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Pedal power measurement as a diagnostic tool for functional vascular problems
Jordi P D Kleinloog1, Martijn van Hooff1, Hans H C M Savelberg2
1Maastricht University, NUTRIM, School for Nutrition and Translation Research Maastricht, Department of Nutritional and Human Movement Sciences, Universiteitssingel 50, 6229 ER Maastricht, the Netherlands; Máxima Medical Centre, Department of Sports and Exercise, De Run 4600, 5500 MB Veldhoven, the Netherlands.
Clinical Biomechanics (Bristol, Avon)
|January 1, 2019
Summary
Pedal power measurement enhances the diagnosis of iliac artery flow limitations in cyclists. This method improves sensitivity without adding to patient investigation burden.
Area of Science:
- Vascular Medicine
- Sports Medicine
- Diagnostic Imaging
Background:
- Cyclists experience pain and power loss due to iliac artery flow limitations.
- Conventional diagnosis relies on the ankle-brachial blood pressure index.
- The diagnostic value of pedal power measurement for these limitations is under investigation.
Purpose of the Study:
- To evaluate the diagnostic value of pedal power measurement for iliac artery flow limitations.
- To determine the sensitivity and specificity of various pedal power variables.
- To assess the added value of pedal power measurement compared to the ankle-brachial blood pressure index.
Main Methods:
- 25 healthy individuals and 45 patients with unilateral arterial flow limitations were recruited.
- Echo-Doppler examination assessed iliac artery condition.
- Maximal cycle ergometer tests measured bilateral pedal power, with analysis using receiver operating characteristics curves.
Main Results:
- The mean power difference between legs at 95% maximal power demonstrated high predictive value (sensitivity 0.76, specificity 0.88).
- Combining pedal power measurement with the ankle-brachial blood pressure index yielded improved diagnostic accuracy (sensitivity 0.91, specificity 0.88).
Conclusions:
- Pedal power measurement significantly improves the sensitivity for diagnosing iliac artery flow limitations in cyclists.
- This diagnostic approach does not increase the clinical investigation burden for patients.
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