FINAL Flashcards
anthropometric measures use three component model to assess body comp
false
to measure circumference of arm, the anatomical references to look at are
acromion process of scapula and olecranon process of ulna
one girth method to predict body fat% for woman
waist circumference (inches) and height (inches)
the anatomical reference for bi-trochanteric site for bony breadth measurement
greater trochanter of the femur, blades are firmly applied
body breadth measurement of the knee is measured with client sitting and knee flexed to 90, apply caliper to medial and lateral femoral epicondyles
true
If you know anthropometric measures such as body/age/weight, diameter measure of biiliac region, circumference of abdomen, lower ab, hip and knee, you can predict body fat %
true
Impedance is defined as the ability of an electrical current to pass through body tissues
false
dehydration state of the body misleads the BIA by overestimating body fat
true
assumptions for BIA are
- fluids conduct electricity 2. approx 73% of body water is contained in fat free mass 3. your body is a cylinder
- fat cells contain some water, therefore they conduct as well
function of fat is to
store vitamin d, store energy, protect cells, structure cells
anthropometry lab _____ body composition by ____ body density and ______ predicting body fat %
assesses, calculating, estimating
essential fat is the type of fat necessary to sustain life, it is store inside and between muscle fibers
false (non-essential fat store between muscles)
as the sum of skin folds increases, the density of the body increases
false
to check whether you are grasping the muscle when measuring a skin fold thickness, you may ask them to contract
true
after lifting the skin fold, you should continue holding skin fold while reading caliper
true
the skin fold accurately measure visceral fat
false
skin fold thickness measurement measures 1 layer of skin and subcutaneous fat
false (measures 2 layers of skin and subcutaneous fat)
when you make a fold, your thumb and your finger should be 3 inches
true
During, Womersley estimates body fat by calculating the sum of biceps, triceps, subs cap, and suprailliac
true
abdominal skin fold from standardized sites is a vertical fold taken 2cm lateral to umbilicus
false (horizontal fold- jackson vertical)
The components of body composition that can be determined using skin fold measurements and equations
two components- fat mass and fat free mass
which of the following methods may be used to check the calibration of a skin fold caliper
use a calibration bar, if it reads the correct size of the bar, it is correct
Measuring skin fold thickness at multiple sites provides good measure of subcutaneous fat reflects what measurement concept?
validity of skin fold method (accuracy)
hydrodensitometry uses underwater weighing method from air volume displaced by the body when fully submerged
false (water)
body fat is calculated from body density using densitometry method- 2 component model to assess body composition
true
the archimedes principle describes that the buoyant force is equal to the weight of the displaced water
true
to evaluate _____ of the test, you will have to have another person measure the same client
objectivity
air displacement (bod pod) follows poisson’s law because of the isothermal condition that the chamber creates
false
body density from our hydrostatic weighing lab is calculated by the body weight measured in the air minus the body weight measured in the water divided by the density of water
false ( this principle calculates body volume)
_____ describes the amount of air trapped in lungs after a maximal expiration
residual volume
the assumed amount of gas trapped in the gastrointestinal system when you use hydrostatic weighing method to assess body composition is approximately
0.1L
It is assumed that proportions of components in fat free mass varies from person to person when using densitometry
false (relatively consistent from person to person)
adiabatic conditions describe when the temperature of air does not remain constant as the volume changes
true
using Bod Pod, body volume can be overestimated if there is a greater body surface area from lots of hair
false (?)
when using bod pod height and weight are necessary to calculate body surface area
true
using bod pod estimated % body fat is calculated based on the siri equation and two component model
true
bod pod uses new equation to calculate body volume from raw body volume. what factors influence this measurement?
- thoracic lung volume
- lots of puffy hair
- wearing warm clothes
(does not affect, total body mass)
when all the conditions are the same, if underwater weight is measured higher than actual, the estimated body fat % will be lower than the true value
true
using DXA we can identify android and gyroid body fat distribution
true
DXA is based on the principle that weakening of x-ray energies vary
true
when using bod pod, height and weight are needed to calculate body surface area
true
what affect will excess clothing have on %body fat measure?
will under predict body fat percentage
female client, 30 years old, 85.6 kg body weight, 167.2 cm height, 35% body fat. current lean body mass is?
if she reduces to 28%, what is her target weight?
55.6 kg, 77.3
to evaluate _____ you will measure the same client of DXA
validity
air displacement plethysmography technique using bod pod follows boyle’s law because of the isothermal condition that the chamber creates
false (abiotic conditions)
_____ describes the amount of air trapped in lungs after maximal expiration
residual volume
isothermal condition describes when the temperature of air does not remain constant as the volume changes
false
during pnf stretching, contraction of the agonist muscle is designed to activate which sensory organ and cause which reflex action
golgi tendon organ, causes reflex muscle relaxation
myotatic stretch reflect, and reflex action
golgi tendon organ, causes reflex muscle contraction
according to american diabetes association, fasting plasma glucose level 125 mg/dl is considered to be
diabetes
according to national cholesterol education program, total cholesterol and HDL ratio of 3.3 for men is considered to be
half of the risk for heart disease
which of the following describes proper disposal of used cholestech cassettes
disposed in the red biohazard bag
which of the following is a healthy or desirable, level for total cholesterol
<200 mg/dL
measurements of lung volumes are corrected from ____ condition to ___ condition when using spiropet dry spirometry
ATPS, BTPS
which of the following are dynamic measure of lung function
FEV 1.0, MVV
when measuring FVC the client must
maximally inspire, blast out air hard/fast, continue exhaling till cannot expel anymore
the bell factor on the 8L spirometer is 41.45. What does this mean?
height of spirometer (1mm) converted to 41.45 ml
spirometry is used to measure
pulmonary flow rates, lung volumes
