An official website of the United States government
Here's how you know
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.
Strength curve (top race), raw electromyograph obtained in the quadriceps femoris muscles, and the sliced in the EMG signal where the root mean square was calculated