Energy Balance Flashcards Preview

Nutrition > Energy Balance > Flashcards

Flashcards in Energy Balance Deck (28)
Loading flashcards...

What's the difference between positive energy balance and negative energy balance?

positive energy balance is weight gain (energy = calories)
while negative energy balance is weight loss


What's the difference between hunger and appetite?

hunger is driven by a physiological (internal) drive to eat, while appetite is a psychological (external) drive to eat (craving)


What is leptin, and what affect does leptin have on desire to eat?

A hormone produced by the adipose tissue that decreases. desire to eat


Is hunger or appetite most likely to cause overeating?



What are some examples of external (psychologic) influences that disrupt our ability to identify when to stop eating?

sight, smell and taste of food, presence of others and setting of meal, anxiety or stress, climate, memories, free food, size of plates or packaging


What are the three components of total energy expenditure? (energy out)

physical actives, thermic effect of food, and basal metabolism


What is basal metabolism and what percentage of overall calories burned each day does it represent?

the energy (calories) burned to maintain all involuntary processes that keep the body alive. roughly 60-70% of the total calories burned each day


Which factors increase basal metabolic rate (BMR)? Which lower BMR?

Increase BMR:
periods of growth, amount of muscle, gender, fever, smoking and caffeine, hormones and extreme environment temperatures
Lowers BMR:
age, during sleep metabolic rate is at its lowest, and fasting/starving


What is the thermic effect of food and what percentage of overall calorie needs does it represent?

calories used to digest, absorb, and metabolize food nutrients

roughly 5-10% above the total basal energy used


How many calories are recommended for a non-exerciser, a moderately active person and a heavy exerciser?

25 calories if not exercising
30 calories for moderate
35 calories for heavy


Name the four methods for deterring appropriate weight.

heights/weight charts, BMI, body fat %, waist circumference


What is the limitation of the BMI as an indicator of overall health? At what BMI does health risk increase?

It doesn't take into account muscle tissue vs. fat or other health indicators

Health risk increase when BMI is greater than 25


What is the BMI for someone who is classified as overweight and obese?

overweight = 25-29.9 BMI

obese = 30 BMI


What factors should be considered when setting a healthy weight goal?

weight history and family weight history, current health status, how do your clothes fit, energy levels


Name the 5 methods of assessing body fat.

fat folds, underwater weighing, bioelectric impedance, Bod Pod, DEXA


What's the difference between android obesity and gynecoid obesity and which is associated with health problems?

Android (upper body) obesity is associated with heart disease, HTN, and Type 2 Diabetes, abdominal fat is released right into the liver

Gynecoid (lower-body) obesity is encouraged by estrogen and progesterone, after menopause upper-body obesity appears, less heath risk than upper body


What is the Set Point theory?

No matter how hard a person tries their body resists weight change and any weight loss is temporary


What are the chances a child will be obese as an adult if one parent is obese? If both parents are obese?

No obese parents: 10%
1 obese parent: 40%
2 obese parents: 80%


What are the three components of a good weight loss program?

an eating plan that is nutritionally sound and a good fit, regular exercise, and behavior component


What are the characteristics of a sound weight loss/weight maintenance diet?

must be low in calories, but not too low, contains common foods for long term success, adapted to individual's genetics, habits and tastes, permanent change with eating problems/habits, and slow and steady weight loss and improves overall health


Why don't extreme diets generally work? What are the physiologic reasons?

generally they are very low in calories or eliminate food groups and don't work in long term

body defends itself against weight loss and if calories are too low eventually metabolism is lowered


What is the recommendation for amount of regular physical activity for weight loss and why is it important for weight loss?

1 hour most days of the week

This is important because it not only increases calories burned, especially fat, but it preserves muscles


Give an example of CHAIN BREAKING

Snacking while watching T.V.

(breaking the link between two behaviors)



Replace eating due to stress with walking.

(changing your frame of mind regarding eating/physical activity)



Rehearse in advance appropriate responses to pressure of eating at parties

(forming a plan of action in response to a situation)


Give an example of SELF-MONITORING

What am I eating? Am I looking at portion sizes? Have I increased my physical activity?


What is the purpose of bariatric surgery?

losing weight by reducing the size of the stomach and/or causing malabsorption


What are the criteria qualify for bariatric surgery?

BMI is over 35 or over BMI of 30 with other health issues, psychological evaluation, and pregnancy (not planned)