11. During running the knee joint generates 60 Nm of extensor torque during the same interval...
While a person was walking they generated a knee joint extension torque that averaged 55 Nm for part of the stance phase. Over the same interval of the stance phase, the knee joint changed from being flexed 30 to being flexed 10 in a time of 0.07 s. Determine the angular mechanical work and power generated at the knee joint. (In this problem full extension of the knee would be 0 and larger positive values mean a more flexed knee...
A knee joint flexes at an average rate of 150 degrees/sec during the swing phase of running. If the distance from the knee to the foot is .40 meters and the foot passes through an arc length of 1.1 meters during this movement calculate the length of time of the swing phase.