8Tomkinson G R,Olds T S. Secular changes in pediatricaerobic fitness test performance:the global picture[M]. Basel:Karger Publishers,2007.
9Rowland T W. The horse is dead; let’s dismount[J].Pediatric Exercise Science,1995,7(2):117-120.
10Cale L,Harris J,Chen M H. Over ten years on from“The horse is dead…”:surely it must be time to “dismount”-![J]. Pediatric Exercise Science,2007,19(2):115-131.