lab 3: body comp Flashcards
height, weight, BMI procedure
- explain assessment and receive informed consent
- using equipment available, measure height weight then calculate BMI
BMI calculations
BMI = weight (kg) / [height (m)]^2
circumference measurements
regional body circumference measures provide an estimate of body fat distribution and may provide insight into the risk of CVD and metabolic diseases
circumference measurements procedure
- explain + informed consent
- client is standing for all measurements
- measuring tape is placed on the skin surfaces (except for hip) - if they want on clothing they can, tell them to wear similar clothing the next time you do measurements
- all measurements on the right side
- landmark each site
- inferior edge of the tape should be in line with the landmark
- tape should be level around entire girth
- conduct measure from position such that you are at level with each
- take two measurements at each site to nearest 1mm (duplicate if not within 5mm of each other)
- rotate through sites to allow time for skin to regain normal texture
Circumference landmarks - abdomen
horizontal measure taken at height of iliac crest usually level of the umbilicus. should be taken at end of normal expiration
Circumference landmarks - arm
arms hang freely at sides with hands facing the thigh, a horizontal measure is taken midway between the acromion and olecranon processes
Circumference landmarks - butt/hips
feet together, horizontal measure taken at the maximal circumference of the butt. used for the hit measure in the hip to waist ratio
Circumference landmarks - calf
feet ~20 cm apart, horizontal measure taken at level of max circumference between the knee and the ankle, perpendicular to the long axis
Circumference landmarks - forearm
arms hanging at side but slightly away from the trunk and palms facing anteriorly, measure taken perpendicular to the long axis at max circumference
Circumference landmarks - hips/ thigh
standing legs ~ 10 cm apart, horizontal measure is taken at the max circumference of the hip/proximal thigh, just below the gluteal fold
Circumference landmarks - midthigh
one foot on a bench so the knee is flexed at 90 degrees, measure taken midway between the inguinal crease and the proximal border of the patella, perpendicular to the long axis
Circumference landmarks - waist
arms at side, feet together, abdomen relax, horizontal measure taken at narrowest part of the torso (above umbilicus and below xiphoid process)
circumference measurement norms (women)
very low: <70cm
low: 70-89cm
high: 90-110cm
very high: >110cm
circumference measurement norms (men)
very low: <80cm
low: 80-99cm
high: 100-120 cm
very high: >120 cm
BMI norms
underweight: <18.5
normal: 18.5-24.9
overweight: 25-29.9
obesity 1: 30-34.9
obesity 2: 35-39.9
obesity 3: >40
skinfold measures procedure
- explain and informed consent
- complete one round of skinfold before repeating to obtain the second (take 2 measures at each site)
- all measures taken on right side of body
- ensure participant is relaxed when taking measurements
- fold skin plus underlying fat between thumb and index ~8cm apart then drawn together to form a fold. take pinch 1cm above landmark
- keep calipers at right anglers (perpendicular to skinfold)
- calipers at halfway between peak and base of fold
- fully release caliper trigger + measure within 4 seconds of pinch (longer fluid displacement in tissue)
- record value to nearest 0.2mm
- calc mean of two values
Skinfold procedure at abdominal
using a vertical fold at 2cm to the right side of the umbilicus
Skinfold procedure at triceps
with he arm held freely at side of the body, using a vertical fold on the posterior midline of the upper arm, halfway between the acromion and olecranon process
Skinfold procedure at biceps
using vertical fold on the anterior aspect of the arm over the belly of the biceps muscle, 1 cm above the level used to mark the triceps site
Skinfold procedure at chect/pectoral
using a diagonal fold at one-half the distance between the anterior axillary line and the nipple (men) or one-third of the distance between the anterior axillary line and the nipple (women)
Skinfold procedure at medial calf
using a vertical fold at the maximum circumference of the calf on the midline of its medial border
Skinfold procedure at midaxillary
using a vertical fold on the midaxillary line at the level of the xiphoid process of the sternum. an alternate method is a horizontal fold taken at the level of the xiphoid/sternal border on the midaxillary line
Skinfold procedure at subscapular
using a diagonal fold (45 degree angle); 1-2 cm below the inferior angle of the scapula
Skinfold procedure at suprailiac
using a diagonal fold; in line with the natural angle of the iliac crest taken in the anterior axillary line immediately superior to the iliac crest
Skinfold procedure at thigh
using a vertical fold; on the anterior midline of the thigh, midway between the proximal border of the patella and the inguinal crease (hip)