The art of visualization: What is it, and how does it help athletes at the Winter Olympics?

Several athletes at the Olympics have looked as if they're dancing just before they set off to compete, but they are visualizing.
BMJ

Acute whole body vibration training increases vertical jump and flexibility performance in elite female field hockey players

Correspondence to: Darryl J Cochrane Massey University, Sport and Exercise, Palmerston North, New Zealand; d.cochranemassey.ac.nz Objective: To quantify the acute effect of whole body vibration (WBV) ...