Author Affiliations: Department of Anatomy and Cell Biology, Rappaport Faculty of Medicine, Technion–Israel Institute of Technology (Drs Narotzki and Reznick), and Department of Medicine D, Rambam Health Care Campus (Dr Levy), Haifa, Israel.
Beatty et al1 demonstrated that the 6-minute walk test (6MWT) was highly predictive of cardiovascular events in patients with stable coronary disease. Patients who walked shorter distances (≤419 m) had 4 times the rate of events as those who walked the longest distance (≥544 m) during 8 years of follow-up. This important observation adds to the reports about the overall good correlations between 6MWT distance and future cardiopulmonary morbidity and mortality.2
Narotzki B, Reznick AZ, Levy Y. Moderate Exercise for Improvement in 6-Minute Walk Test Performance in Stable Coronary Heart Disease. JAMA Intern Med. 2013;173(2):168-169. doi:10.1001/2013.jamainternmed.1077