School policies to increase physical activity unlikely to reduce obesity, study warns

BMJ 2009; 338 doi: (Published 02 April 2009) Cite this as: BMJ 2009;338:b1378
  1. David Spurgeon
  1. 1Quebec

    Population based policies that mandate increased physical activity in Canadian schools are unlikely to have a significant effect on the increasing prevalence of childhood obesity, a meta-analysis suggests (CMAJ 2009;180:719-26, doi:10.1503/cmaj.080966).

    Researchers from BC Children’s Hospital, Vancouver, and Vancouver General Hospital found that body mass index did not …

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