Diaphragm Activity During Incentive Spirometry and Diaphragmatic Breathing

Hospital Sirio-Libanes

Status and phase

Completed

Phase 1

Conditions

Incentive Spirometry

Diaphragmatic Breathing

Diaphragm Mobility

Breathing Exercises

Treatments

Device: DB, VI and FI

Study type

Interventional

Funder types

Other

Identifiers

NCT00997737

HSL2008/26

Details and patient eligibility

About

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).

Full description

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.

Enrollment

17 patients

Sex

All

Ages

18 to 40 years old

Volunteers

Accepts Healthy Volunteers

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.