Age, physical activity patterns, estrogen levels and central circulatory responses of postmenopausal women to acute submaximal exercise

UNCG Author/Contributor (non-UNCG co-authors, if there are any, appear on document)
Kathleen M. Morocco (Creator)
The University of North Carolina at Greensboro (UNCG )
Web Site:
Diane Spitler

Abstract: The purpose of this study was to determine the relationships between age, physical activity patterns, estrogen levels, estrogen supplement and central circulatory responses of postmenopausal women to acute submaximal exercise. In addition, the relative influence of these four variables on central circulatory responses to acute submaximal exercise in postmenopausal women was investigated. Nineteen postmenopausal women, ages 44-63 years, participated in the study. Four subjects were taking estrogen supplement. A physical activity questionnaire was administered to survey past and present occupational and spare-time physical activities. Subjects completed a bicycle ergometer stress test to maximal exertion and on a subsequent day, a 30-minute submaximal bicycle ergometer test at 55% of their maximal aerobic capacity. Blood was drawn from the antecubital vein prior to and immediately after submaximal exercise and analyzed for hematocrit and total estrogen (radioimmunoassay). Cardiovascular responses were recorded at intervals during rest, exercise, and recovery. Stroke volume, cardiac output, and myocardial contractility were estimated from impedance data obtained using the Minnesota Impedance Cardiograph.

Additional Information

Language: English
Date: 1986
Exercise for women
Physical fitness for women

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