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Influence of Body Composition on Lung Function and Respiratory Muscle Strength in Children With Obesity

Dirceu Costa Junior1, Fabiana S Peixoto-Souza2, Poliane N Araujo2

  • 1Hortolandia City Hall, Sao Paulo, Brazil.

Journal of Clinical Medicine Research
|January 15, 2016
PubMed

Insights

Children with obesity showed reduced lung function, particularly males. Body composition significantly impacts lung capacity, suggesting it can predict respiratory changes in pediatric obesity.

Area of Science:

  • Pediatric Pulmonology
  • Pediatric Obesity Research
  • Cardiorespiratory Health

Background:

  • Childhood obesity is linked to impaired lung function and reduced respiratory muscle strength.
  • Understanding the impact of body composition on respiratory health in children is crucial.

Purpose of the Study:

  • To evaluate lung function and respiratory muscle strength in children with obesity.
  • To determine how body composition influences these respiratory parameters.

Main Methods:

  • A cross-sectional study included 75 children (6-10 years old), with 40 having obesity.
  • Evaluated body mass index, z-score, waist circumference, body composition, respiratory muscle strength, and lung function (spirometry).

Main Results:

  • Children with obesity had greater lean and fat mass but similar respiratory muscle strength compared to normal-weight peers.
  • Male children with obesity exhibited significantly lower forced expiratory volume in the first second % (FEV1%) and FEV1/forced vital capacity % (FVC%).
  • Body composition variables significantly influenced spirometric measures.

Conclusions:

  • Children with obesity experience reduced lung volume and capacity.
  • Anthropometric and body composition factors may predict altered lung function in pediatric obesity.
Abstract

Keywords:
Body compositionChildhood obesityLung functionRespiratory muscle strengthRespiratory system

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