Margaret A.WinkerMD, Senior EditorIndividualAuthorPhil B.FontanarosaMD, Senior EditorIndividualAuthor
To the Editor.—Dr Andersen and colleagues1 address 2 important questions—whether ethnic groups are determinants of the level of physical activity and whether physical activity and television watching are determinants of body composition.
Limited data are available concerning physical activity and television watching in children and adolescents of countries other than the United States, and we think that, as in other cases, it is important to analyze results of this issue in other populations. Seven years ago in Zaragoza, Spain, we carried out a representative cross-sectional survey of adolescents (537 boys and 541 girls) aged 13 and 14 years.2- 4
Moreno LA, Fleta J, Mur L. Television Watching and Fatness in Children. JAMA. 1998;280(14):1230-1232. doi:10-1001/pubs.JAMA-ISSN-0098-7484-280-14-jbk1014