title: [Effects of breathing exercises on breathing pattern and thoracoabdominal motion after gastroplasty].
abstract: OBJECTIVE
  To evaluate breathing pattern and thoracoabdominal motion during breathing exercises.
  
  
  METHODS
  Twenty-four patients with class II or III obesity (18 women; 6 men) were studied on the second postoperative day after gastroplasty. The mean age was 37 +/- 11 years, and the mean BMI was 44 +/- 3 kg/m(2). Diaphragmatic breathing, incentive spirometry with a flow-oriented device and incentive spirometry with a volume-oriented device were performed in random order. Respiratory inductive plethysmography was used in order to measure respiratory variables and thoracoabdominal motion.
  
  
  RESULTS
  Comparisons among the three exercises showed significant differences: tidal volume was higher during incentive spirometry (with the flow-oriented device or with the volume-oriented device) than during diaphragmatic breathing; the respiratory rate was lower during incentive spirometry with the volume-oriented device than during incentive spirometry with the flow-oriented device; and minute ventilation was higher during incentive spirometry (with the flow-oriented device or with the volume-oriented device) than during diaphragmatic breathing. Rib cage motion did not vary during breathing exercises, although there was an increase in thoracoabdominal asynchrony, especially during incentive spirometry with the flow-oriented device.
  
  
  CONCLUSIONS
  Among the breathing exercises evaluated, incentive spirometry with the volume-oriented device provided the best results, because it allowed slower, deeper inhalation.
authors.affiliation: Federal University of Minas Gerais, Belo Horizonte, Brazil.
authors.forename: Georgia Miranda
authors.initials: GM
authors.lastname: Tomich
authors.forename: Danielle Corrêa
authors.initials: DC
authors.lastname: França
authors.forename: Marco Túlio Costa
authors.initials: MT
authors.lastname: Diniz
authors.forename: Raquel Rodrigues
authors.initials: RR
authors.lastname: Britto
authors.forename: Rosana Ferreira
authors.initials: RF
authors.lastname: Sampaio
authors.forename: Verônica Franco
authors.initials: VF
authors.lastname: Parreira
mesh_terms: D000005:Abdomen / Q000503:physiopathology*; D000328:Adult; D001945:Breathing Exercises; D005260:Female; D015391:Gastroplasty; D006801:Humans; D008297:Male; D009068:Movement; D009765:Obesity / Q000503:physiopathology* / Q000534:rehabilitation / Q000601:surgery; D011184:Postoperative Period; D015656:Respiratory Mechanics / Q000502:physiology*; D013147:Spirometry / Q000379:methods; D013909:Thorax / Q000503:physiopathology*