Figure 2.

As indicated by the continuous line, torque decreases with increasing (positive) angular velocity while it increases and then stays constant with negative angular velocities. As a consequence, power (angular velocity × torque) has an optimum in concentric contractions and the decreases at higher angular velocities. Negative power increases first and then continues to increase with higher (negative) angular velocities. This indicates, that extremely high values of negative power can be achieved putting muscle tissue at risk (with permission from Hoppeler, 2014).