Torque-angular velocity profiles and power-angular velocity profiles for (A) the hip and (B) the knee of one subject producing three different effort levels. Torque-angular velocity profiles and power-angular velocity profiles for (A) the hip and (B) the knee of one subject producing three different effort levels. Curves represent empirical model of experimental data. Data represent a subset of data collected and published by Hawkins and Smeulders.31,32 A Baudouin, and D Hawkins Br J Sports Med 2002;36:396-402 Copyright © BMJ Publishing Group Ltd & British Association of Sport and Exercise Medicine. All rights reserved.