Term
| Essential Body Fat (know levels in men & women) |
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Definition
| essential fat protects nerves, brains, heart, and mammary gland; 3% for men and 8-12% for women |
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Term
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Definition
| 5% for men and 12% for women |
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Term
| What are the symptoms of the female athlete triad? |
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Definition
| amenorrhea- start losing menstration, loss of body mass (irreversible) |
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Term
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Definition
| energy intake is less than energy expenditure |
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Term
| Obesity - What are the reasons for this epidemic? |
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Definition
| diet and exercise; people becoming more seditary and eating bigger portion sizes |
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Term
| Define obesity by body fat percentages and BMI |
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Definition
| body mass - 39> would be obesity for women and 25> would be obesity for men |
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Term
Assessing Body Fat
- what are the ways to assess body fat (which is most accurate?) |
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Definition
*weight management - too finicky; changes in time of day, amount of liquid or food in system
*body mass index - most important
*skinfold - assumed 50% subcutaneous fat, not always accurate
*Hydrostatic- underwater weighing
*Bioelectrical impedence - machine that tells weight from impulses shut from one hand to another
*DEXA scan - for bone mass but works
*mesasuring waist- just tells you if you are in healthy range |
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Term
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Definition
18> is underweight
18-25 is considered desirable
25-30 is overweight
30-35 is obesity class I
35-40 is obesity class II
40< obesity class III (morbidly obesity) |
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Term
| Diseases Associated With High/Low BMIs |
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Definition
high values put you at risk for CVD, diabetes, cancer, etc
low values put you at low risk for everything but osteoporosis |
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Term
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Definition
height/weight
kg/m2
(lb/in2) x 703 |
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Term
| What limitations exist with the BMI? |
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Definition
| Don't take in account for muscles |
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Term
| How does a machine measure body fat with bioelectrical impedance? |
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Definition
| sends electrical signals from one arm to another and picks up how long it takes to pass thru body |
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Term
| What limitations exist using the skinfold technique to measure body fat? |
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Definition
| assumes that 50% subcutaneous fat but not always correct |
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