title: The influence of anthropometry and body composition on children's bone health: the childhood health, activity and motor performance school (the CHAMPS) study, Denmark.
abstract: Overweight, physical inactivity and sedentary behaviour have become increasing problems during the past decade. Increased sedentary behaviour may change the body composition (BC) by increasing the fat mass relative to the lean mass (LM). These changes may influence bone health to describe how anthropometry and BC predict the development of the bone accruement. The longitudinal study is a part of The CHAMPS study-DK. Children were DXA scanned at baseline and at 2-year follow-up. BC (LM, BF %) and BMC, BMD and BA were measured. The relationship between bone traits, anthropometry and BC was analysed by multilevel regression analyses. Of the invited children, 742/800 (93%) accepted to participate. Of these, 682/742 (92%) participated at follow-up. Mean (range) of age at baseline was 9.5 years (7.7-12.1). Height, BMI, LM and BF % predicted bone mineral accrual and bone size positively and independently. Height and BMI are both positive predictors of bone accruement. LM is a more precise predictor of bone traits than BF % in both genders. The effects of height and BMI and LM on bone accruement are nearly identical in the two genders, while changes in BF % have different but positive effects on bone accretion in both boys and girls.
authors.affiliation: Hans Christian Andersen Children's Hospital, Odense University Hospital, Sdr. Boulevard 29, 5000, Odense C, Denmark, msheidemann@dadlnet.dk.
authors.forename: Malene
authors.initials: M
authors.lastname: Heidemann
authors.forename: René
authors.initials: R
authors.lastname: Holst
authors.forename: Anders J
authors.initials: AJ
authors.lastname: Schou
authors.forename: Heidi
authors.initials: H
authors.lastname: Klakk
authors.forename: Steffen
authors.initials: S
authors.lastname: Husby
authors.forename: Niels
authors.initials: N
authors.lastname: Wedderkopp
authors.forename: Christian
authors.initials: C
authors.lastname: Mølgaard
mesh_terms: D000886:Anthropometry; D001823:Body Composition / Q000502:physiology*; D015992:Body Mass Index; D015519:Bone Density / Q000502:physiology*; D001846:Bone Development / Q000502:physiology*; D001842:Bone and Bones / Q000502:physiology*; D002648:Child; D002675:Child, Preschool; D003718:Denmark; D005260:Female; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D009043:Motor Activity; D012574:Schools