If you have not signed up for the NASM FNS yet, you can do so here to save 20%.
If you are unsure which nutrition certification is right for you, I recommend that you take the quiz or check out my article on the top nutrition certifications. This is especially true because the FNS is slightly out of date.
Important definitions to memorize for chapter 9 of the NASM FNS
Android obesity ~ Excess storage of fat situated primarily within the abdominal cavity
Appetite ~ A psychological need to eat that is associated with the pleasant sensations typically related to food
Basal Energy Expenditure (BEE) ~ The basal metabolic rate (BMR) scaled to twenty-four hours. typically used interchangeably with REE
Basal metabolic rate (BMR) ~ A clinical calculation of resting energy expenditure performed upon waking up, ten to twelve hours after ingestion, and twelve to eighteen hours after any significant physical activity. usually used interchangeably with RMR
Bioelectrical Impedance Analysis (BIA) ~ Technique to estimate amounts of total body water, lean tissue mass, and total body fat. It uses the resistance of tissue to the flow of an alternating electrical current
BOD POD ~ a tool used to measure the density of the body based on the amount of air displaced as someone sits in a sealed chamber of known volume
Body Composition ~ The chemical or anatomical composition of the body. Most commonly, this is defined as the proportions of fat, muscle, bone, and other tissues within the body
Body Dysmorphic Disorder (BDD) ~ A disorder of eating in which a distressing and impairing preoccupation with an imagined or slight defect in appearance happens to be the primary symptom
Body Fat Distribution ~ The pattern of fat distribution in the body
Body Image ~ an individual’s mental construct of his or her physical appearance, created from many various influences
Body Mass Index (BMI) ~ the body’s weight (in kilograms) divided by the square height (in meters), expressed in units of kg/m2. additionally known as the Quetelet index
Bomb Calorimeter ~ a tool that uses the heat of combustion to measure the energy content of food accurately
Calorimeter ~ a tool used to measure quantities of heat generated by numerous processes
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Calorimetry ~ The measuring of the quantity of heat given off by an organism. it is used to determine total energy expenditure
Densitometry ~ A method for estimating body composition from the measurement of total body density
Direct calorimetry ~ Determination of energy use by the body by measuring the heat discharged from an organism enclosed in an exceedingly small insulated chamber enclosed by water. The rise in the temperature of the water is directly related to the energy utilized by the organism.
Doubly labeled Water ~ a technique for measuring daily energy expenditure over extended periods, usually seven to fourteen days, whereas subjects live in their usual environments. Small amounts of water that are isotopically tagged with deuterium and oxygen-18 (2H2O and H218O) are eaten. Energy expenditure can be calculated from the difference between the rates at that the body loses each type of isotype.
Energy ~ The capability to do work. The energy in food is a form of chemical energy that the body converts to mechanical, electrical, or heat energy.
Energy Balance ~ The balance within the body between amounts of energy consumed and exhausted
Energy Equilibrium ~ A balance of energy intake and output that leads to very little or no change in weight over time
Energy Intake ~ The caloric or energy content of food provided by the sources of dietary energy: carbohydrate (4 kcal/g), protein (4 kcal/g), fat (9 kcal/g), and alcohol (7 kcal/g)
Energy Output ~ the employment of calories or energy for basic body functions, physical activity, and processing of consumed foods
Extreme obesity ~ obesity is characterized by body weight surpassing 100% of normal; a severe condition usually requires surgery.
Ghrelin ~ A peptide hormone made by the stomach that stimulates feeding, generally known as the “hunger hormone.”
Gynoid obesity ~ Storage of fat placed primarily within the buttocks and thighs. Additionally known as gynoid obesity
Hunger ~ the internal, physiological drive to seek out and consume food. Not like appetite, hunger is sometimes experienced as a negative sensation, usually manifesting as an uneasy or painful sensation; the recurrent and involuntary lack of access to seek out that food may produce deficiency disease over time.
Underwater weighing ~ determining individual body density by measuring the amount of water displaced once the body is submerged in a specialized water tank. Additionally known as hydrostatic weighing
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Hypothalamus ~ a section of the brain involved in the regulation of hunger and satiation, respiration, body temperature, water balance, and other body functions
Indirect calorimetry ~ Determination of energy use by the body while not directly measuring heat production. Strategies include gas exchange, the measurement of oxygen uptake and/or CO2 output, and also the doubly labeled water method.
Isotopes ~ forms of an element in which the atoms have the same number of protons but completely different numbers of neutrons
Lean Body Mass ~ The portion of the body exclusive of stored fat, together with muscle, bone, connective tissue, organs, and water
Leptin ~ A hormone created by fat cells that signal the amount of body fat content and influence food intake; generally known as “satiety hormone.”
Negative Energy Balance ~ Energy intake is less than energy expenditure, leading to a depletion of body energy stores and weight loss.
Negative Self-Talk ~ Mental or verbal statements made to one’s self that reinforce negative or harmful self-perceptions
Neuropeptide Y (NPY) ~ A neurochemical widely distributed throughout the brain and peripheral nerve tissue. NPY activity has been connected to feeding behavior, depression, anxiety, and cardiovascular performance
Obesity ~ BMI at or above thirty kgm2
Overweight ~ BMI at or above 25 kg/m2 and fewer than 30 kg/m2
Positive Energy Balance ~ Energy intake exceeds energy expenditure, leading to a rise in body energy stores and weight gain
Resting Energy Expenditure (REE) ~ The minimum energy required to maintain basic physiological functions (e.g., heartbeat, muscle, respiration). The resting rate of metabolism (RMR) is extrapolated to twenty four hours. typically used interchangeably with BEE
Resting metabolic rate (RMR) ~ A clinical measurement of resting energy expenditure performed 3 to four hours once ingestion or undergoing significant physical activity. typically used interchangeably with basal metabolic rate
Satiation ~ Feeling of satisfaction and fullness that terminates a meal
Satiety ~ the results of a food or meal that delay consequent intake. a sense of satisfaction and fullness following ingestion that quells the need for food
Total Body Water ~ All of the water within the body, as well as intracellular and extracellular water and water within the urinary and GI tracts
Total Energy Expenditure (TEE) ~ the whole of the resting energy expenditure (REE), energy utilized in physical activity, and energy utilized in processing food (TEF), which is typically expressed in kilocalories per day
Underwater weighing ~ determining individual body density by measuring the amount of water displaced once the body is submerged in a specialized water tank. additionally known as hydrostatic weighing
Very Low Calorie Diets (VLCD) ~ Diets supplying 400 to 800 kilocalories per day that include adequate high-quality dietary protein, very little or no fat, very little sugar
Waist Circumference ~ The waist measure, as a marker of abdominal fat content, can be used to indicate health risks, possibly
Weight cycling ~ perennial periods of gaining or losing weight. additionally known as yo-yo dieting
Weight Management ~ The adoption of healthful and sustainable ingestion and exercise behaviors that scale back illness risk and improve well-being
Underweight ~ BMI less than 18.5 kg/m2
Binge ~ Consumption of a really large amount of food in an exceedingly short time (e.g., 2 hours) often accompanied by a loss of management over how much and what is consumed.
Binge Eaters ~ people who habitually consume a very great amount of food in a very short amount of time (e.g., 2 hours) and lose the ability to control what quantity and what’s eaten
Binge-Eating Disorder ~ an eating disorder marked by recurrent episodes of binge intake and a sense of loss of control. The diagnosis relies on an individual’s having a median of at least 2 binge-eating episodes per week for 6 months.
Hypercellular obesity ~ obesity because of an above-average number of fat cells
Restrained Eaters ~ people who habitually avoid food as long as possible and then gorge on food.
Sleep Apnea ~ Periods of the absence of respiration throughout sleep
Tyler Read
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