Patients diagnosed with COPD aged less than 75 years BODE index of 3-7 clinical stability, understood as not having an exacerbation (*) of the COPD and not require treatment with antibiotics, corticoids systemic and/or hospitalization, at least 1 month prior to inclusion in the study. You have been reported to the subject and has been given sufficient time and opportunity to consider their participation has given its consent in writing. Able to use technology the subject is willing and is able to meet all the requirements of the study.