Fig 2. Histogram of the times it took for the participants to run 5 km at individual maximal speed.
Data was missing in one subject for technical reasons.
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.