Inspiratory Muscle Training and Respiratory Electromyographic Activity in COPD

Summary

Intended to treat disorders of the respiratory muscles can use the device Threshold IMT ® through an inspiratory muscle training (IMT) that allows training of the inspiratory muscles, the chief of these being the diaphragm which is which objectified the improvement of its function . To monitor the action of the respiratory muscles can be used several tools such as manometer that aims to assess respiratory pressures, ie, the strength of respiratory muscles, or the Surface Electromyography (sEMG) that allow evaluating the electromyographic activity of muscles analyzed. From a quantitative clinical trial, randomized and blinded, composed of 45 individuals obtained by random convenience and divided into three groups, COPD participating in a pulmonary rehabilitation program (RP) which will make TMI (TGR - Trained Group Rehabilitated), COPD does not participant in a PR program (TGNR - Trained Group not Rehabilitated) and a control group composed of healthy individuals (CG) that seek to analyze the electromyographic activity of sternocleidomastoid (SCM) and diaphragm muscle strength, lung volumes and breathing patterns before and after a period of eight weeks of TMI. Manual will also be held dynamometry to compare the grip strength of the CG, TGR and TGNR only at baseline.

Hypothesis:

1. The Inspiratory Muscle Training (IMT) increases the maximal inspiratory pressure (MIP) in COPD patients regardless of whether they are enrolled in a program of pulmonary rehabilitation (PR).
2. TMI alters the breathing pattern in COPD patients regardless of whether they were entered into a PR program.
3. Patients with COPD who do not participate in a PR program have higher handgrip strength compared to patients who did not participate in a PR program.
4. There is decreased activity of the sternocleidomastoid muscle due to increased activity in the diaphragmatic muscle fibers after a period of TMI.
5. TMI in COPD patients participating in a program RP produces greater increase in MIP, the handgrip strength, improves breathing pattern and a greater reduction in the activity of the SCM muscle and diaphragm than in those who did not participate in a program RP.
6. There will be a reduction in respiratory rate, heart rate, systolic and diastolic blood pressure and increased oxygen saturation at the end of the TMI.
7. TMI reduce the degree of dyspnea reported by patients as MRC scale at the end of the training period.

Conditions

• Chronic Obstructive Pulmonary Disease

Interventions

OTHER

Inspiratory Muscle Training

Will be held inspiratory muscle training associated with a pulmonary rehabilitation program. The inspiratory muscle training is performed with a load of 40 to 50% of the muscle strength of the subjects.

OTHER

Pulmonary Rehabilitation

Pulmonary Rehabilitation consists of isotonic exercises of upper and lower limbs, 20-minute workout on cycle ergometer in standard deflation (expiration at the time of muscle contraction), is performed three times a week for eight weeks.

Sponsors & Collaborators

• University of Santa Cruz do Sul

  lead OTHER

Principal Investigators

• Dulciane N Paiva, Doctor · University of Santa Cruz do Sul

• Diogo F Bordin, Academic · University of Santa Cruz do Sul

• Dannuey M Cardoso, Master · University of Santa Cruz do Sul

• Andrea LG da Silva, Doctor · University of Santa Cruz do Sul

Study Design

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

SINGLE

Model

FACTORIAL

Eligibility

Min Age

40 Years

Max Age

80 Years

Sex

ALL

Healthy Volunteers

Yes

Timeline & Regulatory

Start

2013-08-31

Primary Completion

2014-11-01

Completion

2015-01-01

Countries

• Brazil

Study Locations