Exploring the exercise intensity equivalent to the anaerobic threshold in patients with acute myocardial infarction based on the 6-minute walk test distance - Fan, Yuxuan; Sun, Xiaopeng; Li, Guihua; Wang, Xiaojing; Luo, Qian; Wang, Lemin; Shen, Yuqin; Fan, Zhiqing (Frontiers in Cardiovascular Medicine, 2025)