University of Hawaii at Manoa, Honolulu 96822.

European Journal of Applied Physiology and Occupational Physiology
|January 1, 1993
PubMed
Summary

Exercise testing for individuals with spinal cord injury (SCI) is crucial for assessing cardiorespiratory fitness. An incremental treadmill protocol combining speed and grade increases offers the most reliable method for evaluating exercise capacity in wheelchair users.

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Area of Science:

  • Cardiology
  • Sports Medicine
  • Rehabilitation Medicine

Background:

  • Individuals with spinal cord injury (SCI) face increased risks of cardiovascular diseases due to reduced mobility.
  • Standardized exercise testing is needed to accurately assess the cardiorespiratory fitness of wheelchair users.
  • Existing protocols require evaluation for safety, efficacy, and reliability in this population.

Purpose of the Study:

  • To compare the effectiveness and reliability of three different wheelchair treadmill exercise protocols.
  • To identify the optimal protocol for assessing maximal exercise response in individuals with paraplegia.
  • To ensure safe and efficient evaluation of exercise capacity in wheelchair users.

Main Methods:

  • Seven men with paraplegia (five SCI, two post-polio) participated in the study.

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  • Three incremental treadmill protocols were tested: constant speed with increasing grade (G), increasing speed with constant grade (S), and combined increasing speed and grade (C).
  • Each subject completed each protocol multiple times to assess reliability, with two-minute stages used throughout.

    • Main Results:

    • No significant differences in peak oxygen uptake (VO2max), ventilation, or heart rate were observed across protocols.
    • Protocol C (combined speed and grade increase) demonstrated the highest reliability coefficients for VO2max (0.95-0.98).
    • Protocol S (constant grade) yielded the lowest reliability, while Protocol G showed intermediate results.

    Conclusions:

    • An incremental treadmill protocol that increases both speed and grade (similar to Protocol C) is recommended for evaluating exercise capacity in wheelchair users.
    • This protocol provides reliable and maximal exercise responses, aiding in the assessment of cardiorespiratory fitness in individuals with SCI.
    • Optimized exercise testing protocols are essential for managing the health risks associated with SCI.