Stephen J.LurieMD, PhD, Senior EditorIndividualAuthorPhil B.FontanarosaMD, Executive Deputy EditorIndividualAuthor
To the Editor: Dr Gill and colleagues1 stated that few older persons are capable of achieving
maximal effort on a stress test, defined as a respiratory exchange ratio of
1.10 or greater, but it is unclear if the authors suggest that patients undergoing
stress testing should attempt to achieve maximal effort. It is also important
to differentiate between stress testing for screening purposes and maximal
exercise testing to determine functional capacity.
Petrella RJ. Exercise Stress Testing for Older Persons Starting an Exercise Program. JAMA. 2000;284(20):2591. doi:10.1001/jama.284.20.2591
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