Children with asthma and obesity breathe at higher tidal volumes, which may increase the efficiency of particulate matter deposition in the lung, researchers reported in the European Respiratory Journal.
“In this study of children with asthma, we found positive associations between BMI and tidal volume, respiratory rate and minute ventilation. We identified that obesity was associated with higher tidal volume and higher minute ventilation, which were in turn associated with greater breath-to-breath efficiency and higher rate of PM2.5 deposition in the lung,” Nima Afshar-Mohajer,