Fat Loss 1

Question 1

BMI of overweight and obese

Answer 1

overweight = BMI pf 25-29.9 kg-m^2
Obese = >30 k-m^2

Question 2

what percentage of Canadians 18 years of age and older had BMI of obese

Answer 2

26.8%

Question 3

costs of obesity

Answer 3

49,000 to 60,000 Canadians die from conditions linked to excess weight each year

4.6 billion to 7.1 billion pain annually in health care and lost productivity related to obesity

Question 4

obesity causes increased risk of and decreased what

Answer 4

increased risk of morbidity, mortality and premature death

decreased quality of life

Question 5

when is weight loss recommended

Answer 5

overweight + 1 indicator of increased CV OR
obese OR
waist circumference: males > 100cm, females > 90cm
AND
client has this as a goal

Question 6

what percentage of loss of body mass is clinically significant

Answer 6

5%

Question 7

1940 Minnesota starvation experiment

• what what energy intake
• what was percent loss of weight
• what side effects were caused

Answer 7

50% decrease in E intake
24% weight loss

caused sever weakness, depression, fatigue, anemia, bradycardia, edema

decrease in thyroid hormone, reduced basal EE

Question 8

what happens when only PA is used to lose weight

Answer 8

both groups compensate with increased energy intake, particularly craving sweet foods

average what 2kg weight loss over over 6 months, most subjects didn’t loose weigh t

Question 9

other advantages of PA in weight loss

Answer 9

maximize fat loss, particularly visceral fat
minimize muscle loss
reduce risk of co-morbid conditions like CVD, diabetes, some cancers
improves psychological function

Question 10

what other effects on the body does weigh loss cause

Answer 10

increased appetite
reduction in basal EE
changes in behaviours (sleep and sit more)

Question 11

energy content of 1 lb of fat

Answer 11

3500 kcal

Question 12

energy management model:

• compensatory model
• performance model
• additive

Answer 12

additive: basal EE is unchanged
performance: basal EE is increases
compensatory: basal EE decreased

Question 13

what is energy compensation (alas metabolic adaptation)

and compensatory responses

Answer 13

reflects discrepancy between about of weight loss predicted from energy deficit and actual weight loss

compensatory responses

• increased appetite
• reduced basal EE
• behavior changes (sleep and sit more, reduced adherence)

Question 14

how many METS = 150 mins exercise /week

Answer 14

7.5

Question 15

how much PA is needed total minutes in a week and how many days to achieve clinically significant weight loss

Answer 15

225-420 mins and near daily frequency