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Assessment of Body Composition Laboratory II - Lab Manual | NUTR 442, Lab Reports of Nutrition

Material Type: Lab; Professor: Gee; Class: Nutrition Assessment Laboratory; Subject: Nutrition; University: Central Washington University; Term: Spring 2006;

Typology: Lab Reports

Pre 2010

Uploaded on 08/19/2009

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NUTR 442 - NUTRITION ASSESSMENT LABORATORY
EXPERIMENT 3 - ASSESSMENT OF BODY COMPOSITION LABORATORY II
OBJECTIVE: To give students the experience in collecting and analyzing
anthropometric and bioelectric impedance data useful in the determination
of body composition. In addition, students will learn to calculate body
composition using data from hydrodensitometry.
PRE-LABORATORY PREPARATION:
1. Read this document carefully before your laboratory period. It will help prevent you
from making mistakes, speed up your work, and prepare you for asking any questions
about procedures that need clarifying.
2. Dress appropriately for this laboratory. For skinfold thickness measurements, we will
need access to the top of your shoulder, tip of the elbow, tricep, bicep, the scapula on
your back, area just above the top of your pelvis. If direct measurement on your skin is
not desirable for certain sites, try to wear thin and lightweight garments. For BIA
measurements, we need to have access to the skin on the back of your hand/wrist as well
as the top of your foot and ankle. For accurate determination of body composition as
assessed by BIA, you need to be normally hydrated and have a normal body temperature.
That means that you should not exercise that morning, drink plenty of fluids, and not eat
for at least two hours prior to lab.
DATA TO BE COLLECTED:
1. Gender
2. Age
3. tricep skinfold thickness
4. bicep skinfold thickness
5. subscapular skinfold thickness
6. suprailiac skinfold thickness
7. Bioelectric resistance value
8. Body weight (kg)
9. Height (inches)
DETERMINE THE FOLLOWING:
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NUTR 442 - NUTRITION ASSESSMENT LABORATORY

EXPERIMENT 3 - ASSESSMENT OF BODY COMPOSITION LABORATORY II

OBJECTIVE: To give students the experience in collecting and analyzing anthropometric and bioelectric impedance data useful in the determination of body composition. In addition, students will learn to calculate body composition using data from hydrodensitometry. PRE-LABORATORY PREPARATION:

  1. Read this document carefully before your laboratory period. It will help prevent you from making mistakes, speed up your work, and prepare you for asking any questions about procedures that need clarifying.
  2. Dress appropriately for this laboratory. For skinfold thickness measurements, we will need access to the top of your shoulder, tip of the elbow, tricep, bicep, the scapula on your back, area just above the top of your pelvis. If direct measurement on your skin is not desirable for certain sites, try to wear thin and lightweight garments. For BIA measurements, we need to have access to the skin on the back of your hand/wrist as well as the top of your foot and ankle. For accurate determination of body composition as assessed by BIA, you need to be normally hydrated and have a normal body temperature. That means that you should not exercise that morning, drink plenty of fluids, and not eat for at least two hours prior to lab. DATA TO BE COLLECTED:
  3. Gender
  4. Age
  5. tricep skinfold thickness
  6. bicep skinfold thickness
  7. subscapular skinfold thickness
  8. suprailiac skinfold thickness
  9. Bioelectric resistance value
  10. Body weight (kg)
  11. Height (inches) DETERMINE THE FOLLOWING:
  1. Body fat % by skinfold method of Durnin & Womersley (table 6.10, p193) (strive to adjust your technique so that the % body fat as assessed using the skinfold method is similar to that assessed using hydrodensitometry.
  2. Body fat % by bioelectric impedance using the equation of Lohman (1992) Young women ( (18-29) FFM(kg) = 0.476(HT^2 cm/R) + 0.295(BWkg) + 5. Young men FFM(kg) = 0.485(HT^2 cm/R) + 0.338(BWkg) + 5. Note: this equation calculates Fat Free Mass. Calculate Fat Mass and % Body Fat
  3. Body fat % by BIA using the NHANES equations (see Powerpoint notes) Note: this equation calculates Fat Free Mass. Calculate Fat Mass and % Body Fat
  4. % Body fat from hydrodensitometry data (show calculations from raw data)
  5. Body mass index
  • Personally collect the data on two of your classmates. Get the data on yourself from one of your partners.
  • For each student, calculate or determine each of the above.
  • Write a brief SOAP note for each of the three students. o Compare results against hydrodensitometry values. Assess body composition values based on Table 6.11, p 201. o Comment on how these body composition assessments compare against the BMI assessment.
  • Lab papers are due one week from the date you collected your data.