Chapter 4 Flashcards
What are the reasons for classifying overweight and obese?
provides meaningful comparisons and identifies individuals with an increased risk
What are the causes for obesity?
general increase in energy intake, overeating, and physical inactivity
Link to genetics allows researchers to view overtness as…
a disease rather than a psychological flaw
A child with obese parents…
can double the risk of becoming obese
Genetic makeup can lower the threshold for obesity rather than
cause it
Types of regional fat distribution
central (android-type) obesity and peripheral (gyroid-type) obesity
What is fat cell hypertrophy?
existing adipocytes enlarge or fill with fat
What is fat cell hyperplasia?
total adipocyte number increases
As body fat increases…
there is first an increase in size of cells, then an increase in number of cells
Is there a limit to adipocytes?
yes there is a biologic upper limit
What fat accumulation happens as you age?
gain about 2 lbs per year in your 40s and 50s, but eventually comes back down
What determines body weight?
energy in - energy out
1 pound of fat =
3500 kcal
1 pound of muscle =
2500 kcal
What are the current recommendations for weight loss?
5-15% reduction in weight reduces disease risk and consider calorie reduction with physical activity
5-6 UNIQUE RECOMMENDATIONS FROM THE POSITION STAND
