title: Maximum oxygen uptake and body composition of healthy Hong Kong Chinese adult men and women aged 20 - 64 years.
abstract: The aims of the present study were to assess the maximal oxygen uptake and body composition of adult Chinese men and women, and to determine how these variables relate to age. The cross-sectional sample consisted of 196 men and 221 women aged 20 - 64 years. Maximal oxygen uptake (VO2max) was determined by indirect calorimetry during a maximal exercise test on an electrically braked cycle ergometer. The correlations between VO2max and fat mass were -0.52 in men and -0.58 in women. Linear regression defined the cross-sectional age-related decline in VO2max as 0.35 ml kg(-1) min(-1) year(-1) in men and 0.30 ml kg(-1) min(-1) year(-1) in women. Multiple regression analysis showed that more than 50% of this cross-sectional decline in VO2max was due to fat mass, lean mass, and age. Adding fat mass and lean mass to the multiple regression models reduced the age regression mass from 0.35 to 0.24 ml kg(-1) min(-1) year(-1) in men and from 0.30 to 0.15 ml kg(-1) min(-1) year(-1) in women. We conclude that age, fat mass, and lean mass are independent determinants of maximal oxygen uptake in Chinese adults.
authors.affiliation: Department of Community and Family Medicine, School of Public Health, Chinese University of Hong Kong, School of Public Health, Shatin Hospital, Hong Kong. yeungshanwong@cuhk.edu.hk
authors.forename: Samuel Yeung Shan
authors.initials: SY
authors.lastname: Wong
authors.forename: Frank Wan Kin
authors.initials: FW
authors.lastname: Chan
authors.forename: Chi Kei
authors.initials: CK
authors.lastname: Lee
authors.forename: Martin
authors.initials: M
authors.lastname: Li
authors.forename: Fai
authors.initials: F
authors.lastname: Yeung
authors.forename: Christopher Chor Ming
authors.initials: CC
authors.lastname: Lum
authors.forename: Dicky T K
authors.initials: DT
authors.lastname: Choy
authors.forename: Jean
authors.initials: J
authors.lastname: Woo
mesh_terms: D000328:Adult; D001642:Bicycling; D001823:Body Composition / Q000502:physiology*; D002151:Calorimetry; D003430:Cross-Sectional Studies; D005080:Exercise Test; D005260:Female; D006723:Hong Kong; D006801:Humans; D008297:Male; D008875:Middle Aged; D010101:Oxygen Consumption / Q000502:physiology*; D012044:Regression Analysis