title: Specific airway resistance in healthy young Vietnamese and Caucasian adults.
abstract: In healthy Vietnamese children the respiratory resistance has been suggested to be similar at 110 cm height but larger at 130 cm when compared with data in Caucasians from the literature, suggesting smaller airways in older Vietnamese children (Vu et al., 2008). The hypothesis tested here is whether the difference in airway resistance remains consistent throughout growth, and if it is larger in adult Vietnamese than in Caucasians. Airway resistance and Functional Residual Capacity were measured in healthy young Caucasian and Vietnamese adults in their respective native country using identical equipment and protocols. Ninety five subjects in Vietnam (60 males) and 101 in France (41 males) were recruited. Airway resistance was significantly larger in Vietnamese than in Caucasians and in females than in males, consistent with difference in body dimensions. Specific airway resistance however was not different by ethnicity or gender. The findings do not support the hypothesis that airway size at adult age - once normalized for lung volume - differs between Vietnamese and Caucasians.
authors: Department of Physiology, Hanoi Medical University , Hanoi, Vietnam.
authors: Thanh
authors: T
authors: Le Tuan
authors: Department of Physiology, Hanoi Medical University , Hanoi, Vietnam.
authors: Ngoc Minh
authors: NM
authors: Nguyen
authors: Department of Physiology, University of Lorraine, Vandoeuvre les Nancy, France.
authors: Bruno
authors: B
authors: Demoulin
authors: Department of Paediatric Lung Function Testing, University Hospital of Nancy, Children's Hospital, Vandoeuvre les Nancy, France.
authors: Claude
authors: C
authors: Bonabel
authors: Department of Epidemiology, University Hospital of Nancy, Vandoeuvre les Nancy, France.
authors: Phi Linh
authors: PL
authors: Nguyen-Thi
authors: Department of Paediatric Lung Function Testing, University Hospital of Nancy, Children's Hospital, Vandoeuvre les Nancy, France.
authors: Iulia
authors: I
authors: Ioan
authors: Department of Paediatric Lung Function Testing, University Hospital of Nancy, Children's Hospital, Vandoeuvre les Nancy, France; Department of Epidemiology, University Hospital of Nancy, Vandoeuvre les Nancy, France.
authors: Cyril
authors: C
authors: Schweitzer
authors: Department of Physiology, Hanoi Medical University , Hanoi, Vietnam.
authors: H T T
authors: HT
authors: Nguyen
authors: Department of Paediatric Lung Function Testing, University Hospital of Nancy, Children's Hospital, Vandoeuvre les Nancy, France; Department of Epidemiology, University Hospital of Nancy, Vandoeuvre les Nancy, France.
authors: Silvia
authors: S
authors: Varechova
authors: Department of Paediatric Lung Function Testing, University Hospital of Nancy, Children's Hospital, Vandoeuvre les Nancy, France; Department of Epidemiology, University Hospital of Nancy, Vandoeuvre les Nancy, France. Electronic address: f.marchal@chu-nancy.fr.
authors: Francois
authors: F
authors: Marchal
mesh_terms: D000293:Adolescent; D000328:Adult; D000403:Airway Resistance / Q000502:physiology*; D044466:Asian People; D005260:Female; D005602:France; D006801:Humans; D008297:Male; D015999:Multivariate Analysis; D010991:Plethysmography; D012727:Sex Characteristics; D014744:Vietnam; D044465:White People; D055815:Young Adult
keywords: Airway resistance; Ethnicity; Functional residual capacity; Plethysmography; Specific airway resistance