Exercise time: a possible source of misleading results during long-term pharmacological studies by multiple stress testings in coronary artery disease.

The assessment of chronic pharmacological treatment of stable angina requires serial exercise stress testings. It is well known that exercise tolerance can be improved by the training effect of performing repeated testings. Our study investigated the values of heart rate, systolic blood pressure, rate-pressure product, and duration of exercise at 0.

Atenolol and/or nifedipine in effort angina: which is the treatment of choice for exercise coronary protection?

The authors performed a long-term, double-blind, crossover, randomized study on the effects of two drugs (atenolol, 100 mg/day, or nifedipine, 10 mg t.i.d.