Long-term follow-up of patients undergoing standardized bicycle exercise stress testing : new recommendations for grading of exercise capacity are clinically relevant
Introduction: A new grading of exercise capacity during bicycle stress testing has been proposed in Sweden based on the new reference material (‘the Kalmar material’), which has not been validated. We aimed to examine the prognostic information of the new grading of exercise capacity during exercise stress testing. Methods: Data on all bicycle exercise tests performed at the Department of Clinical