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.
A schematic of the hip and knee angles during explosive knee extensions performed on an isovelocity dynamometer, in four separate conditions; (a) concentric (CON), (b) eccentric (ECC) and (c) two isometric positions (101° (ISO101) and 155° (ISO155)). During the dynamic conditions, the crank arm accelerated at 2000°.s−2 from a knee angle of 94° to 146° (CON) and from 161° to 109° (ECC), before decelerating over a further 15° of motion.
