[American Thoracic Society American Thoracic Society 2012 International Conference, May 18-23, 2012 • San Francisco, California - ()] A107. ASSESSMENT, EXERCISE TRAINING AND OUTCOMES - The Use Of A Home-Based Exercise Program Using A Commercially Available Interactive Computer System In Patients With Moderate To Severe COPD: Its Feasibility And Effect On Exercise Performance, Physical Activity, Dyspnea And Health-Related Quality Of Life