PT  - JOURNAL ARTICLE
AU  - Renata Basso-Vanelli
AU  - Audrey Borghi-Silva
AU  - Paula A. Ricci
AU  - Natalia R. Faria
AU  - Kelly Zambrano
AU  - Livia P. Carvalho
AU  - Luciana Di Thommazo-Luporini
AU  - Luiz A. Menegazzo
AU  - Claudio R. Oliveira
AU  - Dirceu Costa
TI  - Comparison of diaphragmatic motion measured by M-mode sonography between different classes of obesity
AID  - 10.1183/13993003.congress-2016.PA1365
DP  - 2016 Sep 01
TA  - European Respiratory Journal
PG  - PA1365
VI  - 48
IP  - suppl 60
4099  - http://erj.ersjournals.com/content/48/suppl_60/PA1365.short
4100  - http://erj.ersjournals.com/content/48/suppl_60/PA1365.full
SO  - Eur Respir J2016 Sep 01; 48
AB  - Background: obesity can affect the respiratory system (RS) resulting in a lower tidal volume, decreased functional residual capacity, higher respiratory rate, low strength and endurance of the respiratory muscles and high levels of fatigue. However, little is known about the mobility of the diaphragm (MD) in this population.Aims: the aim of this study was to compare MD measured by M-mode ultrasonography between different classes of obesity. Methods: 20 obese (7 men/13 women) completed thestudy: 6 were classified as classII (45±11.3 years; BMI: 38.1±1.6 kg/m2) and 14 as class III (41.4±7.1 years; BMI: 46.5±4.8 kg/m2). Right MD was measured by ultrasonographic images by M-mode during quiet (QB) and deep breathing (DB).Results: Right MD during QB and DB were significantly (p<0.05)lower in those class III (class II: 1.91±0.5/3.5±0.4cm, respectively/ class III: 1.30±0.4/2.5±0.8cm). There was no difference between genders in each group for QB and DB (class II – men: 2±0.7 / 3.8±1.7; women: 1.8±0.3 / 2±0.7. Class III – men 0.96±0.2/1.9±1; women: 1.14±0.3 / 2.7±0.7, respectively)Body weight was strongly and moderately correlated with DM in both groups, respectively (class II: r=-0.91, class III: r=-0.57, p<0.05). Conclusion: morbidly obese negatively impact on MD. Strategies to increase MD and thus reduce RS alterations may be implemented in future studies.Supported by Capes/PNPD.