Title: Weight Management: Overweight, Obesity, & Underweight
1Weight Management Overweight, Obesity,
Underweight
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3Overweight
- Overweight (BMI 25-29.9) and obesity ( 30) are
widespread health problems that are continuing to
increase. - Many refer to overweight and obesity as an
epidemic. - For good health, weight management is important.
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5Overweight
- Fat Cell Development
- Fat cell numbers
- Fat cell numbers increase most rapidly in later
childhood and early puberty. - Fat cell numbers increase in times of positive
energy balance. - Hyperplastic obesity
6 During growth, fat cells increase in number.
Hyper-plastic
When energy intake exceeds expenditure, fat cells
increase in size. Hypertro- phic
When fat cells have enlarged and energy intake
continues to exceed energy expenditure, fat
cells increase in number again.
With fat loss, the size of the fat cells shrinks
but not the number.
Stepped Art
Fig. 9-2, p. 283
7Overweight
- Fat Cell Development
- Fat cell size
- Fat cell sizes increase when energy intake
exceeds expenditure. - Hypertrophic obesity
- The adverse effects of fat in non-adipose tissue
are called lipotoxicity.
8Overweight
- Fat Cell Metabolism
- Lipoprotein lipase promotes fat storage.
- Gender differences
- Men are at increased risk for developing central
obesity and women are at increased risk for lower
body fat.
9Overweight
- Set-Point Theory
- The bodys natural regulatory centers maintain
homeostasis at set point. - The human body tends to maintain a certain weight.
10Causes of Obesity
- Obesity may not be as simple as food intake
exceeding metabolic needs. - Some factors, such as overeating and inactivity,
are within our control. - Genetic, hormonal and emotional factors may
require professional intervention.
11Causes of Obesity
- Genetics
- Leptin (also called the ob protein)
- Protein that acts as a hormone to increase energy
expenditure and decrease appetite - Produced by fat cells under the direction of the
ob gene - May be deficient in obese individuals
- More research is needed.
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14- I'm in shape.
- Round is a shape.
15Causes of Obesity
- Environment The gene pool of our population
remains relatively unchanged. - Overeating
- Present and past eating influences current body
weight. - Increased availability of convenient food, large
portions, and energy-dense foods - Physical Inactivity
- Modern technology replaces physical activities.
- Physical activity is important to allow people to
eat enough food to get needed nutrients.
16Buy a lot of McDonalds food and get a big,
fat ass, absolutely free.
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18Causes of Obesity
- Environment The gene pool of our population
remains relatively unchanged. - Overeating
- Present and past eating influences current body
weight. - Increased availability of convenient food, large
portions, and energy-dense foods - Physical Inactivity
- Modern technology replaces physical activities.
- Physical activity is important to allow people to
eat enough food to get needed nutrients.
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20. LAZINESS IS NOT A HANDICAP .
21Obesity Risk Factors
- Genetics
- Family history of obesity
- Psychological factors
- Social and cultural factors
- Medical Illnesses
- Medications
- Alcohol consumption
- Smoking Cessation
22Problems with Obesity
- Obesity problems depend on many factors such as
the extent of overweight, age, health status and
genetic makeup. - Risk factors may differ among individuals.
23Makes a point about a topic
Lets just say you weigh too much and the less
said about your future the better
- Give a man a fish and
- he will eat for a day.
- Teach him how to fish, and
- he will sit in a boat and
- drink beer all day.
24Problems with Obesity
- Health Risks
- Obese or overweight people with the following
life-threatening-conditions may improve health by
losing weight - Heart disease
- Type 2 diabetes
- Sleep apnea
25Problems with Obesity
- Perceptions and Prejudices
- Social Consequences
- Prejudices and discrimination
- Judged on appearance rather than character
- Stereotyped as lazy and lacking self-control
- Psychological Problems
- Feelings of rejection, shame and depression are
common. - Ineffective treatments can lead to a sense of
failure.
26 Stepped Art
Fig. 9-4, p. 289
27Problems with Obesity
- Dangerous Interventions
- Fad Diets
- False theories
- Inadequate diets
- Can be a danger to health
28Treatment Modalities
- Diet (proper Healthy nutrition)
- Exercise
- Behavior therapy/modification/change
- Pharmacotherapy
- Surgery
29Treatment Modalities
- Diet vs proper nutrition
- Exercise
- Behavior therapy/modification/change
- Pharmacotherapy
- Surgery
30Dieting and Dollars
- Dieting? Today 40 of women, 25 of men
- Nationwide, 55 trying to maintain current
weight. - Approximately 45 million Americans diet each
year. - 80 of adult women have dieted
- 40 billion annually trying to lose weight or
maintain weight. - 1 to 2 billion on weight lose programs.
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WHO EVER INVENTED DIETS SHOULD BE TAKEN OUT AND
SHOT!
32Types of Weight Loss Diets
- Low Carbohydrate aka High Protein
- Low Fat aka High Carbohydrate
- Very Low Calorie aka Modified Fast
- Novelty Diets
- Weight Loss Programs
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34Why Weight Loss Programs Do Not Work
- Negative Impact
- Temporary
- Perfect- Orientation
- Project Mentality
- Do not Address Cause
35Consequences of Dieting
- Decrease in rate of weight loss
- Loss of lean tissue with fat loss
- Decrease in metabolism, 10-40
- Decrease in Protein turnover
- Preoccupation with food
- Increase in irritability, moodiness
- Tires easier, less physical activity
- Apathy, depression
36Re-feeding after Weight Loss
- Increase in pre-dieting food intake
- Preference for high fat foods
- Regain in weight, but greater increase in BF
- Metabolism slow to return to normal
- Regain Weight quicker with each diet
- Increase in abdominal fat deposits
- Less likely to return to pre-diet physical
activity - Decrease in self-efficacy/esteem
37Recognizing an Unsound Diet
- Promotes Quick Weight Loss
- Limits Food Selection
- Testimonials or Famous People/Places
- Expensive Supplements or Products
- No Attempt to Permanently change eating or
- physical activity
- Critical of Scientific Community
- They know more, or something new
38Characteristics of a Sound Diet
- Nutritionally adequate yet low in calories
- Fit into current lifestyle
- Foods that are liked
- Slow rate of weight loss
- Followed for life
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40Predicting Weight Loss
- Positive Affirmations
- Strong Motivation
- Supportive Environment
- Appropriate Behaviors
- Changes in Body Shape
41Predicting Weight Loss
- Positive Affirmations
- Self esteem
- Self confidence/efficacy
- Good attitude
- Positive outlook
42Predicting Weight Loss
- Strong Motivation
- Desire or want
- Belief it is possible
- Commitment to doing it
- Positive attitude
- Persistence
43Predicting Weight Loss
- Supportive Environment
- Family and friends
- Support group or organization
- Professional
44Predicting Weight Loss
- Appropriate Behaviors
- Healthy eating
- Exercise that produces goal
- Changing problem behaviors
45Predicting Weight Loss
- Changes in Body Shape
- Body Composition changes
- Circumference changes
- Looks better, Cloths fit better, etc.
46Predicting Weight Loss
- Positive Affirmations
- Strong Motivation
- Supportive Environment
- Appropriate Behaviors
- Changes in Body Shape
47- I was going to buy the book THE POWER OF
POSITIVE THINKING and then I thought what the
hell good would that do!
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49Treatment Modalities
- Diet proper Healthy nutrition
- Exercise
- Behavior therapy/modification/change
- Pharmacotherapy
- Surgery
50I see no reason why you should not engage in
strenuous activity
Well keep looking, keep looking!
51Exercise
- In response to the question whether diet plus
exercise is more effective than diet alone in
causing weight loss, the conclusion of the
consensus panel was as follows "--- - in most studies exercise does not significantly
increase initial weight loss over and above that
obtained with diet only. However, in almost all
studies the diet plus exercise group lost
somewhat more weight than the diet alone
condition."
52THE 100 METER MOSEY
53Exercise
100
FAT
of calories expended
Carbohydrate
0
5
10
20
Time minutes
54Three more, two more, one more, okay!...Five
million leg lifts right leg first! Ready
55Exercise
- Two short sessions/day or one long session?
56Exercise
- Two short sessions/day or one long session?
- Yes!
57Exercise
- Two short sessions/day or one long session?
- Yes!
- Mode Walking, Daily Activity
- Frequency 5 - 7 times / week
- Duration 40-60 minutes
- 20-30 minutes X 2
- Intensity Moderately
58- My mother started walking five miles a day when
she was 60. - She's 77 now and I have no idea where she is.
59Treatment Modalities
- Diet proper nutrition
- Exercise
- Behavior therapy modification/change
- Pharmacotherapy
- Surgery
60To make a long story short, what ever you are
doingSTOP IT!
61Behavior therapy
- Behavior modificationTo lose weight and keep it
off, you need to make changes in your lifestyle.
But there's more to changing your lifestyle than
choosing different foods and putting more
activity into your day. It also involves changing
your approach to eating and activity, which means
changing how you think, feel and act.
62Behavior therapy
- A behavior modification program can help make
lifestyle changes -
- Behavior modification programs may include
examining current habits to find out what factors
or situations may have contributed to excess
weight. - Exploring current eating and exercise habits
gives a place to start when changing behaviors.
63Behavior therapy
- First identify those that are a problem
- Choose those that you are willing to change
- Take responsible for your behavior
- Have a plan to make better choices
- Remember the benefit
- Focus on the positive
64Behavior therapy
- Have a plan. People do NOT plan to fail, they
simply fail to plan! - Work out a strategy that will gradually change
habits and attitudes. - Consider how often and how long to exercise.
- Determine a realistic eating plan that includes
plenty of water, fruits and vegetables. - Write it down and choose a start date.
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66Behavior therapy
- Set realistic goals.
- Weight-loss goals can be process goals, such as
exercising regularly, or outcome goals, such as
losing 20 pounds in four months. -
- Make sure process goals are realistic, specific
and measurable. For example, you'll walk for 30
minutes a day, five days a week. - For outcome goals, aim to lose weight at a safe
pace of 0.5 or 2 pounds a week. Losing weight
more rapidly means losing water weight or muscle
tissue, rather than fat.
67Behavior therapy
- Avoid food triggers. (Cues)
- Distract from the desire to eat with something
positive, such as calling a friend, taking a
walk, reading a book (not a recipe book). - Practice saying No to unhealthy foods and big
portions. -
- Eat when actually hungry not when the clock
says it's time to eat.
68This is my relaxation tape its the sound of
ocean waves crashing onto the shore, snatching
my teachers body off his beach chair and
carrying him out to sea.
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70Treatments of Obesity
- Individuals with clinically severe obesity and
major medical problems may benefit from drugs or
bariatric surgery. - But changing and improving eating and exercise
habits offer the greatest benefit.
71Treatment Modalities
- Diet proper nutrition
- Exercise
- Behavior therapy modification/change
- Pharmacotherapy
- Surgery
72Problems with Obesity
- Dangerous Interventions
- Weight-Loss Products
- Ephedrine-containing products inhibit serotonin
and suppress the appetite. Supplements containing
Ephedra have been banned by the FDA due to
potential health risks. - Herbal laxatives do not prevent absorption.
- Current laws do not require safety tests and
effectiveness tests for these products.
73To help you lose weight, take one aspirin every
day. Take it for a jog, then take it to the
gym, then take it for a bike ride
74Treatments of Obesity
- Drugs
- Sibutramine suppresses the appetite and is most
effective when used with a reduced kcalorie diet
and increased physical activity. There are many
side effects. - Orlistat blocks fat digestion and absorption.
There are many side effects including anal
leakage.
75Treatment Modalities
- Diet proper nutrition
- Exercise
- Behavior therapy modification/change
- Pharmacotherapy
- Surgery
76Treatments of Obesity
- Surgery
- Surgery is an option for those who have tried
weight loss programs and failed, have a BMI 35,
and are having health problems due to their
weight. - Gastric surgery has short-term and long-term
problems and requires compliance with dietary
instructions. - Liposuction is a popular procedure that is
primarily cosmetic but poses risk.
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78Predicting Weight Loss
- Positive Affirmations
- Strong Motivation
- Supportive Environment
- Appropriate Behaviors
- Changes in Body Shape
79Weight-Loss Strategies
- A life-long eating plan for good health, which
includes nutritionally adequate eating,
reasonable expectations, regular physical
activity, and permanent lifestyle changes, is
best for achieving permanent weight loss. - Weight loss of 0.5-2 pounds per week or 10 of
body weight in six months is safe.
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81Weight-Loss Strategies
- Eating Plans
- Be Realistic about Energy Intake
- 300-500 kcalories/day reduction for BMI between
27 and 35 - 500-1000 kcalories/day reduction for BMI 35
- Dietary Guidelines should be followed.
- Diet should be nutritionally adequate while
avoiding excessive consumption. - Smaller portions are recommended to feel
satisfied, not stuffed.
82Weight-Loss Strategies
- Eating Plans
- Eat foods of lower energy density, that are high
in fiber, high in water and low in fat. - Water is important to increase fullness and
reduce hunger. - Complex carbohydrates offer abundant vitamins,
minerals and fiber with little fat. - Choose fats sensibly and reduce the quantity of
fat. - Watch empty kcalories from sugar and alcohol.
83Meal Planning
- Plan meals throughout the day
- Eat a variety o Foods (at each meal)
- Center Meals around the carbohydrate foods
- Minimize the addition of FAT all the time and
sugar at any one time - Dont worry about protein
84Plan Meals thru the Day
- Think about what you are going to eat instead of
eating by habit or impulse! - Eat more earlier when more active
- Eat less later when less active
- i.e. a little often vs. a lot at once
- The later you eat, the lighter you eat
85Eat a Variety of Foods(at Each Meal)?
- Provides more nutrition
- Each member of the family can choose what they
want at that time - Controls eating one food in excess
- Exposes a person to different foods
- Makes a better meal
86Center Meals around the Carbohydrate Foods
- Answers the question
- What am I supposed to eat?
- Provides the best source of energy.
- Provides a lot of most nutrients, (including
fiber)? - Low in fat, and has the good type and contains
no cholesterol. - Most have protein, certainly enough.
- Are not fattening--fats are!
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88Minimize FATS and SUGAR
- Fats are fattening
- Fats can lead to other health problems
- Minimize fat intake, dont eliminate it
- Sugar in large amounts is a problem
- Sugar is an enjoyable taste and may displace
foods with more nutrition and be concentrated - Fat and Sugar mix well with each other the real
problem
89Dont worry about PROTEINS
- Important for growth (height) and development
- Needed in smaller amount than most people think
(.8 grams/kilogram BW)? - Can be gotten from a variety of carbohydrate
foods as well as the protein foods (meat, dairy)? - Use as a part of the meal, not as the meal (eat
lean, less and last)?
90Weight-Loss Strategies
- Physical Activity
- An individuals body weight as well as intensity
and duration of activity influence energy
expenditure. - Physical activity increases the amount of
discretionary kcalories that can be consumed. - Metabolic rates can rise with daily vigorous
activity. - Activity can decrease body fat and increase lean
body mass. - Exercise may help to curb appetite.
- Activity can reduce stress and improve
self-esteem.
91Weight-Loss Strategies
- Physical Activity
- Choosing Activities
- Choose activities that you enjoy and are willing
to do regularly. - Low to moderate intensity for long duration is
recommended. - Daily routines can incorporate energy activities.
- Spot Reducing
- Regular aerobic exercise and weight loss will
help trouble spots. - Strength training can improve muscle tone.
- Stretching can help flexibility.
92Weight-Loss Strategies
- Behavior and Attitude
- Behavior modification requires time and effort.
- Awareness of behavior is the first key.
- Changing behaviors one at a time works best.
- Do not grocery shop when hungry.
- Eat slowly.
- Exercise while watching television.
- Personal attitudes toward food and eating must be
understood. - Support groups may be helpful for some people.
93Weight-Loss Strategies
- Weight Maintenance
- Successful weight-loss maintenance programs use
different criteria so they are difficult to
compare. - Vigorous exercise and careful eating plans are
key. - Frequent self-monitoring is recommended. Weekly
weight, food diary, exercise journal,
circumference measurements
94Weight-Loss Strategies
- Prevention
- Eat regular meals and limit snacking.
- Drink water in place of high-kcalorie beverages.
- Select sensible portion sizes and limit daily
energy intake to energy expended. - Limit sedentary activities and be physically
active.
95Underweight
- Incidences of underweight and associated health
problems are less prevalent than overweight and
obesity problems.
96Underweight
- Problems of Underweight
- Causes are diverse.
- Energy demands may be great and foods are needed
to support growth and physical activities. - Eating disorders are severe cases.
97Underweight
- Weight-Gain Strategies
- Energy-dense foods can be included but choose fat
wisely to avoid the associated cardiac risks. - Regular meals each day must become a priority.
- Use large portions and expect to feel full.
- Consume extra snacks between meals.
- Juice and milk are easy ways to increase
kcalories. - Exercising to build muscles will support
increases in muscle mass.