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.
Responses to “triangular-shaped” changes in stimulus frequency for one subject before and during complete tibial nerve block. A, Responses to trains of increasing then decreasing frequency (between 10 and 100 Hz) over ∼20 sec. Thearrow marks the onset of the “extra” force.B, Corresponding force–frequency relationship.
