title: Everyday physical activity and adiposity in Prader-Willi syndrome.
abstract: The aim of this study was to assess the impact of Prader-Willi syndrome (PWS) on the level of everyday physical activity and to explore whether the activity level is related to adiposity. Measurements were performed with an accelerometry-based Activity Monitor during two consecutive schooldays in 12 children with PWS (7-16 years of age) and in 12 age- and gender-matched, healthy children. Adiposity was assessed by body mass index standard deviation scores and by percentage body fat (dual energy X-ray absorptiometry). Mean duration of dynamic activities (expressed as percentage of 24 h) was lower in children with PWS than in the comparison group (8.7 [2.5]% and 12.0 [3.1]%, respectively; p = 0.01). Six children with PWS had normal activity levels. Physical activity level was not related to adiposity. The results indicate that, as a group, children with PWS have an inactive lifestyle. However, children with PWS cannot be stereotyped as inactive since half of them had normal activity levels.
authors.affiliation: Department of Rehabilitation Medicine, Erasmus Medical Center, Rotterdam, The Netherlands. h.j.g.vandenberg@erasmusmc.nl
authors.forename: Rita
authors.initials: R
authors.lastname: van den Berg-Emons
authors.forename: Dederieke
authors.initials: D
authors.lastname: Festen
authors.forename: Anita
authors.initials: A
authors.lastname: Hokken-Koelega
authors.forename: Johannes
authors.initials: J
authors.lastname: Bussmann
authors.forename: Henk
authors.initials: H
authors.lastname: Stam
mesh_terms: D000203:Activities of Daily Living; D050154:Adiposity; D000293:Adolescent; D015992:Body Mass Index; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D009043:Motor Activity / Q000502:physiology*; D011218:Prader-Willi Syndrome / Q000150:complications / Q000503:physiopathology*