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Initial clinical evaluation of a wheelchair ergometer for diagnostic exercise testing: a technical note
W E Langbein1, K C Maki, L C Edwards
1Rehabilitation Research and Development Center, Edward Hines Jr. VA Hospital, Hines, IL 60141.
Journal of Rehabilitation Research and Development
|November 1, 1994
Summary
This study shows a wheelchair ergometer (WCE) effectively detects coronary artery disease in men with lower limb disabilities. WCE offers a viable diagnostic option when treadmill or cycle tests are not feasible.
Area of Science:
- Cardiology
- Exercise Physiology
- Rehabilitation Medicine
Background:
- Coronary artery disease (CAD) diagnosis typically relies on exercise stress tests.
- Patients with lower limb disabilities often cannot perform standard treadmill or cycle ergometry.
- Alternative diagnostic methods are needed for this population.
Purpose of the Study:
- To evaluate a novel wheelchair ergometer (WCE) and exercise test protocol.
- To assess the WCE's efficacy in detecting coronary artery disease (CAD).
- To determine feasibility in men with lower limb disabilities.
Main Methods:
- Forty-nine male patients (mean age 63 years) with lower limb disabilities underwent WCE testing.
- Exercise test protocol aimed for target heart rate or positive results.
- Coronary angiography was performed in 18 patients for validation.
Main Results:
- WCE tests were completed without complications.
- 76% of tests achieved target heart rate or positive results.
- Predictive value for positive WCE tests was 100% (10/10); for negative tests, 50% (2/4).
Conclusions:
- Wheelchair ergometry (WCE) is a viable initial diagnostic tool for CAD.
- WCE provides a safe and effective alternative for individuals unable to use standard exercise tests.
- Further research can optimize WCE protocols for broader clinical application.