%0 Journal Article %T Frequently reported activities by intensity for U.S. adults: The American Time Use Survey %A Tudor-Locke, C. %A Johnson, W.D. %A Katzmarzyk, P.T. %D 2010 %R 10.1016/j.amepre.2010.05.017 %P e13-e20 %J American Journal of Preventive Medicine %V 39 %I 4 %2 ISSN: 0749-3797