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Completed

NCT Number: NCT03042403

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.

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Key information

Conditions

Hemodynamic Instability

Age range

18 year–30 year

Sex eligibility

All sexes

Study type

Observational

About this study

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.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

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

Treatment and study plan

Breath Stacking

Other

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.

Primary outcomes

  1. maximum inspiratory and expiratory pressures

    Time frame: 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.

    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.

Secondary outcomes

  1. modified effort perception Borg scale

    Time frame: 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.

    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

  2. heart rate

    Time frame: 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.

    by palpation method of radial artery, of respiratory frequency by direct counting of thoracic movement

  3. peripheral oxygen saturation

    Time frame: 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.

    through a pulse oximeter

  4. systolic arterial pressure

    Time frame: 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.

    the measurement of systolic arterial pressure were assessed using an aneroid-type sphygmomanometer

  5. diastolic arterial pressure

    Time frame: 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.

    the measurement of systolic arterial pressure were assessed using an aneroid-type sphygmomanometer from the brand Lamedial Commercial

Sponsors and collaborators

Lead sponsor

Federal University of Uberlandia

Other

Registry information

Important dates

Study start
2012
Primary completion
2013
Study completion
2013
First posted
Feb 3, 2017
Registry last updated
Feb 3, 2017

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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