Effects of the Breath Stacking Technic in Healthy Individuals

This study aims to Analyze and compere the hemodynamic and respiratory variables before, during and after the applying of technic as well as evaluate respiratory pressures generated during applying of this same technic and correlate them with the effort noticed by device user.

Study Overview

• Status: Completed
• Conditions: Hemodynamic Instability
• Intervention / Treatment: Other: Breath stacking

Detailed Description

The breath stacking technic (BS) is an inspiratory maneuver used for recruitment of collapsed alveoli and, consequently, improves oxygenation and, therefore, used by respiratory physiotherapy aiming promoting lung re-expansion being. The BS was described by Marini as an attempt of optimizing vital capacity in little co-operative individuals and hemodynamics has been considered a way of incentive spirometry that provides high lung volume, in situations, in which, inspiratory maneuver duration can be as important as the volume reached, composing an alternative incentive of inspiration technic4. The system used is composed by an interface (facial mask) connected to the patient, an inspiratory unidirectional valve and the respiratory branch which is kept occluded during the carrying out of maneuvers.

• Study Type: Observational
• Enrollment (Actual): 52

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 30 years (Adult)
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: All

• Sampling Method: Non-Probability Sample

Study Population

52 healthy young volunteers The volunteers at the age of 18 to 30, sedentary: absence of neuromuscular and/or cardiac respiratory diseases were included, the smokers, overweight, claustrophobic or the ones with difficulty in carrying out the technic were excluded

Description

Inclusion Criteria:

• age of 18 to 30, sedentary, absence of neuromuscular and/or cardiac respiratory diseases

Exclusion Criteria:

• the smokers, overweight, claustrophobic or the ones with difficulty in carrying out the technic

Study Plan

How is the study designed?

Number of groups / cohorts

1

Cohorts and Interventions

Group / Cohort

Intervention / Treatment

Breath stacking; During initial rest period, the volunteer remained seated for 10' in spontaneous breathing. During carrying out of the breath stacking technic, the volunteer remained seated, being requested to hold the mask on his/her face not allowing air scape, The volunteer was oriented to inhale normally and exhale all the air during expiration for 20 seconds. During the 20 seconds of applying of technic, in the three series the maximum inspiratory and expiratory pressures reached during the carrying out of technic. In the final rest period, right after technic end, the volunteers remained seated for 10 minutes in spontaneous breathing and again the same variables of control at the 10th minute were assessed.

Other: Breath stacking; During initial rest period, the volunteer remained seated for 10' in spontaneous breathing. Right after, the measurement of arterial pressure, of SpO2 (%), of heart rate, of respiratory frequency and applied to a modified effort perception Borg. During carrying out of the breath stacking technic, the volunteer remained seated, being requested to hold the mask on his/her face not allowing air scape, The volunteer was oriented to inhale normally and exhale all the air during expiration for 20 seconds, and the variables were assessement again the same variables of control. In the final rest period, right after technic end, the volunteers remained seated for 10 minutes in spontaneous breathing and again the same variables of control at the 10th minute were assessed.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
maximum inspiratory and expiratory pressures	connected to a manometer from brand Commercial Medica (Brazil) used to measure maximum inspiratory and expiratory pressures generated during carrying out of technic. The volunteer was oriented to inhale normally and exhale all the air during expiration for 20 seconds.	During the intervention. They will be used to verify the average pressures generated during the execution of the technique. Time of the technique equal to 20 seconds.

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
modified effort perception Borg scale	applied to a modified effort perception Borg scale with a score from 0 to 10, considering 0 the smallest effort noticed and 10 the biggest effort reported	Before, during and after the intervention. They will be used to compare the variation before, during and after the technique. Valuation time was 1 minute.
heart rate	by palpation method of radial artery, of respiratory frequency by direct counting of thoracic movement	Before, during and after the intervention. They will be used to compare the variation before, during and after the technique. Valuation time was 1 minute.
peripheral oxygen saturation	through a pulse oximeter	Before, during and after the intervention. They will be used to compare the variation before, during and after the technique. Valuation time was 1 minute.
systolic arterial pressure	the measurement of systolic arterial pressure were assessed using an aneroid-type sphygmomanometer	Before, during and after the intervention. They will be used to compare the variation before, during and after the technique. Valuation time was 1 minute.
diastolic arterial pressure	the measurement of systolic arterial pressure were assessed using an aneroid-type sphygmomanometer from the brand Lamedial Commercial	Before, during and after the intervention. They will be used to compare the variation before, during and after the technique. Valuation time was 1 minute.

Collaborators and Investigators

• Sponsor: Federal University of Uberlandia

Study record dates

Study Major Dates

• Study Start: October 1, 2012
• Primary Completion (Actual): January 1, 2013
• Study Completion (Actual): September 1, 2013

Study Registration Dates

• First Submitted: January 24, 2017
• First Submitted That Met QC Criteria: February 1, 2017
• First Posted (Estimate): February 3, 2017

Study Record Updates

• Last Update Posted (Estimate): February 3, 2017
• Last Update Submitted That Met QC Criteria: February 1, 2017
• Last Verified: February 1, 2017

More Information

Terms related to this study

• Keywords: physiotherapy; hemodynamics; breath stacking
• Other Study ID Numbers: CEP/UFU 364/11

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No