Since the moment arm lengths for hip extension appear to be similar between the semitendinosus, semimembranosus and biceps femoris (long head)(Dostal et al. 1986), this may imply that one muscle in each subgroup is better suited for producing large excursions with high joint
angular velocities while the other may be better suited for performing very forceful muscular contractions over short excursions (see review by Lieber and Fridén, 2000).
Since angular momentum is linear in
angular velocity while rotational energy is quadratic, such an exchange will indeed involve converting an excess of KE to some other form, though considerably less than 2e22 J. Redo your math and you'll see just how much less.
Not exact matches
The isometric training was performed with maximal speed - intent but without moving,
while the isokinetic training was performed with maximal speed - intent, and at a relatively high
angular velocity (300 degrees / s).
They report that when performing plantarflexion with the knee fully extended, the medial and lateral gastrocnemius displayed superior peak muscle activity with increasing
angular velocity,
while the soleus displayed decreasing peak muscle activity with increasing
velocity.
Knee flexion and extension
angular velocities can reach 1,083 and 1,165 degrees / s,
while hip flexion and extension
angular velocities can reach 726 and 666 degrees / s (Kivi et al. 2002).