PRESS RELEASE
May
3, 2004
FOR IMMEDIATE RELEASE
ENDURANCE TRAINING IN POST-MENOPAUSAL WOMEN PRODUCES SPECIFIC CARDIAC CHANGE
Although exercise-related cardiac adaptations in males have been well-described,
there has been little research looking at the effects of long-term endurance
training on cardiac function in postmenopausal women. At the annual
meeting of the American Medical Society for Sports Medicine in Vancouver,
British Columbia, Magnus Hagmar, M.D. presented new research looking
at this issue. Using echocardiography and symptom-limited exercise
stress testing, twenty postmenopausal elite endurance athletes were
compared to nineteen age-matched inactive controls. In this comparison,
athletic females were able to exercise longer and to a higher workload
than their untrained counterparts. Echocardiography showed larger
cardiac volumes and stroke volume (volume of blood the heart pumps with
each stroke) in the athletic group. Unlike similar studies in
males, there was no difference in left ventricular volume or mass between
groups.
Dr. Hagmar concludes that this study is significant in that it shows
that while trained females definitely have increased exercise capacity
in relation to untrained peers, there are fewer differences of structural
cardiac adaptations. Increased exercise capacity seems to come,
in part, from increases in cardiac output related to increased stroke
volume. Dr. Hagmar is affiliated with the Department of Obstetrics
and Gynaecology at Karolinska Hospital in Stockholm, Sweeden, and is
a member of the American Medical Society for Sports Medicine.
The American Medical Society for Sports Medicine (AMSSM) was organized
in 1991by physicians who recognized the need for an organization within
the field of sports medicine that approached athletes, exercising individuals,
and teams comprehensively with consultative and continuous care of their
orthopedic, medical, nutritional, and psychosocial issues. Although
sports medicine concepts are often thought of in conjunction with professional
and elite athletes, these concepts apply to athletes of all levels including
grade school, high school, college and recreational athletes. AMSSM is comprised of over 800 Sports Medicine Physicians whose goal
is to provide a link between the rapidly expanding core of knowledge
related to sports medicine and its application to patients in a clinical
setting.
NOTE: For more information, please contact the AMSSM, 11639
Earnshaw, Overland Park, KS 66210, (913) 327-1415 or
office@amssm.org .
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