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Diaphragm Activity During Incentive Spirometry and Diaphragmatic Breathing

NCT ID: NCT00997737

Last Updated: 2010-05-28

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE1

Total Enrollment

17 participants

Study Classification

INTERVENTIONAL

Study Start Date

2009-10-31

Study Completion Date

2010-05-31

Brief Summary

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The objective of the present study is to evaluate diaphragm activity during three breathing exercises: diaphragmatic breathing (DB), flow-oriented (Triflo II)incentive spirometry and volume-oriented (Voldyne) incentive spirometry.

Seventeen healthy subjects will be studied (8 man and 9 woman).

Detailed Description

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Right diaphragmatic mobility will be evaluated by determining the craniocaudal displacement of the left branch of the portal vein using a B-mode ultrasound device (Logic 500, Pro Series®; General ElectricMedical Systems, Milwaukee, WI, USA). The ultrasound technician will use a 3.5 MHz convex transducer positioned in the right subcostal region, with the incidence angle perpendicular to the craniocaudal axis, in the direction of the inferior vena cava. Next, an intraparenchymal portal branch will be identified in the field of vision and its position will be traced with the curser during the forced inspiration and expiration. The craniocaudal displacement of these points will be considered to be the amount of right diaphragmatic mobility.

Conditions

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Diaphragm Mobility Breathing Exercises Incentive Spirometry Diaphragmatic Breathing

Keywords

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incentive spirometry diaphragm mobility ultrasound diaphragmatic breathing

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Investigators

Study Groups

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DB, VI and FV

Breathing exercises

Group Type EXPERIMENTAL

DB, VI and FI

Intervention Type DEVICE

Two modalities of respiratory exercises based on deep and slow inspirations will be used: DB and IS. During DB, the researcher will place one hand slightly below the lower ribs in the abdominal region of the subject and the subject will be instructed to perform inspirations up to the maximum level of volume avoiding rib cage displacement; this recommendation will also be valid for exercises using incentive spirometers. IS will be executed using two different devices: Triflo II and Voldyne.

Interventions

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DB, VI and FI

Two modalities of respiratory exercises based on deep and slow inspirations will be used: DB and IS. During DB, the researcher will place one hand slightly below the lower ribs in the abdominal region of the subject and the subject will be instructed to perform inspirations up to the maximum level of volume avoiding rib cage displacement; this recommendation will also be valid for exercises using incentive spirometers. IS will be executed using two different devices: Triflo II and Voldyne.

Intervention Type DEVICE

Other Intervention Names

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diaphragmatic exercice incentive spirometry

Eligibility Criteria

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Inclusion Criteria

* Being 18 to 40 years old
* Having a normal body mass index
* Being a non-smoker
* Not knowing the DB and the IS techniques
* Reporting the absence of respiratory diseases.

Exclusion Criteria

* Presenting alteration in respiratory function detected by functional analysis of lung volume and capacity
* Inability to understand or perform the procedure.
Minimum Eligible Age

18 Years

Maximum Eligible Age

40 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Hospital Sirio-Libanes

OTHER

Sponsor Role lead

Responsible Party

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Hospital Sírio Libanês

Principal Investigators

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Wellington P Yamaguti, Master

Role: PRINCIPAL_INVESTIGATOR

Hospital Sírio-Libanês

Locations

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Instituto de Ensino e Pesquisa do Hospital Sírio Libanês

São Paulo, São Paulo, Brazil

Site Status

Countries

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Brazil

References

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Yamaguti WP, Sakamoto ET, Panazzolo D, Peixoto Cda C, Cerri GG, Albuquerque AL. Diaphragmatic mobility in healthy subjects during incentive spirometry with a flow-oriented device and with a volume-oriented device. J Bras Pneumol. 2010 Nov-Dec;36(6):738-45. doi: 10.1590/s1806-37132010000600011. English, Portuguese.

Reference Type DERIVED
PMID: 21225177 (View on PubMed)

Other Identifiers

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HSL2008/26

Identifier Type: -

Identifier Source: org_study_id