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Baroreflex responses and LBNP tolerance following exercise trainingThe hypothesis that endurance exercise training designed to increase aerobic capacity results in reduced orthostatic tolerance due to alterations of blood-pressure controlling mechanisms was reexamined using a specially designed training in which tolerance to orthostasis and the primary mechanisms associated with the blood-pressure control could be measured before and after the increase in aerobic capacity. Results demonstrate that maximal oxygen uptake can be significantly elevated in individuals of average fit without reducing lower body negative pressure tolerance. The exercise training was found to cause a resting bradycardia, which had no effect on the cardiac vagal reflex response.
Document ID
19910052846
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Convertino, V. A.
(NASA John F. Kennedy Space Center Cocoa Beach, FL, United States)
Thompson, C. A.
(NASA John F. Kennedy Space Center Cocoa Beach, FL, United States)
Eckberg, D. L.
(NASA John F. Kennedy Space Center Cocoa Beach, FL, United States)
Fritsch, J. M.
(NASA John F. Kennedy Space Center Cocoa Beach, FL, United States)
Mack, G. W.
(NASA John F. Kennedy Space Center Cocoa Beach, FL, United States)
Nadel, E. R.
(NASA Kennedy Space Center; Bionetics Corp. Cocoa Beach, FL; USVA, Medical Center; Virginia, Medical College, Richmond; J.B. Pierce Foundation L, United States)
Date Acquired
August 15, 2013
Publication Date
February 1, 1990
Publication Information
Publication: Physiologist, Supplement
Volume: 33
ISSN: 0031-9376
Subject Category
Aerospace Medicine
Accession Number
91A37469
Distribution Limits
Public
Copyright
Other

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