Obesity Unit 4 Flashcards
BMI classifications for youth
The same BMI classifications used for adults DO NOT apply to children
Obesity definition
Excessively high amount of body far or adipose tissue in relation to lean body mass
Regarded as a chronic disease itself
Why are there variations in where we store fat?
The distribution of lipoprotein lipase LPL is different in different areas of our body
Diseases Associated with Obesity
The risk of these comorbidities increases with the degree and duration of overweight age and regional fat distribution
Obesity and metabolic Syndrome
The term metabolic syndrome is commonly used when the 3 out of 5 of the risk factors are present
- elevated glucose
- elevated blood pressure
- increased abdominal fat
- LOW HDL
- elevated triglycerides
Cause of Obesity
Ultimately obesity is due to an ENERGY IMBALANCE leading to the accumulation of excess fat tissue
Current Recommendations
Engage in moderately intense physical activity for 30 min or longer 5 days a week
Exercise to counteract obesity
It is very difficult to lose weight with EXERCISE ALONE
Exercise is recommended for MAINTENANCE OF WEIGHT LOSS
Benefits of weight loss
Improvements in chronic disease risk have been reported with as little as 2-3% weight loss
Fat but fit
CARDIORESPIRATORY FITNESS (CRF) assessed by maximal or sub maximal exercise testing is an objective measure related to physical activity fitness levels
How much energy restriction is recommended?
When energy restriction is not severe, diet + exercise is superior to diet alone for improving body composition
Energy restriction
Very low calorie diets have limited effectiveness in long teen weight loss
Energy Balance Theory of Obesity
The classic “energy balance” theory has emphasized EXCESSIVE APPETITE or INSUFFICIENT PHYSICAL ACTIVITY as the leading cause of weight gain
Metabolic Flexibility
Healthy individuals have high metabolic flexibility
Disrupting metabolic flexibility
A diet rich in refined carbohydrates and sedentary behavior may perturb this flexibility
