Use double quotes to find documents that include the exact phrase: "aerodynamic AND testing"

“Stage-appropriate officiating” creates a team approach to the delivery of quality youth sport whereby officials “guide and remind” athletes during the FUNdamentals and early Learn to Train stages; “warn then enforce” during late Learn to Train; and enforce traditional rules in the Train to Train stage. Stage-appropriate officiating could also help retain officials by tapping into their love of the game, increasing perceived organizational support, and decreasing official abuse.