BPK 142 Lecture Notes - Lecture 4: Body Fat Percentage, Bone Density, Subcutaneous Tissue
12 Nov 2018
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Estimation of body fat percentage = info on health and fitness. Excess of body fat/ obesity = several diseases. 1940s to 1990s underwater weighing used as criterion standard for body fat estimation. Low amount of body fat also = diseases: weight for height tables + others used to assess for obesity. Limited in that not all people who are heavy for their height are obese. Body builder = fallacy of using weight for height chart. Since 1940s method of choice = anthropometric measures. Based on regression equations for prediction of body fat percentage or body density from various anthropometric measures. Some equations predict body density which then is transformed to body fat percentage using other equations like siri or brozek. Predictive equations produced by determining indirect body densities in a group of subjects carrying out regression analysis on body density determined by anthropometric variables: predictive ability indicated by correlation coefficient r and standard error of estimate see.
