Access to the benefits of PR may be broadened if effective exercise could be administered at home. Current evidence suggests that home-based rehabilitation interventions result in smaller benefits as judged by exercise tolerance and quality of life when compared to supervised programmes. The impact of home based rehabilitation may be limited by multiple factors including, lack of health care professional supervision and lack of support from fellow COPD sufferers. This lack of support may lead to poor adherence to prescribed exercise intensity and frequency in home programmes.