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Total Body Composition Analysis “S ee What You’re M ade O f”. Who can benefit from using it ? What does it mean? What do I do with my results ?. Total Body Composition Analysis “S ee What You’re M ade O f”. Who can benefit from using it? Athletes - PowerPoint PPT Presentation
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Total Body Composition Analysis“See What You’re Made Of”
Who can benefit from using it?What does it mean?What do I do with my results?
Total Body Composition Analysis“See What You’re Made Of”
Who can benefit from using it? Athletes
To guide and monitor fat loss and muscle gain Overweight people
Lose fat and gain muscle Estimate how many calories should be eaten per day to lose fat How much additional exercise should be done to lose fat
People with declining physical function/muscle Older people People who have been ill People who have taken steroids (prednisone) Measures skeletal muscle
then can exercise to improve the result
Total Body Composition (Fat) Analysis
Most accurate clinical method to measure: Total body fat Total body lean body mass Skeletal muscle Resting metabolic rate
What do we use? Dual-Energy x-ray absorptiometry
DEXA for short The same technology used
By the TV show “The Biggest Loser”
How is a DEXA done? Uses very low levels of radiation
Safe Uses less radiation than flying round trip Washington DC to Los Angeles
Measures the density of body parts (such as fat and muscle) Person lays on a padded bed on back under the scanner
Scanner takes a picture of the body Scan is painless and fast
What will I learn from the test? Lean Muscle Mass Fat Amount Android fat vs Gynoid fat
Android fat increases risk for heart attacks Resting Metabolic Rate Relative Skeletal Muscle Index
Amount of muscle that is on arms and legs
LEAN
Lean mass includes non-fat body parts organs, muscle, bones, fluids
Higher the “Tissue %Lean”, the more muscular the body
GOAL: Increase muscle mass with exercise program
FAT
Shows your body fat % Compares to your age
group and gender Tells you if you are
“normal”, “overweight”, or “obese”
Example of body fat % chart comparing the result to other people of the same gender and age
See next slide on how to interpret result
This 24 year woman’s fat % lies just below the dark middle line (the average)
This person would be considered “average” and has a good body fat percentage
However, an athlete may need to have a lower body fat % and can use this baseline to improve upon through diet and exercise
If a person’s result shows “overweight” or “obese”… GOAL = lose weight through diet/exercise
ANDROIDvs GYNOID fat
Android (waist) fat is often associated with Apple-shaped body types. Predicts risk for heart attacks
Android (waist) fat is often associated with Apple-shaped body types.
GOAL: Decrease amount of android fat with diet/exercise to decrease risk of heart attacks
RESTING METABOLIC RATE
Resting metabolic rate = Resting energy expenditure Basal metabolic rate
Estimates # of calories you burn if you do nothing but rest
Result = calories per day
RESTING METABOLIC RATE
Used to figure out: How many calories a day to
eat in diet + How much calories should
be burned a day through exercise to lose fat
RELATIVE SKELETAL MUSCLE INDEX
Relative amount of muscle in the arms and legs
GOAL FOR ATHLETES: Use exercise program to improve this value on subsequent results Improves athletic performance
RELATIVE SKELETAL MUSCLE INDEX
Useful also for: Older people who are losing
muscle mass that causes falls and loss of physical function
People who have lost muscle mass due to steroids (prednisone)
People who have lost muscle due to illness
GOAL: Perform regular exercise to increase muscle mass. Can see this when test is repeated
Total Body Composition Analysis“See What You’re Made Of”
How to use the results: - Obtain current values for fat, muscle, and calorie use
- Use this to design an exercise and diet regimen
- Repeat test at intervals to monitor your progress