Chapter 9 Learning Objectives Flashcards
What is the trend in obesity within the United States?
68 percent of americans are either overweight or obese.
Body Mass Index (BMI)
Weight relative to height
What is normal weight, under weight, overweight and obese as defined by BMI?
Under weight: lower than 18.5
Normal weight: 18.5 - 25
Overweight: 25 - 29
Obesity: 30 and over
Subcantaneous Fat
Fat underneath the skin
Viceral Fat
Fat in the abdominal reigon
How is viceral fat measured?
By measuring your waist
How does the amount and location of body fat effect the health risks associated with being overweight?
Fat around the abdominal reigion serves a risk to the internal vital organs.
What is the main type of lifestyle that has lead to weight gain in the United States?
Eating more and moving less
What are the principles of energy balance?
?
What are the 3 components of energy expenditure?
Basal Metabolic rate [the minimal amount of energy required to live]
Physical Activity [planned activity + NEAT(non planned exercise activity throught the day)]
Thermic Effect of Foods [Digestion absorption, metabolism, and storage of nutrients]
Discuss “set point” in regards to weight status.
Body’s adjustments for changes in exercise, energy intake to maintain weight at particular level
How do hormones regulate body fat levels or appetite?
Feeling Full: due to the release of the hormone peptide YY
Feeling hungry: due to the release of the hormone Ghrelin.
Staying Full: due to the release of the hormone Leptin.
What type of weight and medical history determines whether weight loss is recommended or not?
A BMI greater than or equal to 30 and a waist line greater than 35 in women and 40 in men.
What are the goals and guidelines of a healthy weight loss plan?
Decrease energy intake,
Increase physical activity,
Modify behavior
consume nutrient dense food
What are the recommended rates and amount of weight loss?
5-15% of body weight loss is recommended
.5-2lbs per week.
