| Treadmill exercise testing of asymptomatic men and women without evidence of heart disease. | |
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MedLine Citation:
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PMID: 19893990 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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The aim of this study was to test the hypothesis of differences in performance including differences in ST-T wave changes between healthy men and women submitted to an exercise stress test. Two hundred (45.4%) men and 241 (54.6%) women (mean age: 38.7 +/- 11.0 years) were submitted to an exercise stress test. Physiologic and electrocardiographic variables were compared by the Student t-test and the chi-square test. To test the hypothesis of differences in ST-segment changes, data were ranked with functional models based on weighted least squares. To evaluate the influence of gender and age on the diagnosis of ST-segment abnormality, a logistic model was adjusted; P < 0.05 was considered to be significant. Rate-pressure product, duration of exercise and estimated functional capacity were higher in men (P < 0.05). Sixteen (6.7%) women and 9 (4.5%) men demonstrated ST-segment upslope >or=0.15 mV or downslope >or=0.10 mV; the difference was not statistically significant. Age increase of one year added 4% to the chance of upsloping of segment ST >or=0.15 mV or downsloping of segment ST >or=0.1 mV (P = 0.03; risk ratio = 1.040, 95% confidence interval (CI) = 1.002-1.080). Heart rate recovery was higher in women (P < 0.05). The chance of women showing an increase of systolic blood pressure <or=30 mmHg was 85% higher (P = 0.01; risk ratio = 1.85, 95%CI = 1.1-3.05). No significant difference in the frequency of ST-T wave changes was observed between men and women. Other differences may be related to different physical conditioning. |
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Authors:
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W A Chalela; R B Fukushima; F Araujo; A C P Lima; P J Moffa; A J Mansur |
Publication Detail:
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Type: Journal Article Date: 2009-11-06 |
Journal Detail:
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Title: Brazilian journal of medical and biological research = Revista brasileira de pesquisas médicas e biológicas / Sociedade Brasileira de Biofísica ... [et al.] Volume: 42 ISSN: 1414-431X ISO Abbreviation: Braz. J. Med. Biol. Res. Publication Date: 2009 Dec |
Date Detail:
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Created Date: 2009-12-07 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8112917 Medline TA: Braz J Med Biol Res Country: Brazil |
Other Details:
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Languages: eng Pagination: 1230-5 Citation Subset: IM |
Affiliation:
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Instituto do Coração, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brasil. wchalela@incor.usp.br |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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