**EXAM1- Skinfold Testing Flashcards
skinfold testing
measures the amount of subcutaneous fat + assumes that subcutaneous fat is proportional to total body fat
subcutaneous fat
adipose tissue deposited directly underneath the skin
calipers should deliver how much force
10 g/mm^2
drawbacks of skinfold testing
-accuracy
-difficult to master technique
standard error of skinfold testing
5%
if calipers are too strong…
measurement is low
if calipers are too weak…
too high of a measurement
3 assumptions of skinfold testing
-skinfold is a good measure of subcutaneous fat
-the distribution of fat (subcutaneous vs internal) is similar for all individuals within each sex
-there is a LINEAR relationship between the sum of skinfolds + body density
skinfold measurements are taken on what side of the body
right side
calipers should be ____ from the thumb + index finger
1 cm
standardized skinfold sites have how many sites
9
-2 more than the common 7-site skinfold
what are the 2 sites included in standardized skinfold but not the common 7-site skinfold
-biceps
-medial calf
standardized skinfold sites
-triceps
-biceps
-chest/pectoral
-medial calf
-midaxillary
-subscapular
-suprailiac
-thigh
common 7-site skinfold sites
-abdominal
-triceps
-chest/pectoral
-midaxillary
-subscapular
-suprailiac
-thigh
abdomen
2 cm to right side of umilicus
abdomen fold
vertical
triceps
posterior midline of upper arm, halfway between acromion + olecranon processes
triceps fold
vertical
triceps- what is important in protocol
make sure subject’s arm is relaxed + held freely on the side
chest- men
½ distance between anterior axillary line + nipple
chest- women
1/3 distance between anterior axillary line + nipple
chest fold
diagonal
midaxillary
-ask subject to move arm back or raise it up
-locate midaxillary line at the level of xiphoid process of sternum
midaxillary fold
vertical
subscapular
-ask subject to put arms behind his/her back to help locating sites
-locate scapula + pinch 1-2 cm below inferior angle of scapula
subscapular fold
diagonal
suprailiac
-ask subject to locate iliac crest (hip bone) for you
-taken immediately superior to the iliac crest (in line with natural angle of iliac crest) at anterior axillary line
suprailiac fold
diagonal
thigh
-ask subject to shift body weight to left leg, + have right knee slightly flexed + right leg totally relaxed
-locate anterior midline of thigh
-taken halfway between PROXIMAL patella + inguinal crease (hip)
thigh fold
vertical
