Exploring the exercise intensity equivalent to the anaerobic threshold in patients with acute myocardial infarction based on the 6-minute walk test distance

Yuxuan Fan ^1,2 Xiaopeng Sun ³ Guihua Li ⁴ Xiaojing Wang ³ Qian Luo ^1,2 Lemin Wang ² YuQin Shen ^1,2 Zhiqing Fan ^3*

• ¹ School of Medicine, Tongji University, Shanghai, Shanghai Municipality, China
• ² Tongji Hospital Affiliated to Tongji University, Shanghai, China
• ³ Daqing Oilfield General Hospital, Daqing, China
• ⁴ Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning Province, China

Please find enclosed our manuscript entitled "Exploring the exercise intensity equivalent to the anaerobic threshold in patients with acute myocardial infarction based on the 6-minute walk test distance," which we request your to consider for publication as a Original Research in Frontiers in Cardiovascular Medicine.At present, with the gradual aging of the world, the management and prevention of cardiovascular disease in the elderly is receiving more and more attention, and cardiac rehabilitation is being vigorously promoted all over the world. However, CPET machines are very expensive and unaffordable for many pirmary units. This study is aimed at exploring a methodology that can be used to implement cardiac rehabilitation easily in the community for AMI patients without CPET conditions. This study aims to explore a convenient model to facilitate the development of cardiac rehabilitation in the primary community without CPET. It is aimed to determine the correlation between aerobic exercise intensity based on the 6-minute walk test (6MWT) and an anaerobic threshold (AT)-based equivalent in patients with acute myocardial infarction (AMI) to explore suitable interventions for AMI exercise rehabilitation. Our study found Aerobic exercise intensity in patients with AMI comparable to that in AT can be determined based on the 6MWD. Therefore, this study may provide a theoretical basis for the cardiac rehabilitation of patients with AMI in community hospitals without cardiopulmonary exercise test and responding to the needs of an ageing population. However, further confirmation in a larger population is still needed.We believe that our study makes a significant contribution to the primary cardiac rehabilitation and cardiovascular prevention that this paper will be of interest to the readership of your journal because this is the first exploration of a convenient rehabilitation model for AMI patients based on the 6-minute walk test.