Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Internal focus a versus external focus b instructions during a drop vertical jump. In a, the patient was instructed to land while bending the hips and knees; in b, the patient was instructed to touch the cones when landing. Note the increased hip and knee flexion with the external focus instructions compared with the internal focus instructions
