1. YOUR LOGO HERE Illinois State University Assessment of Body Composition l 1. Chemical analysis of cadavers. l Most accurate l Can only pre-test l Tough finding volunteers

2. YOUR LOGO HERE Illinois State University Assessment of Body Composition l 2. Hydrostatic weighing. –Land weight – Residual Volume and GI volume – Water weight – Archimedes’ principle – Density – Percent fat. – + 2 percent error.

3. YOUR LOGO HERE Illinois State University Assessment of Body Composition l 3. Skinfold assessment. l Subcutaneous fat l Site specific measurements l Population specific equations – Jackson, Pollock, Wilmore – Lohman – Yuhaz l + 3-4 percent error

4. YOUR LOGO HERE Illinois State University Assessment of Body Composition l 4. Body Mass Index l wt (kg)/ht 2 (m) l Normal = < 25 men; < 27 women l Moderately obese = 25-30 men; 27-30 women l Massively obese = 30-40 either l Morbidly obese = > 40.

5. YOUR LOGO HERE Illinois State University Assessment of Body Composition l 5. Bioelectric Impedance Analysis l Electrical current l Total body water volume l Body density l Fat mass l +3-20 percent error (depending on equation)

6. YOUR LOGO HERE Illinois State University Concerns of Assessment: l Confidentiality l Accuracy l Purpose l Over-emphasis