文章基本信息

标题：Metabolic Equivalents for Post-Myocardial Infarction Patients during a Graded Treadmill Walking Test
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作者：Steve Meadows ; Steve Meadows ; Kate Woolf May 等
期刊名称：Journal of exercise physiology online
印刷版ISSN：1097-9751
出版年度：2013
卷号：16
期号：2
页码：60-69
语种：English
出版社：American Society of Exercise Physiologists
摘要：Meadows S, Woolf-May K, Kearney E. Metabolic Equivalents For Post-Myocardial Infarction Patients during a Graded Treadmill Walking Test. JEPonline 2013;16(2):60-69. The current compendium regarding resting metabolic equivalents (METs) is based on 1 MET, which is defined as an oxygen uptake (VO2) value of 3.5 mL·kg-1 ·min-1 to understand energy expenditure, aerobic capacity, and exercise intensity in cardiac populations. Yet, a field test has indicated it is not sufficiently accurate and may lend itself to implications that are potentially hazardous. The purpose of this study was to determine METs in post-MI males during a controlled graded treadmill walking test (GTWT) using a comparative controlled study design. Seventeen male post-myocardial infarction (MI) subjects (mean ± SD, 63.0 ± 8.5, range 48 to 77 yrs) and 17 healthy male controls (51.9 ± 7.7, range 41 to 66 yrs) participated as subjects in this study. All subjects performed a GTWT at speeds 2.0 to 4.4 m·hr -1 . Throughout the testing, the subjects’ VO2, heart rate, and rating of perceived exertion (RPE) were measured. Analysis comparing lines of regression showed that the METs were significantly higher (P<0.05) for post-MIs vs. the controls. METs differed significantly for post-MIs vs. current compendium METs (P<0.01), and controls vs. current compendium METs (P<0.01). Given that both post-MIs and controls showed significantly higher METs vs. the current compendium values during a GTWT, these findings bring into question the appropriateness of the standard use of the current METs in this context.
关键词：Cardiac Rehabilitation;METs;Exercise Prescription