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.
Mean oxygen consumption rates for walking with the different shoe conditions and for the resting phases. Error bars indicate one standard deviation above and below the mean. Horizontal lines (above the bar graph) are drawn between conditions that were found to be significantly different.
