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

Researchers correlate early specialization in sport with a higher likelihood of injury, burnout and dropout from sport. Multi-sport participation helps young athletes develop a spectrum of skills that transfer to later specialization. The best advice regarding pre-puberty athletes is to help them experience a variety of sports and activities, including unstructured play, and allow them to gravitate to their sport of choice.