<qa>  How long will the study last?The study will last for 8 months. This study consists of a baseline visit of and return visits at week 9, week 16, week 24, and week 32. At the week 9 visit the subject will be given an individualized exercise plan which will be carried out over the next 24 weeks. The subject will be asked to return for three more visits at week16, week 24 and week 32. The 24 week training period will involve 3 workouts a week approximately 15-30 minutes each. It will also involve a breathing exercise that the subject can do at home twice daily for 10-15 minutes per session. The study visits will include the exercise plan, physical exam, blood draw and questionnaires. 