Date	Event	Description
24 August 2013	New search has been performed	A new update search was performed for this review on 24 August 2013
17 December 2008	New citation required but conclusions have not changed	The update rendered one study (Oken 2006) which met the inclusion criteria. The results of the review have slightly changed.
17 December 2008	Amended	Incorporation of the risk of bias tables for all included studies
15 July 2008	New search has been performed	A new update search was performed for this review on 15 July 2008
10 April 2008	New search has been performed	The delayed memory functions data have been corrected
10 April 2008	New citation required and conclusions have changed	Errors in the data entry for the outcome delayed memory function have been corrected. The effect of physical exercise on this outcome are not statistically significant