IMT in Ventilatory Muscle Metaboreflex in COPD

Status Completed

Clinical Trial Summary

This research intends to evaluate if inspiratory muscle training (IMT) reduces inspiratory muscle metaboreflex through the decrease of calf vascular resistance and increase of calf blood flow in Chronic Obstructive Pulmonary Disease (COPD).

Clinical Trial Description

Patients will be selected from the Hospital de Clinicas de Porto Alegre's COPD ambulatory, by convenience. Afterwards, patients will be submitted to pulmonary function test (spirometry) and cardiopulmonary exercise tests (incremental and submaximal), maximal inspiratory pressure evaluation and induction of the inspiratory muscle metaboreflex through venous occlusion plethysmography. Disease specific health related quality of life questionnaire (Saint George Respiratory Questionnaire) and daily life dyspnea questionnaire (Baseline Dyspnea Index and Transitional Dyspnea Index) will be administered at the first and last visit of each subject. Patients will undergo inspiratory muscle training for 30 minutes per day, 7 times a week, for 8 weeks, with Inspiratory Muscle Trainer device (PowerBreath Inc.). There will be a weekly follow up at the institution's Clinical Research Center, where maximal inspiratory pressure (PImax) and inspiratory training techniques will be reevaluated. After this period, tests of pulmonary function, questionnaires exercise tolerance and induction of the inspiratory muscle metaboreflex will be reevaluated. ;

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Outcomes Assessor), Primary Purpose: Treatment

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT01945398
Study type	Interventional
Source	Federal University of Rio Grande do Sul
Contact
Status	Completed
Phase	N/A
Start date	June 2013
Completion date	February 2015

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