[How to improve the appropriate application of stress test].
A brief self administered questionnaire (Veterans Specific Activity Questionnaire VSAQ) should be used to estimate exercise tolerance on the basis of symptoms during daily activities to individualize ramp rates on the treadmill, so that the test duration would be approximately 10 minutes in according with guidelines for exercise testing for correct determination of oxygen uptake. In a recent study the responses to the VSAQ and age were the strongest predictors of both measured and predicted exercise capacity. This approach allows to individualize ramp rates on the treadmill and appropriately targets the exercise test duration (8-12 minutes). Further studies are need for validating the role different questionnares in different populations, including women, patients with low grade of work activity and with diabetes.