your logo here illinois state university body composition chapters 7 and 8
TRANSCRIPT
![Page 1: YOUR LOGO HERE Illinois State University Body Composition Chapters 7 and 8](https://reader036.vdocuments.mx/reader036/viewer/2022070402/56649f265503460f94c3d30e/html5/thumbnails/1.jpg)
YOURLOGOHERE
Illinois State University
Body Composition
Chapters 7 and 8
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YOURLOGOHERE
Illinois State University
Body Composition Overweight vs Overfat Metropolitan Life Insurance Height-
Weight Charts
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YOURLOGOHERE
Illinois State University
Two-component Model: Fat mass Fat-free mass
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YOURLOGOHERE
Illinois State University
Four Component Model Adipose Bone Muscle Water
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YOURLOGOHERE
Illinois State University
Criterion Referenced Standards:
College Aged Men Women
Underfat < 3% <12% Healthy Zones 3-20% 12-30% Overfat >20% > 30% Obese > 25% > 35%
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YOURLOGOHERE
Illinois State University
Essential Fat Necessary for normal physiologic
function Men = ~ 3% Women = ~ 12%
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YOURLOGOHERE
Illinois State University
Non-essential fat Stored energy Average for College Aged Man = 12% Woman = 12%
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YOURLOGOHERE
Illinois State University
Average for College Aged
Male = 15%Female = 24%
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YOURLOGOHERE
Illinois State University
Sport specific body fat levels
Movement required? Resistance to movement required?
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YOURLOGOHERE
Illinois State University
Body Composition Abnormalities
Obesity Epidemic– $168 billion expense– 33.3% of all U.S. adults are obese - “an
excess of body fat frequently resulting in a significant impairment of health”
– ~70% are sedentary– ~25% of school-aged children are
obese.– 70% chance of early death.
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YOURLOGOHERE
Illinois State University
Creeping Obesity Food Intake Activity Levels Basal Metabolic Rate
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YOURLOGOHERE
Illinois State University
Fat Management Energy in = energy out = no
change in fatness Energy in > energy out = get
fatter Energy in < energy out = lose
fat
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YOURLOGOHERE
Illinois State University
IT IS JUST AS DANGEROUS TO YOUR HEALTH TO BE
UNDERFAT AS IT IS TO BE OVERFAT!!!!!
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YOURLOGOHERE
Illinois State University
Underfatness and eating disorders
Anorexia nervosa Bulimia nervosa
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YOURLOGOHERE
Illinois State University
Factors Influencing Body Composition
Energy intake Energy output Genetics
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YOURLOGOHERE
Illinois State University
Fat Patterning Sex related patterns Genetic based patterns
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YOURLOGOHERE
Illinois State University
Truncal Adiposity
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YOURLOGOHERE
Illinois State University
Fat Storage One door room. Primary storage sites. Secondary storage sites. Hyperplasia vs Hypertrophy
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YOURLOGOHERE
Illinois State University
Unwise Fat Loss Techniques
1. Starvation. Fat loss Water loss = dehydration Muscle loss. Fat gain.
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YOURLOGOHERE
Illinois State University
Unwise Fat Loss Techniques
2. Decreased retention Laxatives and Diuretics
– dehydration– malnutrition
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YOURLOGOHERE
Illinois State University
Unwise Fat Loss Techniques
3. Increased metabolism. Stimulants
– tolerance– addiction
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YOURLOGOHERE
Illinois State University
Unwise Fat Loss Techniques
4. Liposuction.
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YOURLOGOHERE
Illinois State University
Unwise Fat Loss Techniques
5. Magic.– Pills– Lotions– Vibration– etc
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YOURLOGOHERE
Illinois State University
Reality vs Image
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YOURLOGOHERE
Illinois State University
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YOURLOGOHERE
Illinois State University
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YOURLOGOHERE
Illinois State University
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YOURLOGOHERE
Illinois State University
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YOURLOGOHERE
Illinois State University
Maintenance of a Healthy Body Composition Profile
The only proven way to maintain a healthy body composition profile is to balance healthy nutrition with regular exercise.
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YOURLOGOHERE
Illinois State University
Fat Loss
Dieting alone is ineffective
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YOURLOGOHERE
Illinois State University
Fat Loss
Exercise alone is also ineffective.
You would have to run 35 miles to expend the energy in one pound of fat!
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YOURLOGOHERE
Illinois State University
Fat Loss
Of the two, exercise is most influential
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YOURLOGOHERE
Illinois State University
ACSM recommends eat 250 less per day expend 250 more per day
– (walk 2.5 miles) = 500 kcal per day reduction
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YOURLOGOHERE
Illinois State University
ACSM recommends do this 7 days a week = 3500 kcal in a week = 52 lbs in a year
See additional recommendations
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YOURLOGOHERE
Illinois State University
Assessment of Body Composition
1. Chemical analysis of cadavers. Most accurate Can only pre-test Tough finding volunteers
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YOURLOGOHERE
Illinois State University
Assessment of Body Composition
2. Hydrostatic weighing.– Land weight– Residual Volume and
GI volume– Water weight– Archimedes’ principle– Density– Percent fat.– + 2 percent error.
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YOURLOGOHERE
Illinois State University
Assessment of Body Composition
3. Skinfold assessment. Subcutaneous fat Site specific
measurements Population specific
equations– Jackson, Pollock,
Wilmore– Lohman– Yuhaz
+ 3-4 percent error
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YOURLOGOHERE
Illinois State University
Assessment of Body Composition
4. Body Mass Index wt (kg)/ht
2 (m)
Normal = < 25 men; < 27 women Moderately obese = 25-30 men;
27-30 women Massively obese = 30-40 either Morbidly obese = > 40.
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YOURLOGOHERE
Illinois State University
Assessment of Body Composition
5. Bioelectric Impedance Analysis
Electrical current Total body water
volume Body density Fat mass +3-20 percent error
(depending on equation)
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YOURLOGOHERE
Illinois State University
Assessment of Body Composition
Bod Pod Air
displacement
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YOURLOGOHERE
Illinois State University
Concerns of Assessment: Confidentiality Accuracy Purpose Over-emphasis
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YOURLOGOHERE
Illinois State University
Current Body Wt
Goal % Fat*
Goal % LBM*
Current % Fat*
Current Fat Wt
Current LBM
Target Body Wt
1
* % is expressed as a decimal. Divide by 100 before entering the data.
X byminus
minus
Computing Target Wt assuming all wt. Loss is fat
Fill in boxes with double lines and compute others