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 force and EMG of the biceps femoris, gastrocnemius, rectus femoris, soleus, and vastus in a full gait cycle. The muscle forces were normalized with body weight; the EMG magnitudes were normalized with the standard isometric contractions. Since EMG magnitude could not sensitively reflect the muscle force, the correlation between the timing of peak EMG and the timing of peak muscle force was calculated to evaluate the validity of the muscle force calculation.
