HLTH2520 Lecture 6: HLTH2520-Lecture 6
Document Summary
Introduction: body composition is a key component of individuals health and fitness profile, maintaining a healthy body weight and level of body fat is key to a healthier, longer life. Essential lipids (phospholipids) needed for cell membrane formation. Nonessential lipids (triglycerides) provide thermal insulation, store metabolic fuel, assist in the functioning of the nervous system and growth and maturation. Cardiovascular & pulmonary disease, metabolic disease, osteoarthritis. Fluid-electrolyte imbalance, renal, reproductive disorders, osteoporosis, muscle wasting. Two component model: relies on several assumptions, density of fat and fat free mass is the same. Db fat-free body (ffb) = 1. 100 g/cc. Proportion of water, mineral and protein are constant for all individuals. Males - store fat in the abdominal region. Females - store fat in the hip region. White v"s b(cid:396)own fat: brown adipose tissue (bat) Plays a crucial role in infants and young children. Adults regulate body temperature by different mechanisms.
