Breathing Exercises, Diaphragmatic Breathing, Diaphragm Mobility, Incentive Spirometry
Conditions
Keywords
incentive spirometry, diaphragm mobility, ultrasound, diaphragmatic breathing
Brief summary
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
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.
Interventions
DEVICEDB, 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.
Sponsors
Hospital Sirio-Libanes
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
SINGLE (Investigator)
Eligibility
Sex/Gender
ALL
Age
18 Years to 40 Years
Healthy volunteers
Yes
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.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| ultrasound evaluation of the diaphragm mobility | six - eight months |
Secondary
| Measure | Time frame |
|---|---|
| pulmonary function test | six - eight months |
Countries
Brazil
Outcome results
None listed