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Body composition: Assessment, components, and hydration
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Paper presented at the III International Conference of Physical Education and Sports Science (III ICPESS 2010) on “Youth in Physical Education and Sport”, Singapore, 25 - 28 May 2010
In the modern era, health professional including scientists. health workers and researchers from different disciplines are focusing on body composition in the area of assessments. physiology. psychology. nutrition, etc. These valuable information garnered from research. and clinical practices is becoming an important factor in determining obesity such as formulation of an exercise programme and diet regiment. psychological profiles based on body image, nutritional status. functional capacity and risk for chronic diseases. Body composition is necessary for an individual to maintain proper work capacity, muscular strength. and the ability to perform daily tasks such as walking and lifting. Negative changes in body composition can lead to decline in physical
performance capabilities of the individual. Currently there are number of indirect ways to assess body composition such as dual energy x-ray absorptiometry ( DEXA), under water weighing. body mass index (BMI), waist hip ratio ( WHR). bioelectric impedance ( BIA). skin fold measurement, circumference and girth measurements. These methods differ in accuracy and precision. Body composition is also affected by factors like hydration. This chapter focuses on the components of body composition and the various body composition techniques. In addition. it discusses the effects of hydration status on body composition.
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