Objective: This study aimed to evaluate the correlation between aerobic exercise intensity based on the 6 min walk test (6MWT) and the anaerobic threshold (AT)-based equivalent in patients with acute myocardial infarction (AMI). The feasibility of using the 6MWT for exercise prescription in primary care settings was also investigated.

Methods: A retrospective analysis was conducted on data from AMI patients, including statistics on all values of the cardiopulmonary exercise test and 6MWT parameters.

Results: Regression analysis showed that the regression equation based on 6MWD exercise intensity (EI) could predict AT-based exercise intensity (EI). Moreover, EI correlated with EI in 91.9%-93.0% of patients' EI, with AMI equivalent to the EI model.

Conclusions: The findings suggest that the anaerobic threshold in AMI patients corresponds to 91.9%-93.0% of the distance covered during the 6MWT. Thus, the 6MWT is a feasible tool for developing exercise prescriptions in primary care hospitals.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11893601PMC
http://dx.doi.org/10.3389/fcvm.2025.1452802DOI Listing

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