<qa>  What is the BMI for age and gender?- Subjects must have a BMI 95th percentile for age and gender using the CDC data see Appendix, but must weigh less than 300 pounds 136 kilograms when measured during the initial physical exam at week 0 Baseline. BMI will be calculated as follows; weight in kilograms height in meters2. This cutoff has been established due to the weight-bearing limits of the table used in performing the DXA scan. Once enrolled, if a subjects weight progresses above 300 pounds, she may continue in the study whether it is possible to perform DXA or not. 