493 The heart preserves contraction and contractility during maximal exercise even during moderate hypoxic conditions
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چکیده
منابع مشابه
Moderate-term reproducibility of heart rate variability during rest and light to moderate exercise in children.
Previous studies have demonstrated the high reproducibility of heart rate variability (HRV) measures in adults while little information exists concerning HRV reproducibility in children. Subsequently, the aim of the current study was to examine the moderate-term reproducibility of heart rate and frequency domain measures of HRV during rest and light to moderate exercise in children. Ten healthy...
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Objective: Very recent studies have reported positive effects of dietary nitrate on the oxygen consumption during exercise. This research aimed to study the effect of moderate dose of high-nitrate vegetables, watercress (Nasturtium officinale) and red radish (Raphanus sativus) compared with a control group on the incremental treadmill exercise test following a standard Bruce protocol controlled...
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BACKGROUND Acceleration of the mitral ring during isovolumic contraction has been proposed as a load-independent index of global left ventricular (LV) contractility. This study investigates whether myocardial isovolumic acceleration (IVA) reflects regional contractility. METHODS AND RESULTS In acutely instrumented, anesthetized dogs, we measured LV pressure, myocardial long-axis velocities, a...
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ژورنال
عنوان ژورنال: European Journal of Echocardiography
سال: 2003
ISSN: 1525-2167
DOI: 10.1016/s1525-2167(03)90777-3