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.
a, b Free moment contribution to the total moment, %, as a function of the location of the moment axis. a Positive moment production (pronation efforts); b negative moment production (supination efforts). Averaged across subjects data are presented with standard error bars. To find the PZFMs, the regression lines were extrapolated to the level of the zero contribution of the free moment
