1. Body Composition and Weight

2. Body Composition
Body Composition: The ratio of fat to muscle, bone and other tissues of your body.
 Fat stores =  Body fat %
 Fat Stores =  Body Fat %
Body composition, not weight, is the true method to determine a good healthy weight!
Desirable Weight: weight that is healthful for a person
Weight Management: a diet and exercise plan to maintain a desirable weight and body composition.

3. Body Composition 5 lbs of Fat = 5 lbs of Muscle
What is the difference?
Muscle takes up less space on the body (1/3 less)
You can weigh more but still be in great health.

4. Body Composition
Body Frame: approximate weight and density of the bone structure.
Measure your wrist
Small: 5 ½ inches
Medium: 6 ¼ inches
Large: 6 3/8 inches

5. Somatotypes Somatotypes= “Body Type” 3 Body Types: Ectomorph Mesomorph
Small
Mesomorph
Medium
Endomorph
Large

6. Body Fat
Essential Body Fat: amount of body fat needed for optimal health
Adipose Tissue: fat that accumulates around internal organs, muscles, and under your skin.
Teen Males: 11 to 17 %
Teen Females: 16 to 24 %

7. Men Vs. Women Men typically have less body fat than women! Why?
Fat is essential for child birth and ovulation!
Lack of female body fat has many serious complication!
26 billion fat cells
35 billion fat cells

8. Is Fat a Villan?
NO!
Fat provides support
Fat provides warmth
Fat provides energy
However, excess body fat can cause many complications.

9. Ways to Determine Healthy Body Composition!

10. Body Mass Index
1 way to assess your body size in relation to height and weight
Use your weight and height
Adult BMI Calculator
Teen BMI Calculator
BMI Score
Rating
18.5 or less
Underweight
Normal
Overweight
Obese
Extremely Obese

12. Downfall of BMI BMI uses weight and height
However, you can weigh more and be healthier! How?
More muscle mass
BMI is not the best assessment of healthy weight. But may be a starting point!

13. BMI

14. Bioelectrical Impedance
Uses electricity to determine body fat
How??
Electrical current is timed as it is sent from 1 foot to the other foot
Current travels through muscle and fat of leg
↑ Fat = Slower Time of travel
Affordable and fairly accurate to use in homes!

15. Bioelectrical Impedance

16. Skin Fold Measurements
Caliper- Pincher device
Fat under skin is pinched by a caliper in a variety of sites to determine a rough estimate of body fat in the body.
Uses a formula to determine body fat %
Estimate: Not the most accurate method
Should be trained to administer

18. Hydrostatic Weighing Best Method of Determining healthy B.C.
Fat- Floats
Lean Tissue- Sinks
Therefore, person with more lean tissue will
be heavier under water. (Lower Body Fat)
Conversely, person with more fat will be
lighter under water. (Higher Body Fat)
Based on Archimedes principle:
“That when a body is submerged in water, there is a buoyant counter force equal to the weight of the water which is displaced".

19. Hydrostatic Weighing

21. The BOD POD
The BOD POD is an Air Displacement Plethysmograph (ADP) that uses whole body
densitometry to determine body composition (fat vs. lean). Similar in principle to underwater
weighing, the BOD POD measures body mass (weight) using a very precise scale, and volume
by sitting inside the BOD POD. Body density can then be calculated:

22. The Bod Pod

24. Bod pod