The effect of eight weeks of resistance training and white tea consumption on leptin and ghrelin hormones in inactive obese women
Subject Areas : Physiology of Training and Sports Injuries
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Keywords: Leptin, Gerlin, white tea, obese women,
Abstract :
Obesity is an increase in body fat mass, which is caused by environmental factors and favorable genetic background in an individual. Obesity is a health risk and a loss of individual and social well-being that gives hope to life (Bouchard, 2000; Park, K. 2002). The pathogenesis of obesity is very complex and has a set of factors that contribute to its occurrence. These factors include genetic predisposition, age, sex, dietary habits, environmental factors, physical activity and exercise, socio-psychological factors, endocrine dysfunction, serum leptin levels, etc. (Dishman and Washburn, 2004; Bouchard, 2000, 2000 and 3 Neem. 2004; Bouasida et al., 2006).
Leptin is a protein hormone that is produced by fat cells and is In obese individuals, leptin levels are elevated in fat cells and serum. Limited animal and human experience suggests that leptin reduces food intake and treats body fat. Leptin's effects on the brain regulate and control weight and some of the metabolic processes associated with it. Dysfunction of leptin causes weight and fat gain and leads to obesity (Boucida et al., 2006). On the other hand, low energy intake, which in turn leads to physical activity and exercise, also plays an important role in the development of obesity (Dishman and Washburn, 2004; Bouchard, 2000; Nieman, 2003; Limora and Douillard, 2004). It seems that two factors, serum leptin levels, play a very important and decisive role in weight control and body fat reduction by affecting appetite and the ability to reduce energy intake and physical activity to a significant extent.
The hormone ghrelin was first discovered in 1999 from stomach cells. It is an endocrine ligand for growth and stimulates growth from the pituitary gland. In addition, it suppresses appetite and increases food intake by acting on the arcuate nucleus of the hypothalamus (a region involved in the control of food intake). Therefore, ghrelin plays an important role in maintaining healthy growth and energy homeostasis in vertebrates. (Frank Edelman-2012)
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