NCT01223807

Brief Summary

Diaphragmatic dysfunction and alterations of thoracoabdominal motions are common in patients with chronic obstructive pulmonary disease (COPD). Several studies have described an impairment in diaphragmatic mobility of COPD patients compared to age matched control subjects and it has been associated with increase in dyspnea, exercise intolerance and mortality. COPD patients also experiment a higher activity of the accessory breathing muscles, which greatly increases the work of breathing and dyspnea sensation. Breathing strategies have been considered an important component of pulmonary rehabilitation and refer to a range of techniques, including/which includes the diaphragmatic breathing (DB). The principal aim of DB is to improve the participation of the abdominal motion while reducing the accessory muscles activity. The role of DB as an adjunctive treatment modality in the rehabilitation of COPD patients remains controversial. Despite the conflicting results, improvement of the abdominal motion and a reduction of thoracic excursion, during voluntarily DB, has been described as a common finding of several studies. The investigators hypothesized that a 4-week DBTP could induce higher participation of the diaphragm and this modification would relieve respiratory symptoms and improve exercise tolerance and the HRQoL. Therefore, in this randomized controlled trial the investigators aimed to test the effects of a short-term DBTP on thoracoabdominal motion, pulmonary function, diaphragmatic mobility, dyspnea, HRQoL and exercise tolerance in patients with mild to severe COPD.

Trial Health

100
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
30

participants targeted

Target at below P25 for not_applicable

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

June 1, 2008

Completed
1.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2009

Completed
11 months until next milestone

First Submitted

Initial submission to the registry

October 15, 2010

Completed
4 days until next milestone

First Posted

Study publicly available on registry

October 19, 2010

Completed
Last Updated

October 19, 2010

Status Verified

June 1, 2008

Enrollment Period

1.5 years

First QC Date

October 15, 2010

Last Update Submit

October 18, 2010

Conditions

Keywords

COPD, diaphragm, rehabilitation

Outcome Measures

Primary Outcomes (1)

  • thoracoabdominal motion

    2 years

Secondary Outcomes (1)

  • diaphragmatic mobility

    2 years

Study Arms (2)

Control Group

NO INTERVENTION

The control group will receive only usual care.

Diaphragmatic breathing training

EXPERIMENTAL

The training group will be submitted to a diaphragmatic breathing training program of 4 weeks.

Other: Diaphragmatic breathing training

Interventions

The training group will participate in a diaphragmatic breathing program which will consist of three 45-min sessions each week (12 sessions totally). The program training will be individualized and supervised by the same physiotherapist. In each session, the patients will be initially instructed to perform 3 series of 10 maximally inspirations, predominantly with abdominal motion, while reducing upper rib cage motion in a supine position.

Diaphragmatic breathing training

Eligibility Criteria

Age50 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (1)

  • Yamaguti WP, Claudino RC, Neto AP, Chammas MC, Gomes AC, Salge JM, Moriya HT, Cukier A, Carvalho CR. Diaphragmatic breathing training program improves abdominal motion during natural breathing in patients with chronic obstructive pulmonary disease: a randomized controlled trial. Arch Phys Med Rehabil. 2012 Apr;93(4):571-7. doi: 10.1016/j.apmr.2011.11.026.

MeSH Terms

Conditions

Pulmonary Disease, Chronic Obstructive

Condition Hierarchy (Ancestors)

Lung Diseases, ObstructiveLung DiseasesRespiratory Tract DiseasesChronic DiseaseDisease AttributesPathologic ProcessesPathological Conditions, Signs and Symptoms

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER

Study Record Dates

First Submitted

October 15, 2010

First Posted

October 19, 2010

Study Start

June 1, 2008

Primary Completion

December 1, 2009

Last Updated

October 19, 2010

Record last verified: 2008-06