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Chapters 2 & 9~ Body Composition Explained
Chapters 2 & 9~ Body Composition Explained
Chapters 2 & 9~ Body Composition Explained
Chapters 2 & 9~ Body Composition Explained
Chapters 2 & 9~ Body Composition Explained
Chapters 2 & 9~ Body Composition Explained
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Chapters 2 & 9~ Body Composition Explained

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  • 1. BODY COMPOSITION
  • 2. Pre-test and site location: <ul><li>Weigh the participant on scale with shoes off. Record weight to nearest 0.1 lb </li></ul><ul><li>Measure and mark the 3 skin fold sites using location instruction below. Be sure to mark on RIGHT side of body. </li></ul><ul><li>Men: Chest, Abdomen, Thigh Women: Triceps, Supraillium, Thigh </li></ul><ul><li>Skin fold sites and descriptions: </li></ul><ul><li>Abdominal : Vertical fold 2 cm to right of umbilicus (men only). </li></ul><ul><li>Triceps : Vertical fold on posterior midline of arm, halfway between acromion and olecranon processes. Arm should be held freely at side of body (women only). </li></ul><ul><li>Chest : Diagonal fold one-half distance between anterior axillary line and nipple (men only) </li></ul><ul><li>Suprailiac : diagonal fold (45 degree angle) in line with natural line of iliac crest, taken at anterior axillary line immediately superior to iliac crest (women only). </li></ul><ul><li>Thigh : Vertical fold on anterior midline of thigh, midway between proximal border of patella and inguinal crease (men and women). </li></ul>
  • 3. Figure 1. Anatomical site location <ul><li>Data Collection Procedures: </li></ul><ul><li>Pinch site with your left thumb and forefinger. Roll to ensure you have only skin and subcutaneous tissue. </li></ul><ul><li>Hold calipers in your right hand, open the jaws, and place heads 1 cm away from your pinch. Placement should be ‘as deep as the pinch is wide’. </li></ul><ul><li>Maintain the pinch with your finger and thumb as you allow caliper reading to stabilize. </li></ul><ul><li>Read within 1-2 seconds – no longer </li></ul><ul><li>Record measurement to nearest 0.5 mm </li></ul><ul><li>Rotate through the sites to allow skin to stabilize </li></ul><ul><li>Take duplicate measurements at each site. If readings are more than 1 mm apart, take a third measurement, and record. </li></ul>Suprailiac Triceps Abdomen (but use vertical fold!) Thigh Chest
  • 4. Data Reduction and Consultation Procedures: <ul><li>Enter all skin fold measurements into excel spreadsheet. </li></ul><ul><li>The program uses the Jackson and Pollock equations for men and women and calculates percent fat, fat weight and fat-free weight. </li></ul><ul><li>Record the percentage body fat, fat weight and fat-free weight on the form in the space provided. Refer to TABLE 1 (ACSM tables 4-3 and 4-4) for norms (percentile rank) and standards (risk stratification). Record this information on the form. </li></ul><ul><li>Discuss with your participant his/her results and body composition goals. </li></ul><ul><li>Determine a range for goal percentage body fat. If a subject is currently at the 50th percentile, you might suggest the percentage fat equivalent to the 60th percentile. </li></ul><ul><li>Calculate a range of goal weight based on the goal percentage body fat, using the following formula. Noah can enter this formula on the excel spreadsheet as well. </li></ul><ul><li>Goal body weight = Fat-free weight / (1.0 – goal % fat as decimal) </li></ul><ul><li>http:// www.uoregon.edu/~eatr/student/ft/ftbc.html </li></ul>
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