chapter 9 weight management
TRANSCRIPT
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Weight Management:
Overweight and Underweight
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Distribution of Body Weights inAmerican Adults
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How Does US Stand?
ADD Stat% of US Adults were overweight in 1998
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Fat Cell Development
During periods of
growth in late childhood/earl
y puberty, # on fat cells
increase
During periods of
excess intake, fats cell size
increases
When fat cells have reached
their maximum
size, the cell number
increases
Even with fat loss, the cells
may shrink but not the
number
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LPL Levels and Set Point Theory
LPL (Lipoprotein Lipase)
-- located on adipose cell membranes and promote fat storage
-- higher the activity level of LPL, the more efficient storage of fat is
-- after weight lose, LPL increases, increasing fat deposition
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The Weight-Cycling Effect of Repeated Dieting
Each period of dieting results in
a resetting of your
“homeostatic set point”.
Therefore, each loss is followed by a gain even larger than the
loss
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The ob Protein: Leptin
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Leptin’s Action in the Body:Negative Energy Balance
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Leptin’s Action in the Body: Positive Energy Balance
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The Psychology Weight Cycling
Where does this “I’m not
happy with my appearance” come from?
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Comparison of Average Women, Barbie and Store Mannequins
“Average”
Women
Barbie
Store Mannequin
s
Height
Weight
Dress size
Bust
Waist
Hips
BMI
5’ 4”
145 lbs.
11 -14
36 - 37”
29 - 31”
40 - 42”
24.97
6’ 0”
101 lbs
4
39”
19”
33”
13.7
6’ 0”
Not available
6
34”
23”
34”
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BMI of Miss America Winners
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Jamie Lee CurtisInterview on Dateline
following her Cover Story in More Magazine
Add link to video
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Aggressive Methods of Weight Control
Drugs:
Sibutramine - suppresses appetite by inhibiting uptake of serotonin
Orlistat - inhibits pancreatic lipase activity lowering the efficiency of fat digestion and absorption
Over the counter: Benzocaine, Acutrim, Dex-A-Diet, Phenyldrine, Phenoxine,
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Aggressive Methods of Weight Control
Herbal:
St. John’s Wort
Ma Huang - Ephedrine(Nature’s Own Fat Burner!!)
CLA (Conjugated Linoleic Acid)
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Aggressive Methods of Weight Control
Surgery:
Suction lipectomy - Liposuction
Stomach restriction - Gastric Bypass Surgery
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Surgical Methods of Weight Control
Gastric Bypass
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More Reasonable Methods for Weight Loss
Weight Loss Eating Plans:
- emphasize Adequacy- smaller portions (e.g. grazing)- emphasize Complex Carbs- select Fats wisely- emphasize Nutitional Density- drink lots of water- increase Physical Activity
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More Reasonable Methods for Weight Gain
Weight Gain Eating Plans:
- Energy Dense Foods- Regular Meals- Add Extra Snacks- Juice & Milk- Physical Activity builds Muscle
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Athlete Eating Disorders –Female Athlete Triad
Add video
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Anorexia NervosaBulimia Nervosa
Binge Eating DisordersThe Vicious Cycle:
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Anorexia Nervosa
- refusal to maintain healthy body weight( Usually < 85% of healthy body weight )
- intense fear of gaining body weight
- see themselves in unrealistic way
- restrictive and binge-and-purge types
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Bulimia Nervosa
- relatively normal body weight
- see themselves in unrealistic way
- purge and non-purging types
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Binge Eating Disorder
- normal and obese body weight
- see themselves in unrealistic way
- rarely purge
- behavioral disorder