Date	Event	Description
19 April 2009	New citation required but conclusions have not changed	Substantive amendment
14 January 2009	New search has been performed	This updated review is one of two Cochrane reviews replacing an earlier review, 'Exercise for osteoarthritis of the hip or knee'. Since the original review, the editors decided to subdivide the review into separate conditions. The Background section has been revised to provide information on the specific disorder only, and the search strategy has been revised accordingly. The Methods section has been updated to reflect current Cochrane Musculoskeletal Group methods. 3 new studies were added in this updated review: Foley 2003; Fransen 2007; Tak 2005
14 January 2009	Amended	Converted to new review format. CMSG ID added A040‐R