Exercise Electrocardiogram Testing

Treadmill exercise testing of asymptomatic men and women without evidence of heart disease

“…Maximal aerobic capacity declines 8 to 10% per decade in sedentary men and women (27). In the present study, this decline was observed in the second, third, fourth, and sixth decade for men and in the third and fifth decade for women, a trend similar to that observed in other studies (27,28).…”

“…Functional capacity was higher in men than in women and tended to decrease with age for both genders, as also observed by others (27,28). Maximal aerobic capacity declines 8 to 10% per decade in sedentary men and women (27).…”

High-frequency QRS analysis compared to conventional ST-segment analysis in patients with chest pain and normal ECG referred for exercise tolerance test

“…Usually, previous conventional techniques for ECG detection of exercise-induced myocardial ischemia have relied on identification of repolarization abnormalities manifested as ST-segment changes in the 0.05-Hz to 100-Hz frequency band [27,28]. HFQRS analysis, in order to increase the diagnostic capabilities of exercise ECG, is based on detection of specific depolarization changes caused by ischemia.…”

Stress testing in patients with chronic kidney disease: The need for ancillary markers for effective risk stratification and prognosis

“…18 Few of the markers of adverse prognosis include high resting heart rate, low time to peak heart rate, chronotropic incompetence (defined as inability to achieved C85% age predicted maximal heart rate, low percent heart rate reserve, or a low chronotropic index), abnormal heart rate recovery (defined as difference in heart rate between peak exercise and 1 or 2 min later), abnormal functional capacity, and exerciseinduced hypotension. 18 Similarly, some of the above parameters have also been tested in patients undergoing pharmacological stress test including the heart rate response evaluated in this study and indices of chronotropic incompetence including heart rate reserve in those undergoing dobutamine stress test 19,20 (Table 2). Moreover, the EKG parameters of ischemic ST-T changes during stress or recovery and ventricular arrhythmia during stress testing have been shown to have prognostic value.…”

“…Moreover, the EKG parameters of ischemic ST-T changes during stress or recovery and ventricular arrhythmia during stress testing have been shown to have prognostic value. 18 Ancillary markers of high risk for patients undergoing SPECT included increased lung …”