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.
Box plots for the average time derivative of force each of the 6 operators. Each box plot represents 5 completed cases. The time derivative of force is calculated as a rate of change of the force (see Methods). A, Mean push/pull force rate. B, Mean torque rate right and left.
