Question: Client Information/Characteristics – Male (Caucasion – Age = 53 Year’s Weight = 188 Lb 3-site Skinfold Results – Chest = 14 Mm – Abdomen 32 Mm – Thigh = 21 Mm Calculate Body Density (Db) Of The Above Client Using The Correct Equation (pg. 69) Calculate Body Fat Percent (%BF) From Db Using The Correct Equation (pg. 59) What Is The Client’s Percentile …

Client Information/Characteristics – Male (Caucasion – Age = 53 Year’s Weight = 188 lb 3-site Skinfold Results – Chest = 14 mm – Abdomen 32 mm – Thigh = 21 mm Calculate Body Density (Db) of the Above Client Using the Correct Equation (pg. 69) Calculate Body Fat Percent (%BF) from Db Using the Correct Equation (pg. 59) What is the client’s percentile and normative category? The client indicates that he wishes to improve his body composition. In an effort to determine a realistic outcome for body composition, calculate his Goal Body Weight (Lb) for the desired body fat of 20% (pg. 74). 69 Chapter 4 Body Composition Box 4.3 Generalized Skinfold Equations (5,8) Men Seven-Site Formula (chest, midaxillary, triceps, subscapular, abdomen, suprailiac, and thigh) Body density = 1.112 -0.00043499 (sum of seven skinfolds) + 0.00000055 (sum of seven skinfolds)? -0.00028826 (age) (SEE 0.008 or ~3.5% fat] Three-Site Formula (chest, abdomen, and thigh) Body density = 1.10938 -0.0008267 (sum of three skinfolds) + 0.0000016 (sum of three skinfolds)2 -0.0002574 (age) (SEE 0.008 or -3.4% fat] Three-Site Formula (chest, triceps, and subscapular) Body density = 1.1125025 -0.0013125 (sum of three skinfolds) + 0.0000055 (sum of three skinfolds)2 -0.000244 (age) (SEE 0.008 or ~3.6% fat] Women Seven-Site Formula (chest, midaxillary, triceps, subscapular, abdomen, suprailiac, and thigh) Body density = 1.097 -0.00046971 (sum of seven skinfolds) + 0.00000056 (sum of seven skinfolds)2 -0.00012828 (age) (SEE 0.008 or ~3.8% fat] Three-Site Formula (triceps, suprailiac, and thigh) Body density = 1.099421 -0.0009929 (sum of three skinfolds) + 0.0000023 (sum of three skinfolds)2 -0.0001392 (age) (SEE 0.009 or ~3.9% fat] Three-Site Formula (triceps, suprailiac, and abdominal) Body density = 1.089733-0.0009245 (sum of three skinfolds) + 0.0000025 (sum of three skinfolds)2 -0.0000979 (age) (SEE 0.009 or ~3.9% fat] SEE, standard error of estimate. 59 Chapter 4 Body Composition TABLE 4.1 Population-Specific Formulas for Conversion of Body Density to Percent Body Fat Population FFBda (g.cm-3) Gender %BF Siri Brozek Ethnicity GENERAL GENERAL African American Age Adult Adult 9-17 19-45 24-79 18-62 18-60 18-48 American Indian Asian Japanese Native 61-78 Singaporean (Chinese, Indian, Malay) Caucasian 8-12 13-17 M/F M/F Women Men Women Men Women Men Women Men Women Men Women Men Women Men Women Men Women Men Women Men Women Men Women Men Women Men Women Women (495/Db) – 450 (457/Db) – 414.2 (5.24/Db) – 4.82 (4.86/Db) – 4.39 (4.86/Db) 4.39 (4.97/Db) – 4.52 (4.81/Db) – 4.34 (4.97/Db) – 4.52 (4.76/Db) – 4.28 (4.87/Db) – 4.41 (4.95/Db) – 4.50 (4.94/Db) – 4.48 (4.84/Db) – 4.37 (5.27/Db) – 4.85 (5.27/Db) – 4.85 (5.12/Db) – 4.69 (5.19/Db) – 4.76 (4.95/Db) – 4.50 (4.96/Db) – 4.51 (4.97/Db) – 4.52 (5.02/Db) – 4.57 NA (4.87/Db) – 4.41 (5.21/Db) – 4.78 (4.97/Db) – 4.52 (5.03/Db) – 4.59 (4.95/Db) – 4.50 (5.12/Db) – 4.68 (4.97/Db) – 4.52 (4.96/Db) – 4.51 ? ? 1.088 1.106 1.106 1.099 1.108 1.099 1.111 1.105 1.100 1.102 1.107 1.086 1.086 1.092 1.090 1.100 1.101 1.099 1.098 NA 1.105 1.089 1.099 1.097 1.100 1.093 1.099 1.101 18-59 60-90 Hispanic 20-40 Athletes Resistance trained Endurance trained 24 + 4 35 + 6 21 + 2 21 + 4 18-22 18-22 15-44 All sports Clinical Anorexia nervosa populations Cirrhosis Childs A Childs B Childs C Obesity Spinal cord injury (paraplegic/ quadriplegic) 1.084 1.078 1.070 1.100 1.116 1.114 17-62 18-73 18-73 (5.33/Db) – 4.91 (5.48/Db) – 5.08 (5.69/Db) – 5.32 (4.95/Db) – 4.50 (4.67/Db) – 4.18 (4.70/Db) – 4.22 Women Men Women