Helmet Ventilation During Self-Paced Walking Test

Chronic obstructive pulmonary disease (COPD) is characterized by persistent airflow limitation with chronic inflammation of the respiratory system. Symptoms of COPD may contribute to activity restriction, deconditioning and exercise intolerance. Non-invasive positive pressure ventilation (NIPPV) has been shown to improve exercise intolerance and health-related quality of life in patients with severe COPD. Helmet ventilation (HV) is a new option for NIPPV to alternative to nasal or face mask. A study which published on JAMA demonstrated the feasibility and benefits of HV. The aim of this study is to investigate the use helmet ventilation (HV) in walking test and analysis of effect patients with COPD.