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This article explores key concepts of body composition, including lean body mass, fat mass percentage, and the differences in body fat distribution between genders. It distinguishes between essential fat and storage fat, discusses the effects of subcutaneous and visceral fat, and compares body composition standards for typical adults aged 20-24. Additionally, it examines BMI classifications, waist-to-hip ratios, and provides body fat percentage recommendations to help individuals understand their health status and make informed decisions about weight management and fitness.
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Terms: Lean Body Mass Fat Mass Percent (%) Body Fat Essential Fat Storage Fat
Body Composition of a typical man and woman (20-24 years old)
40 years old 250 lbs. 5’6” BMI 40.3 36 years old 120 lbs. 5’5” BMI 20.0
B M I Body Mass Index
BMI’s Current Classification of Adults age 20 and older (2007-08) Healthy Weight (BMI > 19 to 25) 32% Overweight but not obese (BMI > 25) 34% Obese (BMI > 30) 34%
WAIST TO HIP RATIO Values >.85 to 0.9 for men Values >.75 to 0.8 for women