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A comparison between computer-controlled and set work rate exercise based on target heart rateTwo methods are compared for observing the heart rate (HR), metabolic equivalents, and time in target HR zone (defined as the target HR + or - 5 bpm) during 20 min of exercise at a prescribed intensity of the maximum working capacity. In one method, called set-work rate exercise, the information from a graded exercise test is used to select a target HR and to calculate a corresponding constant work rate that should induce the desired HR. In the other method, the work rate is controlled by a computer algorithm to achieve and maintain a prescribed target HR. It is shown that computer-controlled exercise is an effective alternative to the traditional set work rate exercise, particularly when tight control of cardiovascular responses is necessary.
Document ID
19910066015
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Pratt, Wanda M.
(NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Siconolfi, Steven F.
(NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Webster, Laurie
(NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Hayes, Judith C.
(NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Mazzocca, Augustus D.
(NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Harris, Bernard A., Jr.
(NASA Johnson Space Center Houston, TX, United States)
Date Acquired
August 14, 2013
Publication Date
September 1, 1991
Publication Information
Publication: Aviation, Space, and Environmental Medicine
Volume: 62
ISSN: 0095-6562
Subject Category
Aerospace Medicine
Accession Number
91A50638
Distribution Limits
Public
Copyright
Other

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