Premium
A MATCHED PAIRS COMPARISON OF CYCLE ERGOMETRY AND TREADMILL EXERCISE TESTING IN THE EVALUATION OF CORONARY HEART DISEASE
Author(s) -
CALVERT A. F.,
PATER G.,
PYE D.,
MANN J.,
CHALMERS D.,
AYRES B.
Publication year - 1987
Publication title -
australian and new zealand journal of medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.596
H-Index - 70
eISSN - 1445-5994
pISSN - 0004-8291
DOI - 10.1111/j.1445-5994.1987.tb00100.x
Subject(s) - medicine , coronary heart disease , treadmill , physical therapy , cardiology , bicycle ergometer , exercise tolerance test , coronary disease , heart function tests , heart rate , blood pressure
In 105 patient pairs, matched for sex, aged within a ten‐year range and with closely similar coronary disease, the sensitivity and specificity of treadmill testing using the Bruce Protocol was compared to cycle ergometry using the 100 kpm/min (16 W/min) increment protocol, and found to be similar. The parameters of use were ST segment depression (sensitivity of 52% for treadmill and 61% for cycle), test angina (65% and 61%), significant work impairment (66% and 68%) and impaired blood pressure response (31% and 20%). The sensitivity was increased (treadmill to 84%, cycle to 89%) if the four parameters were grouped, and abnormality in any one of them was regarded as a positive test. The equivalent severity of coronary disease resulted in more severe work impairment on the cycle than on the treadmill. The mean work level of the treadmill group was 80%, and of the cycle group, 61% of their respective, nomographically predicted, normal values. The difference was similar for the zero. sinale and multivessel disease aroum. This difference should be recognised when comparing the two techniques. (xust NZ J Med 1987; 17: 472–478).