Obesity Unit 4 Flashcards Preview

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Flashcards in Obesity Unit 4 Deck (17):

Obesity definition

Excessively high amount of body far or adipose tissue in relation to lean body mass

Regarded as a chronic disease itself


BMI classifications for youth

The same BMI classifications used for adults DO NOT apply to children


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
-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


Hormonal factors

LEPTIN is a hormone secreted by fat cells which functions to signal the. Satiety center of the hypothalamus


Childhood Birth Weight

Several studies have shown an INVERSE relationship between birth weight and childhood obesity