Ventilatory Muscle Training by Breath-Stacking in Healthy Youngsters

NCT03258944 | Completed

• 1 other identifier: VMTBS- HY
• Study Type: interventional
• Target: 34
• Locations: 1 country
• Sites: 1

Brief Summary

In several diseases in which muscle weakness is a determining factor for morbidity and mortality, inspiratory muscle training has been shown to be useful in improving the function of ventilatory muscles, delaying or minimizing the development of complications due to the reduction of inspiratory muscle strength. The breath-stacking technique emerges as an easily applicable alternative, and it can be used in poorly collaborative patients. The technique described in the literature aims to increase pulmonary volumes. This gain occurs with the coupling of a silicone mask on the patient's face, a unidirectional valve and with the expiratory branch occluded. Thus, inspirations occur sequentially in this medium, generating pulmonary hyperinflation and increasing the contractility power of the expiratory muscles, which are fundamental for coughing. This hyperinflation also improves the peripheral air distribution in the lungs by increasing intrathoracic pressure. The objective of this study is to evaluate the effect of the breath-stacking (BS) technique on the ventilatory muscle strength of young and healthy individuals.

Conditions

Muscle Weakness

Outcome Measures

Primary Outcomes (1)

• Ventilatory Muscle Strength

  Maximum inspiratory and expiratory pressure

  four weeks

Study Arms (1)

Breath-Stacking

EXPERIMENTAL

Participants will be seated, with their elbows resting on the table, holding the face mask attached to a T-tube and a one-way valve. They will be instructed to inspire and force the expiration inside the mask. The training will be conducted three times a week for a period of four weeks, totaling twelve sessions. The breath-stacking application protocol will consist of three three-minute series, with a three-minute recovery interval between each series, obtaining a total time of fifteen minutes in each session

Other: Breath-Stacking

Interventions

Breath-Stacking OTHER

Participants will be seated, with their elbows resting on the table, holding the face mask attached to a T-tube and a one-way valve. They will be instructed to inspire and force the expiration inside the mask. The training will be conducted three times a week for a period of four weeks, totaling twelve sessions. The breath-stacking application protocol will consist of three three-minute series, with a three-minute recovery interval between each series, obtaining a total time of fifteen minutes in each session.

Breath-Stacking

Eligibility Criteria

• Age: 18 Years - 24 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• No signs and symptoms of pulmonary diseases, normal ventilatory muscle strength and agreement to participate and sign the informed consent form.

You may not qualify if:

• Presenting neuromuscular diseases, claustrophobia, ruptured eardrum, history of spontaneous pneumothorax and playing wind instruments or being a singer. Sample loss will be considered as non-attendance at all training sessions.

Sponsors & Collaborators

• Federal University of Health Science of Porto Alegre: lead

Study Sites (1)

Universidade Federal de Ciências da Saúde de Porto Alegre

Porto Alegre, Rio Grande do Sul, 90050-170, Brazil

Location

MeSH Terms

Conditions

Muscle Weakness

Condition Hierarchy (Ancestors)

Muscular Diseases; Musculoskeletal Diseases; Neuromuscular Manifestations; Neurologic Manifestations; Nervous System Diseases; Pathologic Processes; Pathological Conditions, Signs and Symptoms; Signs and Symptoms

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NA
• Masking: NONE
• Purpose: OTHER
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: PhD

Study Record Dates

• First Submitted: July 21, 2017
• First Posted: August 23, 2017
• Study Start: September 1, 2017
• Primary Completion: November 1, 2017
• Study Completion: December 1, 2017
• Last Updated: January 18, 2018

Record last verified: 2018-01

Data Sharing

• IPD Sharing: Will not share

Locations

BR (1)