Chap. 17 Nutrition Body Comp, Obesity Flashcards
Systemically what two things make up body comp?
Chemical and Molecular
How much does muscle and fat weigh compared to water?
Muscle- Heavier
Fat- Lighter
What are 3 limitations of hydrostatic weighing?
- Air in lungs
- Conversion of body density to percent fat
- Being in a bathing suit
What does DEXA stand for?
Dual Energy Xray Absorptiometry
What is a limitation of a DEXA scan?
X-ray exposure
What does Air plethysmography measure?
Air in place of water (weighing), how much air is displaced instead of water
What type of fat does a skinfold caliper measure?
Subcutaneous
What impedes allowing for a Bioelectrical scale to measure body fat %?
Fat
What is one issue with Bioelectrical impedance that shows higher fat %?
Being dehydrated
What are 3 sports where gat doesn’t inhibit performance?
Sumo, Swimming, Weight lifter
Fat- free mass including muscle is bad for what type of performance?
Aerobic
What are 3 issues with losing weight rapidly?
Dehydration
Chronic Fatigue
Injury
What is the female athlete triad?
- Eating disorder
- Menstrual- amenorrhea
- Bone disorder
What classifies Men at being obese?
Men < 25% body fat?
What classifies women as being obese?
> 35 % body fat
How are 2-5 year olds decreasing overweight prevalence?
- Parents more aware of what they are eating
- Allergies
By the age of 35 what is the average weight gain?
35lbs
What are 3 factors that affect weight gain?
- Hormones
- Appetite
- Energy Expenditure
What are 3 ways the body regulates weight gain?
RMR, TEM, TEA
What are 3 physiological factors that affect weight gain?
Hereditary
Hormonal
Altered homeostasis
What are 3 lifestyle factors that affect weight gain?
Cultural
Physical Activity
Diet
What does Android obesity increase risk for in men?
CVD
Elevated Blood lipids
Diabetes
