KINE 1020 Chapter Notes - Chapter 13-14: Magnetic Resonance Imaging, Subcutaneous Tissue, Image Analysis
10 Dec 2017
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Document Summary
Densitometry: under water weighing, only gives an estimate of whole body overall obesity and lean tissue, comparison of the participant"s body mass versus their weight in water gives a density value. Imaging methods of body composition in obesity: mri and ct used to provide cross-sectional images assess fat and are only methods available to measure internal tissue, which include, skeletal muscle, organs, visceral fat. Computed tomography (ct: uses radiation to create cross-sectional images, radiation travels through tissue differently based on density, denser more difficult for radiation to pass through. Magnetic resonance imaging (mri: uses magnetic fields, assessing whole body tissue, expensive, limited in term of availability. Image analysis is more complex and time consuming. Bioelectrical impedance analysis (bia: uses conductivity of the body to estimate fat-free mass and fat-mass, conductivity how well the body conducts electricity largely determined by body water. Anthropometry: science of measuring human body, includes measures such as: weight, stature, girths, body diameter, skin folds.
