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

Endurance athletes use a number of strategies to distract themselves and manage their performance. For example, athletes can manipulate their attention, focusing either internally (e.g. on the running movement, internal body signals) or externally (e.g. on the environment, music). Research reported in the Journal of Sport & Exercise Physiology measured running economy to confirm the superior beneficial effects of an external focus of attention during endurance sports.