PMID: 9180671Jun 1, 1997Paper

Abnormal exercise electrocardiograms in master athletes after three months of deconditioning

Journal of the American Geriatrics Society
L I KatzelJ L Fleg

Abstract

To determine the effects of 3 months of voluntary deconditioning on cardiac function in master athletes. A prospective study. Research participants at the University of Maryland School of Medicine and Johns Hopkins Bayview Medical Center. Ten older (59 +/- 8 years, mean +/- SD), highly conditioned (maximal aerobic capacity VO2 max 50 +/- 5 mL/kg/min), aerobically trained athletes. Three months after the cessation of training, three of the 10 athletes had unexpected, new, markedly asymptomatic, ischemic-appearing, exercise-induced ST-segment depression on their maximal exercise tests. After retraining, the ST-segment changes disappeared in two of the subjects, but it persisted, although at a higher work load, in one of the athletes. In three master athletes, voluntary cardiopulmonary deconditioning was associated with the development of new, asymptomatic, exercise-induced ST-segment depression on exercise ECG. The mechanisms underlying these new ischemic-appearing ST-segment changes accompanying detraining and their clinical significance are not known and warrant further investigation.

References

Mar 1, 1969·Progress in Cardiovascular Diseases·R A Bruce, T R Hornsten
Jun 1, 1980·The American Journal of Cardiology·B F Waller, W C Roberts
Sep 1, 1994·Journal of Applied Physiology·J L FlegE G Lakatta
Jan 1, 1996·Journal of the American Geriatrics Society·P V Vaitkevicius, J L Fleg

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Citations

Jun 16, 2000·Journal of the American Geriatrics Society·S Begum, L I Katzel
Sep 24, 2015·Journal of Cardiopulmonary Rehabilitation and Prevention·Marc S MitchellGuy E J Faulkner
Oct 9, 2021·Annals of Physical and Rehabilitation Medicine·Bradley J PetekAaron L Baggish

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