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Related Experiment Videos

Intermittent claudication: an objective office-based assessment.

I R McPhail1, P C Spittell, S A Weston

  • 1Division of Cardiovascular Diseases and Internal Medicine, Mayo Clinic and Mayo Foundation, Rochester, Minnesota 55905, USA.

Journal of the American College of Cardiology
|April 13, 2001
PubMed
Summary
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Active pedal plantarflexion offers a safe and economical alternative to treadmill exercise for assessing lower extremity arterial occlusive disease. This noninvasive office-based test shows excellent correlation with traditional methods, reducing patient symptoms.

Area of Science:

  • Vascular Medicine
  • Noninvasive Diagnostic Techniques
  • Cardiovascular Health

Background:

  • Intermittent claudication is prevalent in elderly individuals, signaling increased cardiovascular risk.
  • Diagnosis and severity assessment of lower extremity arterial occlusive disease often require noninvasive vascular laboratory testing.
  • Traditional testing involves treadmill exercise and ankle-brachial systolic blood pressure indices in a formal setting.

Purpose of the Study:

  • To compare the efficacy of standard lower extremity vascular laboratory treadmill exercise with an office-based active pedal plantarflexion technique.
  • To evaluate the correlation and safety of active pedal plantarflexion versus treadmill exercise for assessing arterial occlusive disease.

Main Methods:

  • A prospective, randomized crossover study involving 50 patients with suspected intermittent claudication.

Related Experiment Videos

  • Patients underwent both lower extremity treadmill exercise testing and active pedal plantarflexion testing.
  • Supine ankle-brachial systolic blood pressure indices were measured pre- and post-exercise for both methods.

    • Main Results:

    • Excellent correlation (r = 0.95) was observed between postexercise ankle-brachial systolic blood pressure indices from both testing methods.
    • No significant differences in outcomes were found based on testing order or disease severity.
    • Active pedal plantarflexion resulted in zero instances of angina or dyspnea, compared to 22% with treadmill exercise.

    Conclusions:

    • Active pedal plantarflexion is a noninvasive, safe, objective, and economical method for assessing lower extremity arterial occlusive disease.
    • This office-based technique favorably compares with traditional treadmill exercise testing.
    • The active pedal plantarflexion test offers a more comfortable and symptom-free alternative for patients.