• Global physical activity levels: surveillance progress, pitfalls, and prospects 

      Hallal, Pedro C.; Andersen, Lars Bo; Bull, Fiona C.; Guthold, Regina; Haskell, William; Ekelund, Ulf (Journal article; Peer reviewed, 2012-07-18)
      To implement effective non-communicable disease prevention programmes, policy makers need data for physical activity levels and trends. In this report, we describe physical activity levels worldwide with data for adults ...