Obesity Flashcards
obesity
heterogeneous disorder where energy intake is chronically greater than energy expenditure therefore leading to excess body fatt accumulation
obesity is multifactorial
genetics environment metabolic physiologic behavioural social
genetics & obesity
genes linked
80% of the risk
children with obese parents have twice the risk
does NOT cause but predisposes
Leptin pathway
obese gene in fat cells creates leptin which moves into blood stream and signals to not eat anymore, mutations of this gene may predispose obesity by disrupting this pathway and therefore decreased leptin production
increased health risk occurs when fat distribution waist:hip ratio is ___ for women and __ for men
greater than 0.8 for women, greater than 0.95 for men
android obesity
fat in abdominal area greater health risk particularly visceral fat but also subcutaneous common in males apple shape
gynoid obesity
fat in gluteal femoral region
common in females
pear shape
when exercising and dieting it is important to remember
to protect fat free mass