کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2942503 1177129 2014 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Association of Cardiorespiratory Fitness With Left Ventricular Remodeling and Diastolic Function : The Cooper Center Longitudinal Study
ترجمه فارسی عنوان
انجمن تناسب اندام قلب با مجرای بطن چپ و عملکرد دیاستولیک: مطالعه طولی مرکز کوپر
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی کاردیولوژی و پزشکی قلب و عروق
چکیده انگلیسی

ObjectivesThis study sought to compare the cross-sectional associations between fitness and echocardiographic measures of cardiac structure and function.BackgroundCardiorespiratory fitness is inversely associated with heart failure risk. However, the mechanism through which fitness lowers heart failure risk is not fully understood.MethodsWe included 1,678 men and 1,247 women from the Cooper Center Longitudinal Study who received an echocardiogram from 1999 to 2011. Fitness was estimated by Balke protocol (in metabolic equivalents) and also categorized into age-specific quartiles, with quartile 1 representing low fitness. Cross-sectional associations between fitness (in metabolic equivalents) and relative wall thickness, left ventricular end-diastolic diameter indexed to body surface area, left atrial volume indexed to body surface area, left ventricular systolic function, and E/e′ ratio were determined using multivariable linear regression analysis.ResultsHigher levels of mid-life fitness (metabolic equivalents) were associated with larger indexed left atrial volume (men: beta = 0.769, p < 0.0001; women: beta = 0.879, p value ≤0.0001) and indexed left ventricular end-diastolic diameter (men: beta = 0.231, p < 0.001; women: beta = 0.264, p < 0.0001). Similarly, a higher level of fitness was associated with a smaller relative wall thickness (men: beta = –0.002, p = 0.04; women: beta = –0.005, p < 0.0001) and E/e′ ratio (men: beta = –0.11, p = 0.003; women: beta = –0.13, p = 0.01). However, there was no association between low fitness and left ventricular systolic function (p = NS).ConclusionsLow fitness is associated with a higher prevalence of concentric remodeling and diastolic dysfunction, suggesting that exercise may lower heart failure risk through its effect on favorable cardiac remodeling and improved diastolic function.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: JACC: Heart Failure - Volume 2, Issue 3, June 2014, Pages 238–246
نویسندگان
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