Initial clinical evaluation of a wheelchair ergometer for diagnostic exercise testing : a technical note

The purpose of this initial study was to evaluate a new wheelchair ergometer (WCE) and exercise test protocol for the detection of coronary artery disease in men with lower limb disabilities. Forty-nine patients (63 +/- 9 yr) completed WCE tests without complications. Peak heart rate was 84 +/- 15%...

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Bibliographic Details
Published in:Bulletin of prosthetics research 1994-11, Vol.31 (4), p.317-325
Main Authors: LANGBEIN, W. E, MAKI, K. C, EDWARDS, L. C, HWANG, M. H, SIBLEY, P, FEHR, L
Format: Article
Language:English
Subjects:
Adult
Aged
Aged, 80 and over
Biological and medical sciences
Cardiovascular disease
Cardiovascular system
Coronary Angiography
Coronary Disease - complications
Coronary Disease - diagnosis
Coronary Disease - physiopathology
Disabled Persons
Ergonomics
Exercise
Exercise Test - methods
Handicapped people
Humans
Investigative techniques, diagnostic techniques (general aspects)
Male
Medical research
Medical sciences
Middle Aged
Orthopedic apparatus
Oxygen Consumption
Pathology. Cytology. Biochemistry. Spectrometry. Miscellaneous investigative techniques
Wheelchairs
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Summary:The purpose of this initial study was to evaluate a new wheelchair ergometer (WCE) and exercise test protocol for the detection of coronary artery disease in men with lower limb disabilities. Forty-nine patients (63 +/- 9 yr) completed WCE tests without complications. Peak heart rate was 84 +/- 15% (mean +/- SD) of age-predicted maximum and peak double product was 223 +/- 62 x 10(2). The specified target heart rate (> or = 80% age-predicted maximal) or a positive result was achieved in 76% of tests. Fourteen tests were rated positive, 21 as negative and 14 as nondiagnostic for exercise-induced ischemia. In 18 patients who underwent coronary angiography, the predictive value was 100% (10/10) for a positive, and 50% (2/4) for a negative WCE test result. These results suggest that WCE is a viable initial diagnostic option for some persons who cannot adequately perform treadmill or cycle ergometry exercise.
ISSN:0748-7711
0007-506X
1938-1352