Posture and Pulmonary Function of Mouth-breathing Children

This study has been completed.
Information provided by:
Universidade Federal do Rio de Janeiro Identifier:
First received: November 24, 2009
Last updated: November 25, 2009
Last verified: November 2009
The purpose of this study is to characterize the posture and respiratory function of mouth-breathing children.

Mouth Breathing

Study Type: Observational
Study Design: Time Perspective: Cross-Sectional
Official Title: Posture and Pulmonary Function of Mouth-breathing Children

Further study details as provided by Universidade Federal do Rio de Janeiro:

Primary Outcome Measures:
  • Pulmonary function, by means of forced spirometry. [ Time Frame: Within the first 30 days after recruitment. ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • Posture, by means of photogrammetry. [ Time Frame: Within the first 30 days after recruitment. ] [ Designated as safety issue: No ]

Enrollment: 34
Study Start Date: June 2004
Study Completion Date: June 2008
Primary Completion Date: June 2008 (Final data collection date for primary outcome measure)
Mouth Breathing
Children aged between 8-12 years, with clinical diagnosis of mouth breathing
Nasal Breathing
Children aged between 8-12 years old, with normal breathing

Detailed Description:
Mouth-breathing children presents changes in stomatognathic system, which results in head projection, tension augment in scapular belt muscles and postural adaptations. Although thoracic shape and posture can influence ventilatory dynamics, we didn't find studies addressing pulmonary function of mouth-breathing children. This was a transversal study, designed to analyze the posture of mouth-breathing children, and verify the existence of correlation between posture and pulmonary volumes.

Ages Eligible for Study:   8 Years to 12 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population

Mouth-breathing children were referred by Pediatrics Service (Federal University of Rio de Janeiro) and by School of Dentistry (Federal University of Rio de Janeiro), after the diagnosis of mouth breathing was confirmed.

Nasal breathing children were recruited from Tia Ciata Municipal School (Praça Onze-Rio de Janeiro, Brazil).


Inclusion Criteria:

  • Nasal breathing (normal subjects group) or mouth breathing (mouth-breathing group), and the age between eight (08) and twelve (12) for both groups.

Exclusion Criteria:

  • Prior physiotherapeutic treatment or in process, presence of diagnostic or report on acute or chronic pulmonary disease, neurofunctional or cognitive impairment and alteration of the osteomuscular system.
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Please refer to this study by its identifier: NCT01019525

Federal University of Rio de Janeiro
Rio de Janeiro, Brazil
Sponsors and Collaborators
Universidade Federal do Rio de Janeiro
Study Chair: Sara LS Menezes, PhD Universidade Federal do Rio de Janeiro
  More Information

Responsible Party: Waleska da Silveira Venturelli, Universidade Federal do Rio de Janeiro Identifier: NCT01019525     History of Changes
Other Study ID Numbers: MBPF 
Study First Received: November 24, 2009
Last Updated: November 25, 2009
Health Authority: Brazil: National Committee of Ethics in Research

Keywords provided by Universidade Federal do Rio de Janeiro:
respiratory disorders

Additional relevant MeSH terms:
Mouth Breathing
Respiratory Aspiration
Pathologic Processes
Respiration Disorders
Respiratory Tract Diseases
Signs and Symptoms
Signs and Symptoms, Respiratory processed this record on May 26, 2016