OBJECTIVE: To determine whether a long-term maintenance program after respiratory rehabilitation, in contrast to the usual minimal maintenance therapy, improves the cost-effectiveness through: a.- maintaining long term effects in terms of effort capacity, HRQL, and reduced exacerbations b.- reducing the total cost of care to patients, largely through reduction of exacerbations.

MATERIAL AND METHODS: multi-center (4 hospitals) prospective randomized controlled study that will include 150 patients with moderate-severe COPD (age <75; BODE 4-10) with a 3 years follow-up. All patients will receive an initial in-hospital rehabilitation program which includes: Education, Physiotherapy, lower and upper extremities training and respiratory muscles training. Following completion of this program, patients will undergo concealed randomization to one of two maintenance strategies:1.-an intensive maintenance program (GR1) 2.- a standard, minimal monitoring program (GR2). On the intensive maintenance program (GR1) the physiotherapist will call once a week as a reminder and the patient will attend the hospital once a week . A physiotherapist will supervise the weekly in-hospital exercise and he/she will check if the patient is properly undergoing the rehabilitation treatment.

OUTCOMES: 1.- Clinical: dyspnea (area of CRQ questionnaire), HRQL (CRQ, SF 36); Effort capacity (6minute Walking Test), BODE index; 2.- Economical: direct costs (programs); indirect costs (exacerbations, admissions); comparison of GR1 and GR2 costs; EXPECTED OUTCOMES: reduction of dyspnea, improvement of HRQL, effort capacity and BODE index, and reduction of health expenditures in GR1 compared to GR2.

Inclusion Criteria:

• COPD Patients
• Less than 77 years
• BODE index of 3-10 (BODE 3 when FEV1<50% v. Ref.).
• clinically stable (at least one month)
• Informed consent signed

Exclusion Criteria:

• Bone or muscle disease that limits the exercise training.
• Heart disease that disable physic exercise.
• Bronchiectasis or other Respiratory diseases different than COPD.
• Comorbidity that difficult o disable respiratory rehabilitation program carrying out.
• Life expectation less than 2 years.