Total Body Composition Methods Flashcards
The standard method; divide the weight by the height
BMI (body mass index)
What are the two compartment methods for TBCM
Hydro densitometry
Skinfold thickness
Bioelectrical impedance analysis
Air displacement Plethysmography
What are the three compartment methods
Near infrared interactance
DXA
Uses x-ray beams at two distinct levels of energy which are __________at different rates when passing through the same material
Attenuated
Total body composition is measured as proportions of what?
Water, Mineral, and Fat
The decrease in the strength of the x-ray beam as it passes through matter
Attenuated
What is the gynoid region
Hips and thigh area (pear shaped)
Fat > low density = float or sink?
Float
Bone > high density = float or sink
Sink
Name 3 of the TBC Indications
HIV patient
Obesity
Muscle weakness
Name 4 TBC limitations
Pregnancy
Over the table limit
Recent contrast administration
Radiopharmaceutical agents
What is a contraindication to DXA body composition?
Pregnancy
NHANES method for positioning
Palms down isolated from the body, feet neutral, ankles strapped, arms straight or slightly angles, face up with neutral chin
Leg region
hip joint to feet not including pelvic triangle
Arm region
separate the arms from body an intersect at the shoulder
Trunk region
inferior mandible through chest, abdomen and the pelvic triangle (pelvic triangle ROI top line horizontally centered across pelvic crest with bottom joint centered below pelvis)
lateral lines of triangle travel through femoral necks
