International Journal of Sports Medicine, Table of Contents Int J Sports Med 2017; 38(08): 646-647DOI: 10.1055/s-0043-112615 Letter to Editor-Response © Georg Thieme Verlag KG Stuttgart · New YorkEvaluation of Risk in Research must be Judged on Evidence, not Personal Opinion Authors Author Affiliations L. A. Jenkins 1 School of Sport and Exercise Sciences, University of Kent A. R. Mauger 1 School of Sport and Exercise Sciences, University of Kent J. G. Hopker 1 School of Sport and Exercise Sciences, University of Kent Recommend Article Abstract Buy Article(opens in new window) Full Text References References 1 Balady GJ, Arena R, Sietsema K, Myers J, Coke L, Fletcher GF, Forman D, Franklin B, Guazzi M, Gulati M, Keteyian SJ, Lavie CJ, Macko R, Mancini D, Milani RV. on behalf of the American Heart Association Exercise, Cardiac Rehabilitation, and Prevention Committee of the Council on Clinical Cardiology, Council on Epidemiology and Prevention, Council on Peripheral Vascular Disease and Interdisciplinary Council on Quality of Care and Outcomes Research. . Clinician’s Guide to Cardiopulmonary Exercise Testing in Adults: A Scientific Statement From the American Heart Association. Circulation 2010; 122: 191-225 2 Foster C, Coye RB, Crowe A, Dumit M, Lettau S, Young H, Volkert P. Comparison of free range and graded exercise testing. Med Sci Sports Exerc 1997; 29: 1521-1526 3 Jenkins LA, Mauger A, Fisher J, Hopker J. Reliability and Validity of a Self-paced Cardiopulmonary Exercise Test in Post-MI Patients. Int J Sports Med 2017; 38: 300-306 4 Kanthan A, Tan TC, Zecchin RP, Denniss AR. Early exercise stress testing is safe after primary percutaneous coronary intervention. Eur Heart J Acute Cardiovasc Care 2012; 1: 153-157 5 Keteyian SJ, Isaac D, Thadani U, Roy BA, Bensimhon DR, McKelvie R, Russell SD, Hellkamp AS, Kraus WE. HF-ACTION Investigators. Safety of symptom-limited cardiopulmonary exercise testing in patients with chronic heart failure due to severe left ventricular systolic dysfunction. Am Heart J 2009; 158: S72-S77 6 Mauger AR, Metcalfe AJ, Taylor L, Castle PC. Reply to “Discussion: Efficacy of the self-paced VO2max test to measure maximal oxygen uptake in treadmill running”. Appl Physiol Nutr Metab 2013; 39: 594-595 7 Roffi M, Wenaweser P, Windecker S, Mehta H, Eberli FR, Seiler C, Fleisch M, Garachemani A, Pedrazzini GB, Hess OM, Meier B. Early exercise after coronary stenting is safe. J Am Coll Cardiol. 2003; 42: 1569-1573