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Overweight and obesity are ubiquitous around the world, and to make matters worse, many fatal diseases are related to obesity. Consequently, an increasing effort have been made to help people lose weight. Due to the cost-effective, convenient and wide-reaching features of mobile applications, smart phone weight loss applications have gained great public attention. Such weight loss applications typically...
Obesity is an increasingly prevalent metabolic disorder, which results in increased risk of various diseases. One such disease is the coronary artery disease, which is the most common type of heart disease. Coronary artery disease (CAD) leads to the blockage of the arteries, that supply blood to the heart muscles, due to the accumulation of cholesterol and other material called plaque on the inner...
We studied hemodynamics characteristics at the heart level for a lot of 15 obese patients. We investigated echocardiographic and multigated radionuclide parameters correlating with the body mass index (BMI) or left ventricular ejection fraction (LVEF). Furthermore, the linear relationship obtained by plotting end-systolic volume (ESV) against end-diastolic volume (EDV) can be more useful than the...
Obesity increases the chances of various diseases, particularly heart disease, diabetes type 2, obstructive sleep apnea, certain cancers, osteoarthritis and asthma. Obesity is often caused by a combination of excessive food energy intake, lack of physical activity, and genetic susceptibility, although a few cases are caused primarily by genes, endocrine disorders, medications or psychiatric illness...
Heart failure comes in the top causes of death worldwide. The number of deaths from heart failure exceeds the number of deaths resulting from any other causes. Recent studies have focused on the use of machine learning techniques to develop predictive models that are able to predict the incidence of heart failure. The majority of these studies have used a binary output class, in which the prediction...
The present study examines the effects of obesity on left ventricular (LV) biomechanics in obese women. Thirty-two women were evaluated: 12 were non-obese (body mass index BMI < 30 kg/m2) and 20 were obese (BMI > 30 kg/m2); ten of which were hypertensive and ten were non-hypertensive. Left ventricular dimensions and systolic and diastolic functions were assessed by 2D echocardiography and tissue...
Obesity is a major health problem worldwide, with important economic and social effects. Obesity affects cardiovascular and respiratory systems directly. In this paper, after presenting a noninvasive indicator of contractility, based on the clinical echocardiografic measurements, a computer model (implemented in Simulink) based on the simplified circuit of the cardiovascular model is used, taking...
The body mass index (BMI) is nowadays the most used tool to evaluate obesity, involving only two anthropometric measures easy to obtain, the weight and the height (BMI=weight/height^2). The BMI is valuable because it evaluates obesity, classifying people into `underweight', `normal weight', and `overweight' classes. The value of the BMI means that through a classification of the weight condition,...
Both diabetes and obesity cause cardiac dysfunction. To separate consequences of geometric changes due to obesity from electrophysiological ones, we investigated how changes in cardiac and torso geometry affected body-surface ECGs. For this study, we modified the realistic heart and torso models of the simulation package ECGSIM. ECGs were calculated from action potentials on the heart surface using...
The number of web based health communities has increased during the latest years, and so has also the number of users. Among these, we find the health communities for people who suffer from lifestyle problems. These communities aim at helping people change their habits, and thereby preventing them from getting severe illnesses later. The communities are used for conversations about everyday struggles...
In the last 35 years, nuclear magnetic resonance has developed from a one dimensional chemical analytical method of spectroscopy to a four dimensional method for studying in vivo human physiology and diseases. These advances have evolved from the first carbon-13 spectroscopic studies in test tubes with electromagnets and in vivo proton imaging of biological objects to new methods of imaging in vivo...
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