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.
The effect of crouch angle on (a) ΔKFS (the increase in knee flexion during swing) and foot clearance; (b) speed, step frequency, and step length; and (c) energy distribution. Data are from gaits with a push-off impulse size of 40 N s and no hip spring
